List of data displayed by the scan tool
The engine data list displayed by the scan tool contains all of the engine related data that is available on the scan tool. The list is organized alphabetically. Each of the parameters can be included in any one of the data lists, and in some cases more than once, or be included in more than one data list, if it belongs to a group of certain interrelated parameters.
Use the list of data displayed by the scan tool only after the following conditions are met:
- The diagnostic system check is complete.
- Diagnostic Trouble Codes (DTC) missing.
- Built-in diagnostic systems are functioning correctly.
Scan tool readings on a good engine can be used for comparison with a diagnosed engine. The list of engine data displayed by the scan tool indicates the values that would be obtained from a normally running engine.
Important: Do not use a scan tool that displays erroneous data. Scanning tool failure should be reported to the manufacturer. Using a faulty scan tool may result in diagnostic errors and replacement of parts and assemblies that were not necessary.
Only the data listed below is included in this service information for diagnostic purposes. If all values are within the typical ranges below, refer to «Symptoms. Engine Controls Used in Diagnosis".
In the column headed "Data List", indicates where the parameter is located in the scan tool. The exact location of the data lists on a scanning tool can be determined by referring to the tool's instruction manual. Below is each of the terms included in the lists:
- All: This parameter is available in all data lists below.
- Eng: Engine data
- Ign: Ignition data
- EVAP: EVAP Data (gasoline vapor recovery systems)
- FT: Air-fuel ratio control data
- HO2S: Oxygen sensor data (HO2S)
- MF: Misfire Data
- TAC: Throttle Actuator Data (TAC)
- CMP: Camshaft Position Sensor Actuator Data
- ODM: ODM controller data
- CH: Refrigeration / HVAC data (HVAC)
- CT: Cruise control/traction data
- ET: Electrical/anti-theft data
- IPC: Instrument cluster data (IPC)
- IM: Intake manifold data (I/M)
- Trans: Transmission data
- FF: Status Record Data
- FR: Fault log data
List of data displayed by the scan tool
|
Scan Tool Parameter
|
Data List
|
Value range / unit rev. parameter
|
Typical Data Values
|
|
Engine idle / hot radiator hose / park or neutral / closed circuit / accessories off
|
|||
|
A/C Disengage 1-8 History (Air conditioner trip log 1-8)
|
CH
|
Reason for A/C Disengagement (Reason for turning off the air conditioner)
|
changes
|
|
A/C High Side Pressure Sensor (Pressure sensor in the high pressure circuit of the air conditioner)
|
CH
|
0 - 5 V
|
changes
|
|
A/C High Side Pressure Sensor (Pressure sensor in the high pressure circuit of the air conditioner)
|
CH
|
kPa (psi)
|
changes
|
|
A/C OFF for WOT (A/C off for wide open throttle)
|
CH
|
Not really
|
No
|
|
A/C Pressure Disable (A/C pressure off)
|
CH
|
Not really
|
No
|
|
A/C Relay Circuit Status (A/C relay circuit status)
|
CH, ODM
|
OK/Fault/Indeterminate (OK / Faulty / Undefined)
|
OK (Correctly)
|
|
A/C Relay (Air conditioning relay command)
|
Eng, MF, CH
|
on off.
|
Off
|
|
A/C Request Signal (Air conditioning request signal)
|
CH
|
Not really
|
No
|
|
APP Indicated Angle (Angular position of the accelerator pedal)
|
Eng, Ign, CMP, CT, EVAP, HO2S, FT, TAC, Trans
|
0–100%
|
0%
|
|
APP Sensor 1 (Sensor 1 APP)
|
TAC
|
0.9-4.5V
|
1 V
|
|
APP Sensor 2 (Sensor 2 APP)
|
TAC
|
0.40-2.25V
|
0.4 V
|
|
APP Sensor 1 and 2 (Sensors 1 and 2 APP)
|
TAC
|
Agree/Disagree (Compliance / Non-compliance)
|
Agree (Correspondence)
|
|
BARO
|
Eng, Ign, CMP, EVAP, HO2S, IM, FT, MF, TAC
|
65-104 kPa (8-16 psi)
|
changes with height
|
|
BARO
|
Eng, TAC, Trans
|
volt
|
changes
|
|
Brake Pedal Signal Status (Brake Pedal Signal Status)
|
CT, TAC, Trans
|
Valid/Invalid (Valid / Invalid)
|
Valid (Valid)
|
|
Calculated ECT – Closed Loop Fuel Control (Estimated ECT - closed loop fuel control)
|
CH
|
-39°C to +40°C (-38°F to +104°F)
|
40°C (104°F)
|
|
Calculated ECT - Thermostat Diagnosis (Estimated ECT - thermostat diagnostics)
|
CH
|
-39°C to +40°C (-38°F to +284°F)
|
89°C (192°F)
|
|
Calc. TWC Temp. (Calculated catalyst temperature TWC) Bank 1 and 2
|
FT, MF
|
Temperature
|
changes
|
|
Catalytic Converter Protection Active (Catalytic converter protection enabled)
|
FT, MF
|
Not really
|
No
|
|
Catalyst Monitor Complete This Ignition (Catalyst efficiency monitoring for this ignition cycle is complete)
|
IM
|
Not really
|
changes
|
|
Catalyst Monitor Enabled This Ignition (Catalyst efficiency monitoring in this ignition cycle is enabled)
|
IM
|
Not really
|
changes
|
|
CKP Resync Counter (Synchronization counter with CKP sensor)
|
Ign, MF
|
countdowns
|
0 counts
|
|
Component Monitor Complete This Ignition (Component control in this ignition cycle completed)
|
IM
|
Not really
|
changes
|
|
Component Monitor Enabled This Ignition (Component control for this ignition cycle is enabled)
|
IM
|
Not really
|
changes
|
|
Crank Request Signal (Start request)
|
ET
|
Not really
|
No
|
|
Cruise Control Active (Speed stabilizer included)
|
CT, IPC
|
Not really
|
No
|
|
Cruise Disengage 1-8 History (Trip Log 1-8 Speed Stabilizer)
|
CT
|
Cause
|
changes
|
|
Cruise Inhibit Reason (Reason for disabling the speed stabilizer)
|
CT
|
Cause
|
changes
|
|
Cruise On/Off Switch (Speed stabilizer on/off switch)
|
CT
|
on off.
|
Off
|
|
Cruise Resume/Accel. Switch (Positions "restore / speed up" speed stabilizer switch)
|
CT
|
on off.
|
Off
|
|
Cruise Set/Coast Switch (Positions "set / reduce" speed stabilizer switch)
|
CT
|
on off.
|
Off
|
|
Current Gear (Current transmission)
|
Eng, CT, ET, IPC, FT, MF
|
P/N/Reverse/1st -5th (parking / neutral / rear stroke / 1st - 5th gear)
|
P/N
|
|
Current Gear Signal (Current transmission signal)
|
ET, Trans
|
Valid/Invalid (Valid / Invalid)
|
Valid (Valid)
|
|
Cycles of Misfire Data (Number of misfire cycles)
|
MF
|
Counts 0-200
|
changes
|
|
Cylinder 1–6 Injector Circuit Status (Condition of the injector circuit for cylinders 1-6)
|
ODM
|
OK/Fault/Indeterminate (OK / Faulty / Undefined)
|
OK (Correctly)
|
|
Cylinder 1-6 Knock Retard (Reducing the ignition timing to eliminate detonation in cylinders 1-6)
|
Ign
|
Degree
|
0 degrees
|
|
Decel. Fuel Cutoff (Deceleration Fuel Cutoff)
|
Eng, FT, HO2S
|
Active/Inactive (On Off)
|
Inactive (Turned off)
|
|
Desired Exh. CMP Bank 1 or 2 (Required exhaust camshaft position for bank 1 or 2 cylinders)
|
CMP
|
Degree
|
changes
|
|
Desired HO2S Bank 1 or 2 Sensor 1 (Bank 1 or Bank 2 HO2S1 Required Reading)
|
HO2S
|
Lambda
|
changes
|
|
Required idling
|
Eng, EVAP, CMP, TAC
|
0-7000 rpm
|
650 rpm
|
|
Desired Int. CMP Bank 1 or 2 (Desired intake camshaft position for bank 1 or 2 cylinders)
|
CMP
|
degrees
|
changes
|
|
DTC Set This Ignition (DTC set on this ignition cycle)
|
Eng, Ign, CMP, EVAP, FT, HO2S, TAC
|
Not really
|
No
|
|
EC Ignition Relay Command (Command to the ignition relay of the engine management system)
|
Eng, TAC, ET
|
on off.
|
On
|
|
EC Ignition Relay Feedback Signal (Signal in the feedback circuit of the ignition relay of the engine management system)
|
Eng, TAC, ET
|
0-25.5V
|
12.0-14.5V
|
|
ECM Reset (Reset ECM)
|
Eng, Ign, EVAP, FT
|
Not really
|
No
|
|
ECT sensor
|
Eng, Ign, CMP, EVAP, HO2S, FF, FR, FT, MF, TAC, CH, IM, IPC, Trans
|
-39°C to +140°C (-38°F to +284°F)
|
changes
|
|
Engine load
|
Eng, Ign, CMP, EVAP, HO2S, FF, FR, FT, MF, TAC, CH, Trans
|
0-99%
|
0-5% on x.x. 3-7% at 2500 rpm
|
|
Engine Off EVAP Test Conditions Met (EVPS Test Conditions at Off engine fulfilled)
|
SUPS (Gasoline vapor recovery system)
|
Not really
|
changes
|
|
Engine Off Time (Engine Off Duration)
|
EVAP, IM
|
0:00:00 seconds
|
changes
|
|
Engine Oil Level Switch (Engine oil level sensor)
|
Eng, CMP, IPC
|
OK/Low (Good / Low)
|
OK (Correctly)
|
|
Engine Oil Life Remaining (Remaining engine oil life)
|
CMP, IPC
|
%
|
changes
|
|
Engine Oil Pressure Sensor (Engine oil pressure sensor)
|
IPC
|
OK, Low (Good / Low)
|
OK (Correctly)
|
|
Engine Oil Pressure Sensor (Engine oil pressure sensor)
|
Eng, MF, CMP, IPC
|
kPa (psi)
|
changes
|
|
Engine Oil Pressure Sensor (Engine oil pressure sensor)
|
IPC, MF
|
1-5V
|
changes
|
|
Engine run time
|
Eng, Ign, ET, EVAP, FT, HO2S, MF, TAC, CMP, ODM, CH, CT, IM
|
0:00:00
|
changes
|
|
Engine speed
|
ALL
|
rpm
|
575-700 rpm
|
|
EVAP Monitor Complete This Ignition (EVMS control in this ignition cycle is completed)
|
IM
|
Not really
|
changes
|
|
EVAP Monitor Enabled This Ignition (EVMS control is enabled in this ignition cycle)
|
IM
|
Not really
|
changes
|
|
EVAP Purge Solenoid Circuit Status (EVAP purge valve circuit status)
|
ODM
|
OK/Fault/Indeterminate (OK / Faulty / Undefined)
|
OK (Correctly)
|
|
EVAP Purge Solenoid Command (EVAP purge valve command).
|
Eng, EVAP, FT
|
0-100%
|
changes
|
|
EVAP Vent Solenoid Circuit Status (EVAP vent valve circuit status)
|
ODM
|
OK/Fault/Indeterminate (OK / Faulty / Undefined)
|
OK (Correctly)
|
|
EVAP Vent Solenoid Command (EVAP ventilation valve command)
|
Eng, EVAP, FT
|
Venting/Not Venting (Ventilation on / Ventilation off)
|
Venting (Ventilation on)
|
|
Exh. CMP Angle Bank 1 or 2 (Bank 1 or 2 exhaust camshaft angle)
|
Eng, CMP
|
degrees
|
changes
|
|
Exh. CMP Angle Bank 1 or 2 Variance (Difference in the angular position of the exhaust camshaft of cylinder bank 1 or 2)
|
CMP
|
degrees
|
changes
|
|
Exh. CMP Bank 1 or 2 Command (Bank 1 or 2 exhaust camshaft command)
|
CMP
|
0-99%
|
changes
|
|
Exh. CMP Solenoid Bn. 1 or 2 Circuit Status (Bank 1 or 2 exhaust camshaft valve circuit condition)
|
ODM
|
OK/Fault/Indeterminate (OK / Faulty / Undefined)
|
OK (Correctly)
|
|
Extended Travel Brake Pedal Switch (Brake Pedal Extended Travel Switch)
|
Eng, TAC, CT
|
Applied/Released (Pressed / Released)
|
Released (Released)
|
|
FC Relay 1 Circuit Status (Fan control relay 1 circuit status)
|
CH, ODM
|
OK/Fault/Indeterminate (OK / Faulty / Undefined)
|
OK (Correctly)
|
|
FC Relay 1 Command (Fan control relay 1 command)
|
CH
|
on off.
|
changes
|
|
FC Relay 2 and 3 Command (Relay command 2 and 3 fan control)
|
CH
|
on off.
|
changes
|
|
FC Relay 2 and 3 Circuit Status (Fan control relay 2 and 3 circuit status)
|
CH, ODM
|
OK/Fault/Indeterminate (OK / Faulty / Undefined)
|
OK (Correctly)
|
|
fuel level
|
SUPS (Gasoline vapor recovery system)
|
0–100%
|
changes
|
|
Fuel level sensor
|
EVAP, IPC
|
0 - 5 V
|
changes
|
|
Fuel Pump Relay Circuit Status (Fuel pump relay circuit status)
|
ODM
|
OK/Fault/Indeterminate (OK / Faulty / Undefined)
|
OK (Correctly)
|
|
Fuel Pump Relay Command (Fuel pump relay command)
|
Eng
|
on off.
|
On
|
|
Fuel Tank Level Remaining (Available fuel level in the fuel tank)
|
Eng, EVAP, IPC, MF, IM
|
Liter/Gallon (liter/gallon)
|
changes
|
|
Fuel Tank Pressure Sensor (Fuel tank pressure sensor)
|
SUPS (Gasoline vapor recovery system)
|
in H2O/mmHg st
|
changes
|
|
Fuel Tank Pressure Sensor (Fuel tank pressure sensor)
|
Eng, EVAP
|
0-5 volts
|
changes
|
|
Fuel Tank Rated Capacity (Rated tank capacity)
|
SUPS (Gasoline vapor recovery system)
|
Liter/Gallon (liter/gallon)
|
17.8 gallons (67.3 liters)
|
|
Fuel Trim Learn (Fuel trim learning)
|
Eng, EVAP, FT, HO2S
|
Enabled/Disabled (On Off)
|
Enabled (Included)
|
|
GEN L-Terminal Signal Command (Generator L-terminal command)
|
ET
|
0-100%
|
changes
|
|
Generator F-Terminal Signal (Alternator F-Terminal Signal)
|
ET
|
0-100%
|
changes
|
|
HO2S Bank 1 or 2 Sensor 1 (Bank 1 or 2 HO2S sensor 1)
|
Eng, EVAP, FT, HO2S
|
0 - 1006 mV
|
Variable 400 - 700 mV
|
|
HO2S Bank 1 or 2 Sensor 1 (Bank 1 or 2 HO2S sensor 1)
|
Eng, FT, HO2S
|
0 - 1006 mV
|
Variable 400 - 700 mV
|
|
HO2S Heater Monitor Complete This Ignition (HO2S heater control in this ignition cycle completed)
|
IM
|
Not really
|
changes
|
|
HO2S Heater Monitor Enabled This Ignition (HO2S heater control on this ignition cycle)
|
IM
|
Not really
|
changes
|
|
HO2S Htr. Bn. 1 or 2 Sensor 1 or 2 Circuit Status (Bank 1 or Bank 2 Sensor Heater Circuit Status)
|
ODM
|
OK/Fault/Indeterminate (OK / Faulty / Undefined)
|
OK (Correctly)
|
|
HO2S Htr. Bn. 1 or 2 Sensor 1 Command (Bank 1 or 2 sensor heater command)
|
HO2S
|
0-99%
|
changes
|
|
HO2S/O2S Monitor Complete This Ignition (HO2S/O2S control is complete for this ignition cycle)
|
IM
|
Not really
|
changes
|
|
HO2S/O2S Monitor Enabled This Ignition (HO2S/O2S control on this ignition cycle)
|
IM
|
Not really
|
changes
|
|
HO2S Sensing Element Bn. 1 or 2 Sensor 1 (Bank 1 or 2 HO2S Sensor 1)
|
HO2S
|
Ohm
|
20 - 300 Ohm depending on temperature
|
|
HO2S Sensing Element Bn. 1 or 2 Sensor 2 (HO2S Sensor 2 Bank 1 or 2)
|
HO2S
|
Ohm
|
20 - 300 Ohm depending on temperature
|
|
IAT sensor
|
Eng, Ign, EVAP, FT, FF, FR, HO2S, IM, TAC, CMP, CH, Trans
|
Changes from -39°C to +140°C (-38°F to +284°F)
|
changes
|
|
Ignition 0 Signal (Ignition signal 0)
|
Eng, Ign, EVAP, TAC, ET, IM, IPC, Trans
|
on off.
|
On
|
|
Ignition 1 Signal (Ignition signal 1)
|
Eng, Ign, EVAP, FT, MF, TAC, CMP, ET, IM, IPC, Trans
|
on off.
|
On
|
|
IMRC Solenoid Circuit Status (IMRC valve circuit status)
|
ODM
|
OK/Fault/Indeterminate (OK / Faulty / Undefined)
|
OK (Correctly)
|
|
IMRC Solenoid Command (IMRC valve command)
|
Eng
|
on off.
|
Off
|
|
Initial Brake Apply Signal (Initial brake pedal input signal)
|
TAC, CT
|
Applied/Released (Pressed / Released)
|
Released (Released)
|
|
Injector 1-6 Command (Injector team 1-6)
|
FT, MF
|
msec
|
changes
|
|
Injector PWM Bank 1 or 2 Average (Medium PWM injectors for cylinder banks 1 or 2)
|
FT, MF
|
0 - 9 ms
|
4.6-5.4 ms
|
|
Int. CMP Angle Bank 1 or 2 (Bank 1 or 2 intake camshaft angle)
|
Eng, CMP
|
degrees
|
changes
|
|
Int. CMP Angle Bank 1 or 2 Variance (Inlet camshaft angular position difference, cylinder bank 1 or 2)
|
CMP
|
degrees
|
changes
|
|
Int. CMP Bank 1 or 2 Command (Bank 1 or 2 intake camshaft command)
|
CMP
|
0–99%
|
changes
|
|
Int. CMP Solenoid Bn. 1 or 2 Circuit Status (Bank 1 or 2 intake camshaft valve circuit condition)
|
ODM
|
OK/Fault/Indeterminate (OK / Faulty / Undefined)
|
OK (Correctly)
|
|
Knock Retard (Reducing ignition timing to eliminate detonation)
|
Eng, Ign, CH
|
degrees
|
changes
|
|
KS 1 or 2 Signal (Signal KS 1 or 2)
|
Ign
|
volt
|
changes
|
|
Loop Status Bn. 1 or 2 Sen. 1 (Sensor loop status 1 cylinder bank 1 or 2)
|
Eng, EVAP, FT, HO2S, FF, FR
|
Open Loop/Closed Loop (Open Loop / Closed Loop)
|
closed circuit
|
|
Loop Status Bn. 1 or 2 Sen. 2 (Sensor loop status 2 cylinder bank 1 or 2)
|
Eng, EVAP, FT, HO2S, FF, FR
|
Open Loop/Closed Loop (Open Loop / Closed Loop)
|
closed circuit
|
|
LT FT Bn. 1 or Bn. 2 Cruise/Accel. (Amendment long-term adjustment series 1 or 2 post. speed/acceleration)
|
Eng, EVAP, FT, HO2S
|
-100% to +100%
|
0%
|
|
LT FT Bn. 1 or Bn. 2 Idle/Decel. (Long-term adjustment correction row 1 or 2 cold / braking)
|
Eng, EVAP, FT, HO2S
|
-100% to +100%
|
0%
|
|
MAF Sensor (MAF sensor)
|
Eng, Ign, FT, HO2S, MF, TAC, CMP, FF, FR, Trans
|
0 - 655 g/s
|
3.4-6.3 g/s
|
|
MAF Sensor (MAF sensor)
|
Eng, Ign, EVAP, FT, HO2S, MF, TAC, CMP, Trans
|
0 - 5 V
|
0.9-1.7 V
|
|
MIL Circuit Status (MIL Circuit Status)
|
IPC, ODM
|
OK/Fault/Indeterminate (OK / Faulty / Undefined)
|
OK (Correctly)
|
|
MIL Command (MIL Team)
|
Eng, EVAP, IM, IPC, Trans
|
on off.
|
Off
|
|
Mileage Since DTC Cleared (Mileage since DTC reset)
|
FF, FR
|
km - miles (km - miles)
|
changes
|
|
Mileage Since First Failure (Mileage since first failure)
|
FF, FR
|
km - miles (km - miles)
|
changes
|
|
Mileage Since Last Failure (Mileage since last failure)
|
FF, FR
|
km - miles (km - miles)
|
changes
|
|
Mileage Since MIL Requested (Mileage after applying to MIL)
|
FF, FR
|
km - miles (km - miles)
|
changes
|
|
Misfire Current Cyl. 1-6 (Current misfire cyl. 1-6)
|
MF
|
0 - 255 counts
|
0
|
|
Misfire History Cyl. 1-6 (Misfire history cyl. 1-6)
|
MF
|
0 - 65535 counts
|
0
|
|
Misfire Monitor Complete This Ignition (Misfire control for this ignition cycle is complete)
|
IM
|
Not really
|
changes
|
|
Misfire Monitor Enabled This Ignition (Misfire control is on in this ignition cycle)
|
IM
|
Not really
|
changes
|
|
Moderate Brake Apply Signal (Moderate brake pedal warning)
|
TAC, CT
|
Applied/Released (Pressed / Released)
|
Released (Released)
|
|
PNP Switch (Switch "parking/neutral")
|
Eng, ET, Trans
|
Park/Neutral/In Gear (parking / neutral / gear)
|
P/N
|
|
power enrichment
|
Eng, FT, HO2S, MF
|
Active/Inactive (On Off)
|
Inactive (Turned off)
|
|
PRNDL (PRNDL range)
|
Trans
|
D1, D2, D3, D4, D5, Neutral, Park, Reverse (gears 1, 2, 3, 4, 5, neutral, park, reverse)
|
Park/Neutral (parking / neutral)
|
|
Reduced Engine Power (Reduced engine power)
|
Eng, TAC, IP
|
Active/Inactive (On Off)
|
Inactive (Turned off)
|
|
Short Term FT Bank 1 or Bank 2 (Bank 1 or 2 short term fuel trim)
|
Eng, EVAP, FT, HO2S, FF, FR
|
-25% to +25%
|
-3% to +3%
|
|
Spark (Spark)
|
Eng, Ign, FT, HO2S, MF, CH, CT, FF, FR
|
From -20 to +40 degrees
|
2-10 degrees
|
|
Starter Relay Circuit Status (Starter relay circuit status)
|
ET, ODM
|
OK/Fault/Indeterminate (OK / Faulty / Undefined)
|
OK (Correctly)
|
|
Starter Relay Command (Starter relay command)
|
ET
|
on off.
|
Off
|
|
Start Up ECT (Launcher ECT)
|
EVAP, FT, HO2S, CH, IM
|
-39°C to +140°C (-38°F to +284°F)
|
changes
|
|
Start Up IAT (Launcher IAT)
|
EVAP, FT, HO2S, CH, IM
|
-39°C to +140°C (-38°F to +284°F)
|
changes
|
|
Stop Lamp Pedal Switch (Stop Pedal Switch)
|
Eng, CT, TAC
|
Applied/Released (Pressed / Released)
|
Released (Released)
|
|
System Power Mode (System Power Mode)
|
EVAP, TAC, ET
|
Off, Accessory, RAP, Run, or Crank Request (off, accessories, RAP mode, drive, start)
|
Run (movement)
|
|
TAC System Learned Counts (TAC system learning steps)
|
TAC
|
0-11 counts
|
0
|
|
TCC Brake Pedal Switch (Brake Pedal TCC Switch)
|
CT, IM, Trans
|
Applied/Released (Pressed / Released)
|
Released (Released)
|
|
TCC Status (TCC Status)
|
Eng, MF, Trans
|
Locked/Unlocked (Locked / Unlocked)
|
Unlocked (Unlocked)
|
|
TCM Requested Torque (Required TCM Torque)
|
CT, TAC, Trans
|
N•m/lb ft (N·m / lb ft)
|
changes
|
|
TCM Torque Increase (TCM Torque Boost)
|
CT, TAC, Trans
|
Not really
|
No
|
|
TCS Torque Increase (TCS torque increase)
|
CT, TAC
|
Not really
|
No
|
|
TCM Torque Reduction Active (TCM Torque Reduction Active)
|
CT, TAC, Trans
|
Not really
|
No
|
|
TCS Torque Reduction Active (TCS torque reduction active)
|
CT, TAC
|
Not really
|
No
|
|
Torque Delivered Signal (Received torque signal)
|
FT, TAC, CT
|
0-100%
|
changes
|
|
Torque Request Signal (Desired torque signal)
|
FT, TAC, CT
|
0-100%
|
90-98%
|
|
Total Fuel Trim Avg. Bank 1 and 2 (Average total trim value for bank 1 or 2)
|
EVAP, FT, HO2S
|
-100 to +100%
|
changes
|
|
Total Misfire Count (Total number of misfires)
|
MF
|
countdowns
|
0
|
|
TP Desired Angle (Required TP angle)
|
Eng, EVAP, TAC, CT
|
0-100%
|
changes
|
|
TP Indicated Angle (Indicator angle TP)
|
Eng, Ign, EVAP, FT, HO2S, MF, TAC, CMP, CT, FF, FR, Trans
|
0-100%
|
changes
|
|
TP Sensor 1 (TP sensor 1)
|
TAC
|
0 - 5 V
|
0.5-0.8V
|
|
TP Sensor 1 Learned Minimum (Fitted sensor minimum 1 TP)
|
TAC
|
0 - 5 V
|
0-0.6V
|
|
TP Sensor 2 (TP 2 sensor)
|
TAC
|
0 - 5 V
|
4.7 - 4.1 V
|
|
TP Sensor 2 Learned Minimum (Matched minimum sensor 2 TP)
|
TAC
|
0 - 5 V
|
5 - 3.7 V
|
|
TP Sensors 1 and 2 (TP sensors 1 and 2)
|
TAC
|
Agree/Disagree (Compliance / Non-compliance)
|
Agree (Correspondence)
|
|
Traction Control Status (Traction control status)
|
TAC, CT
|
Active/Inactive (On Off)
|
Inactive (Turned off)
|
|
Transmission Gear Selector Signal (Gear selector signal)
|
Trans
|
Valid/Invalid (Valid / Invalid)
|
Valid (Valid)
|
|
Vehicle Security Status (Status of the car's security system)
|
ET, IPC
|
Password Learning, VTD Fail-Enable, Auto Learn Timer, Fuel Disable Until Ign Off, Fuel Disable Timeout, and Fuel Continued (Password definition, burglar alarm off-on, fuel off before ignition is turned on, fuel off time limit, fuel on)
|
Fuel Continued (continuation of fuel supply)
|
|
vehicle speed sensor
|
Eng, Ign, EVAP, FT, HO2S, MF, TAC, CMP, CH, CT, IM, IPC, FF, FR, Trans
|
km/h
mph
|
changes
|
|
Volumetric Efficiency (volumetric efficiency)
|
Eng, Ign, EVAP, FT, HO2S, MF, TAC, CMP, CH, Trans
|
0-100%
|
5-25% - at idle and at 2500 rpm
|
Scan Tool Data Definitions
The scan tool data definition list contains a brief description of all engine related parameters that can be retrieved by the scan tool. The list is organized alphabetically. A particular parameter may appear in any of the data lists. Some parameters may appear more than once or appear in more than one list, being part of a group of certain related parameters.
A/C Disengage 1-8 History (Air conditioner shutdowns 1-8). The parameter indicates the last 8 A/C compressor trips, in sequence from 1st to 8th, with the 8th trip being the most recent. There are approximately 8 possible reasons for the A/C compressor to shut down.
A/C High Side Pressure Sensor (Pressure sensor in the high pressure circuit of the air conditioner). The parameter indicates the voltage value received by the controller from the signal circuit of the pressure sensor located in the high pressure circuit of the air conditioner.
A/C High Side Pressure Sensor (Pressure sensor in the high pressure circuit of the air conditioner). The parameter indicates the pressure value received by the controller from the signal circuit of the pressure sensor located in the high pressure circuit of the air conditioner.
A/C OFF for WOT (A/C off for wide open throttle) This parameter indicates whether the controller is commanding the A/C compressor clutch relay to turn off at wide open throttle (WOT).
A/C Pressure Disable (A/C pressure off). This parameter indicates if the air conditioner pressure, as determined by the controller, is outside the range for normal operation,
A/C Relay Circuit Status (A/C relay circuit status). This parameter indicates the state of the A/C clutch relay control circuit. This parameter is set to Fault (out of order), if the air conditioning clutch control circuit is open, shorted to "mass" or on a live wire. The parameter is Indeterminate (Undefined) until a command is received through the chain "turn on". This parameter may not change if a scan tool is used to turn on the A/C relay.
A/C Relay Command (Air conditioning relay command). This parameter indicates the state of the A/C clutch relay control circuit as commanded by the controller.
A/C Request Signal (Air conditioning request signal). This parameter indicates the state of input into the controller of requests from the HVAC controls.
APP Indicated Angle (Angular position of the accelerator pedal) This parameter indicates the angle at which the accelerator pedal is located, calculated by the controller from the signals from the APP sensors.
APP Sensor 1 (Sensor 1 APP). This parameter indicates the actual voltage on the accelerator pedal position sensor 1 signal circuit (APP), measured by the controller.
APP Sensor 2 (Sensor 2 APP). This parameter indicates the actual voltage on the accelerator pedal position sensor 2 signal circuit (APP), measured by the controller.
APP Sensor 1 and 2 (Sensors 1 and 2 APP). This setting matters "Disagree" (Mismatch), if the controller detects that the APP sensor 1 signal voltage and the APP sensor 2 signal voltage is not in the correct relationship. Scan Tool Shows Value "Agree" (Correspondence) under normal operating conditions.
BARO. This parameter indicates the barometric pressure. Barometric pressure is used by the controller to control fuel delivery to compensate for the effects of changes in altitude.
Brake Pedal Signal Status (Brake Pedal Signal Status). This parameter contains the brake signal in the form of serial data from the electronic brake and traction control unit (EBTCM).
Calculated ECT – Closed Loop Fuel Control (Estimated ECT - closed loop fuel control) This parameter indicates the calculated temperature that the controller determines based on engine intake air, coolant temperature, and ambient air temperature. If the actual coolant temperature does not reach this calculated value within the specified time, a DTC will be set.
Calculated ECT – Thermostat Diagnosis (Estimated ECT - thermostat diagnostics). This parameter indicates the calculated temperature that the controller determines based on engine intake air, coolant temperature, and ambient air temperature. If the actual coolant temperature does not reach this calculated value within the specified time, a DTC will be set.
Calc. TWC Temp. Bank 1 or Bank 2 (Estimated temp. catalytic converter, bank 1 or 2). This parameter indicates the temperature of the catalytic converter as calculated by the controller.
Catalytic Converter Protection Active (Catalytic converter protection enabled) This parameter indicates if the controller has commanded to protect the catalytic converter
Catalyst Monitor Complete This Ignition (Catalyst efficiency monitoring for this ignition cycle is complete) This parameter indicates whether control is completed in the current motor/control cycle.
Catalyst Monitor Enabled This Ignition (Catalyst efficiency monitoring in this ignition cycle is enabled) This parameter indicates if supervision is enabled in the current motor/control cycle.
CKP Resync Counter (Synchronization counter with CKP sensor). This parameter indicates how many times the controller has synchronized with the crankshaft position sensor.
Component Monitor Complete This Ignition (Component control in this ignition cycle completed). This parameter indicates if the diagnostic control is completed in the current engine/monitoring cycle.
Component Monitor Enabled This Ignition (Component control for this ignition cycle is enabled). This parameter indicates if diagnostic monitoring is enabled in the current engine/monitoring cycle.
Crank Request (Start request). This parameter indicates if the ignition key has been turned to the start position at which the controller should actuate the starter relay.
Cruise Control Active (Speed stabilizer included). This parameter indicates the state of the cruise control system as determined by the controller.
Cruise Disengage 1-8 History (Trips 1-8 speed stabilizer). The parameter indicates the last 8 speed stabilizer trips, in sequence from 1st to 8th, with the 8th trip being the most recent. There are approximately 33 possible reasons for the speed stabilizer to trip.
Cruise Inhibit Reason (Reason for disabling the speed stabilizer). This parameter specifies the reason why the speed stabilizer was disabled.
Cruise On/Off Switch (Speed stabilizer on/off switch). This parameter specifies the signal from the stabilizer on/off switch to the input of the controller.
Cruise Resume/Accel. Switch (Positions "restore / speed up" speed stabilizer switch). This parameter indicates the position status signal received by the controller "restore / speed up" speed stabilizer switch.
Cruise Set/Coast Switch (Positions "set / reduce" speed stabilizer switch) This parameter indicates the position status signal received by the controller "set / reduce" speed stabilizer switch.
Current Gear (Current transmission). This parameter indicates the gear engaged by the command of the transmission controller.
Current Gear Signal (Current transmission signal). This parameter is set to Invalid (Invalid), if the serial data from the transmission controller is not valid.
Cycles of Misfire Data (Number of misfire cycles). This parameter indicates the number of misfire checks per 200 engine revolutions.
Cylinder 1–6 Injector Circuit Status (Condition of the injector circuit for cylinders 1-6). This parameter indicates the state of the fuel injector control circuit. This parameter is set to Fault (out of order), if the fuel injector control circuit is open, shorted to "mass" or on a live wire. This option is displayed as Interterminate (Undefined) until the control circuit is turned on.
Cylinder 1-6 Knock Retard (Reducing the ignition timing to eliminate detonation in cylinders 1-6) This parameter indicates the reduction in ignition timing commanded by the controller for cylinders 1-6 in order to eliminate detonation. Each cylinder is controlled separately using signals from both knock sensors.
Decel. Fuel Cutoff (Deceleration Fuel Cutoff). This parameter indicates the controller mode state used to turn off the fuel injectors and EVAP canister purge valve under certain deceleration conditions.
Desired Exh. CMP Bank 1 or 2 (Required exhaust camshaft position for bank 1 or 2 cylinders). This parameter indicates the desired exhaust camshaft angle commanded by the controller.
Desired HO2S Bank 1 or 2 Sensor 1 (Bank 1 or Bank 2 HO2S Sensor 1 Desired Reading) This parameter indicates the desired lambda value for the oxygen sensor, given by the controller command.
Desired Idle Speed (Required idling). This parameter indicates the desired idle speed given by the controller command.
Desired Int. CMP Bank 1 or 2 (Desired intake camshaft position for bank 1 or 2 cylinders). This parameter indicates the desired inlet camshaft angle as commanded by the controller.
DTC Set This Ignition (DTC set on this ignition cycle). This parameter is set to Yes (Yes), if a DTC is set in the current ignition cycle.
EC Ignition Relay Command (Command to the ignition relay of the engine management system). This parameter indicates the state of the controller power relay control circuit as specified by the controller command.
EC Ignition Relay Feedback Signal (Signal in the feedback circuit of the ignition relay of the engine management system). This parameter indicates the voltage of the ignition relay of the engine management system, available at the controller contact.
ECM Reset (Reset ECM). This parameter is set to Yes if the controller has reset internally. Under normal operating conditions, the scan tool displays NO.
ECT Sensor (ECT sensor). This parameter indicates the temperature of the engine coolant, determined from the data received by the controller from the coolant temperature sensor (ECT).
Engine Load (Engine load). This parameter indicates the estimated load on the engine in percent, determined from the data received by the controller from various engine sensors.
Engine Off EVAP Test Conditions Met (EVPS Test Conditions at Off engine fulfilled). This parameter is set to Yes if the conditions required for an EVIS diagnostic with the engine off are met.
Engine Off Time (Engine Off Duration). This parameter indicates the length of time that has elapsed since the last engine shutdown.
Engine Oil Level Switch (Engine oil level sensor). This parameter indicates whether the engine oil level is within the required limits, as determined by the controller based on information received from the engine oil level sensor.
Engine Oil Life Remaining (Remaining engine oil life). This parameter indicates the percentage of remaining engine oil life. The controller calculates engine oil life by continuously monitoring engine load, coolant temperature and engine speed.
Engine Oil Pressure Sensor (Engine oil pressure sensor). This parameter is OK if the engine oil pressure is within the required limits. If the controller detects that the oil pressure is out of range, the scan tool will display Low.
Engine Oil Pressure Sensor (Engine oil pressure sensor). This parameter indicates the engine oil pressure.
Engine Oil Pressure Sensor (Engine oil pressure sensor). This parameter indicates the voltage supplied to the controller from the engine oil pressure sensor (EOP).
Engine Run Time (Engine run time). This parameter indicates the time elapsed since the motor was started.
Engine Speed (Engine speed). This parameter indicates the number of revolutions of the crankshaft of the engine, obtained from the information of the crankshaft position sensor (CKP). If the crankshaft position sensor DTC is set, the ECM will calculate engine RPM from one of the camshaft position sensors (CMP).
EVAP Monitor Complete This Ignition (EVMS control in this ignition cycle is completed). This parameter indicates if the diagnostic control is completed in the current engine/monitoring cycle.
EVAP Monitor Enabled This Ignition (EVMS control is enabled in this ignition cycle). This parameter indicates if diagnostic monitoring is enabled in the current engine/monitoring cycle.
EVAP Purge Solenoid Circuit Status (EVAP purge valve circuit status) This parameter indicates the status of the EVAP purge valve control circuit. This parameter is set to Fault (out of order), if the control circuit of the EVAP canister purge valve is open, shorted to "mass" or is energized. This option is displayed as Interterminate (Undefined) until the circuit is turned on.
EVAP Vent Solenoid Circuit Status (EVAP vent valve circuit status). This parameter indicates the state of the EVAP vent valve control circuit. This parameter is set to Fault (out of order), if the EVAP ventilation valve control circuit is open, shorted to "mass" or on a live wire. The parameter is Indeterminate (Undefined) until a command is received through the chain "turn on". This setting may not change if a scan tool is used to turn on the EVAP vent valve.
EVAP Vent Solenoid Command (EVAP ventilation valve command). This parameter indicates the state of the EVAP vent valve control circuit as commanded by the controller. Exh.
CMP Angle Bank 1 or 2 (Bank 1 or 2 exhaust camshaft angle). This parameter indicates the state of the controller power relay control circuit as specified by the controller command.
Exh. CMP Angle Bank 1 or 2 Variance (Difference in the angular position of the exhaust camshaft of cylinder bank 1 or 2). This parameter indicates in degrees the difference between the desired and actual exhaust camshaft angular position.
Exh. CMP Bank 1 or 2 Command (Bank 1 or 2 exhaust camshaft command). This parameter indicates the angular position as a percentage of the maximum value for the exhaust camshaft, given by the controller command.
Exh. CMP Solenoid Bn. 1 or 2 Circuit Status (Bank 1 or 2 exhaust camshaft valve circuit condition) This parameter indicates the state of the exhaust camshaft timing control solenoid control circuit. This parameter is set to Fault (out of order), if the camshaft timing control solenoid control circuit is open, shorted to "mass" or on a live wire. This option is displayed as Interterminate (Undefined) until the circuit is turned on.
Extended Travel Brake Pedal Switch (Brake Pedal Extended Travel Switch). This parameter indicates the state of the brake pedal as determined by the controller from the position of the brake pedal extended travel switch.
FC Relay 1 Circuit Status (Fan control relay 1 circuit status). This parameter indicates the state of the fan relay control circuit. This parameter is set to Fault (out of order), if the fan relay control circuit is open, shorted to "mass" or on a live wire. This option is displayed as Interterminate (Undefined) until the circuit is turned on.
FC Relay 1 Command (Fan control relay 1 command). This parameter indicates the state of the fan control circuit as set by the controller command.
FC Relay 2 and 3 Command (Relay command 2 and 3 fan control). This parameter indicates the state of the fan control circuit as set by the controller command.
FC Relay 2 and 3 Circuit Status (Fan control relay 2 and 3 circuit status). This parameter indicates the state of the fan relay control circuit. This parameter is set to Fault (out of order), if the fan relay control circuit is open, shorted to "mass" or on a live wire. This option is displayed as Interterminate (Undefined) until the relay control circuit is turned on.
Fuel Level (Fuel level). This parameter indicates the amount of fuel in the fuel tank calculated by the controller as a percentage of the maximum value.
Fuel Level Sensor Left Tank (Secondary) (Left sensor (additional) fuel level in the tank). This parameter indicates the voltage supplied to the controller from the left, or additional, fuel level sensor.
Fuel Level Sensor Right Tank (basic) (Right sensor (basic) fuel level in the tank). This parameter indicates the voltage received by the controller from the right or main fuel level sensor.
Fuel Pump Relay Circuit Status (Fuel pump relay circuit status). This parameter indicates the state of the fuel pump relay control circuit. This parameter is set to Fault (out of order), if the fuel pump relay control circuit is open, shorted to "mass" or on a live wire. This option is displayed as Interterminate (Undefined) until the circuit is turned on.
Fuel Pump Relay Command (Fuel pump relay command). This parameter indicates the state of the fuel pump relay control circuit as commanded by the controller.
Fuel Tank Level Remaining (Available fuel level in the fuel tank). This parameter indicates the amount of fuel in liters/gallons available in the fuel tank as determined by the controller from information received from the left and right fuel level sensors.
Fuel Tank Pressure Sensor (Fuel tank pressure sensor). This parameter indicates the pressure/vacuum in the fuel tank. A negative value indicates vacuum, and a positive value indicates pressure.
Fuel Tank Pressure Sensor (Fuel tank pressure sensor). This parameter indicates the voltage supplied to the controller from the fuel tank pressure sensor (FTP).
Fuel Tank Rated Capacity (Rated tank capacity). This parameter indicates the capacity of the fuel tank in liters or gallons.
Fuel Trim Learn (Fuel trim learning). This parameter is set to Enabled (Allowed), if the conditions are sufficient to enable the correction mode in the long-term fuel trim. This indicates that the long-term fuel trim is adapted based on long-acting short-term fuel trims. If the scan tool indicates Disabled (Turned off), then in this case the long-term fuel trim does not respond to changes in the short-term trim.
GEN L-Terminal Command (Generator L-terminal command). This parameter indicates the state of the generator voltage regulator as commanded by the controller.
Generator F-Terminal Signal (Alternator F-Terminal Signal). This parameter specifies the duration of the generator on, given by the controller command. The larger this percentage, the higher the output power of the generator.
HO2S Bank 1 or 2 Sensor 1 (Bank 1 or 2 HO2S sensor 1). This parameter indicates the output voltage from the oxygen sensor to the controller. A low voltage indicates an exhaust gas with a high oxygen content, and a high voltage indicates an exhaust gas with a low oxygen content.
HO2S Bank 1 or 2 Sensor 2 (Bank 1 or 2 HO2S sensor 2). This parameter indicates the output voltage from the oxygen sensor to the controller. A low voltage indicates an exhaust gas with a high oxygen content, and a high voltage indicates an exhaust gas with a low oxygen content.
HO2S Heater Monitor Complete This Ignition (HO2S heater control in this ignition cycle completed). This parameter indicates if the diagnostic control is completed in the current engine/monitoring cycle.
HO2S Heater Monitor Enabled This Ignition (HO2S heater control on this ignition cycle). This parameter indicates if diagnostic monitoring is enabled in the current engine/monitoring cycle.
HO2S Htr. Bn. 1 or 2 Sensor 1 or 2 Circuit Status (Bank 1 or Bank 2 Sensor Heater Circuit Status). This parameter indicates the state of the oxygen sensor heater control circuit. This parameter is set to Fault (out of order), if the oxygen sensor heater control circuit is open, shorted to "mass" or on a live wire. This option is displayed as Interterminate (Undefined) until the circuit is turned on.
HO2S Htr. Bn. 1 or 2 Sensor 1 Command (Bank 1 or 2 sensor heater command). This parameter indicates the state of the heater control circuit as set by the controller command.
HO2S/O2S Monitor Complete This Ignition (HO2S/O2S control is complete for this ignition cycle). This parameter indicates if the diagnostic control is completed in the current engine/monitoring cycle.
HO2S/O2S Monitor Enabled This Ignition (HO2S/O2S control on this ignition cycle). This parameter indicates if diagnostic monitoring is enabled in the current engine/monitoring cycle.
HO2S Sensing Element Bn. 1 or 2 Sensor 1 or 2 (HO2S Sensor Bank 1 or 2 Bank 1 or 2). The sensors are usually adjustable in the range of 20 - 300 ohms depending on the temperature.
IAT Sensor (IAT sensor). This parameter indicates the temperature of the air entering the air intake system, determined from information received by the controller from the intake air temperature sensor (IAT).
Ignition 0 Signal (Ignition signal 0). This parameter is set to On (On), if the controller detects voltage at input pin 0 of the ignition.
Ignition 1 Signal (Ignition signal 1). This parameter is set to On (On), if the controller detects voltage at ignition input pin 1.
IMRC Solenoid Circuit Status (IMRC valve circuit status). This parameter indicates the state of the intake manifold control circuit (IMRC). This parameter is set to Fault (out of order), if the IMRC control circuit is open, closed to "mass" or on a live wire. The parameter is Indeterminate (Undefined) until a command is received through the chain "turn on". This setting may not change if a scan tool is used to turn on the IMRC valve.
IMRC Solenoid Command (IMRC valve command). This parameter indicates the state of the IMRC valve as set by the controller command.
Initial Brake Apply Signal (Initial brake pedal input signal). This parameter indicates the state of the brake pedal, information about which is transmitted through the serial data circuit from the electronic brake control unit (EBCM).
Injector 1-6 Command (Injector team 1-6). This parameter specifies the duration of the fuel injector turn-on period or the pulse width specified by the controller command.
Injector PWM Bank 1 or 2 Average (Medium PWM injectors for cylinder banks 1 or 2). This parameter indicates the average pulse width for the fuel injectors for each engine bank as determined by the controller.
Int. CMP Angle Bank 1 or 2 (Bank 1 or 2 intake camshaft angle)This parameter indicates the actual angular position in degrees of the intake camshaft.
Int. CMP Angle Bank 1 or 2 Variance (Inlet camshaft angular position difference, cylinder bank 1 or 2). This parameter indicates in degrees the difference between the desired and actual intake camshaft angular position.
Int. CMP Bank 1 or 2 Command (Bank 1 or 2 intake camshaft command). This parameter indicates the angular position as a percentage of the maximum value for the intake camshaft, given by the controller command.
Int. CMP Solenoid Bn. 1 or 2 Circuit Status (Bank 1 or 2 intake camshaft valve circuit condition). This parameter indicates the state of the intake camshaft timing control solenoid control circuit. This parameter is set to Fault (out of order), if the camshaft timing control solenoid control circuit is open, shorted to "mass" or on a live wire. The parameter is Indeterminate (Undefined) until a command is received through the chain "turn on". This parameter may not change if a scan tool is used to turn on the camshaft timing actuator valve.
Knock Retard (Reducing ignition timing to eliminate detonation). This parameter indicates the amount by which the controller reduces the ignition timing in response to signals from the knock sensors.
KS 1 or 2 Signal (Signal KS 1 or 2). This parameter indicates the voltage supplied to the controller from the knock sensor (KS).
Loop Status Bn. 1 or 2 Sen. 1 (Sensor loop status 1 cylinder bank 1 or 2). This parameter indicates the state of the fuel supply system as set by the controller command. Operation in closed loop mode means that the controller controls the fuel supply using signals from the oxygen sensors coming to it. When operating in open loop mode, the controller does not take into account the signals from the oxygen sensors and determines how much fuel should be supplied using signals from other sensors.
Loop Status Bn. 1 or 2 Sen. 2 (Sensor loop status 2 cylinder bank 1 or 2). This parameter indicates the status of the diagnostic oxygen sensors (with electric heater), specified by the controller command. The diagnostic oxygen sensors do not operate in closed loop mode until the ECM determines that they are ready for operation.
LT FT Bn. 1 or Bn. 2 Cruise/Accel. (Amendment long-term adjustment series 1 or 2 post. speed/acceleration). This parameter indicates the long-term fuel trim correction set by the controller for bank 1 or 2 for constant speed and acceleration conditions.
LT FT Bn. 1 or Bn. 2 Idle/Decel. (Long-term adjustment correction row 1 or 2 cold / braking). This parameter indicates the long-term fuel trim correction applied by the controller for bank 1 or 2 for engine idling or braking conditions.
MAF Sensor (MAF sensor). This parameter indicates the measured air flow to the engine in all operating modes.
MAF Sensor (MAF sensor). This parameter indicates the voltage of the signal received by the controller from the mass air flow sensor (MAF).
MIL Circuit Status (MIL Circuit Status). This parameter indicates the status of the MIL control circuit. This parameter is set to Fault (out of order), if the MIL control circuit is open, shorted to "mass" or on a live wire. This option is displayed as Interterminate (Undefined) until the circuit is turned on.
MIL Command (MIL Team). This parameter indicates the status of the MIL control circuit as commanded by the controller.
Mileage Since DTC Cleared (Mileage since DTC reset). This parameter indicates the mileage elapsed since any DTC was cleared from the controller memory (DTC).
Mileage Since First Failure (Mileage since first failure). This parameter indicates the distance traveled since the first emission fault.
Mileage Since Last Failure (Mileage since last failure). This parameter indicates the distance traveled since the last emission fault.
Mileage Since MIL Requested (Mileage after applying to MIL). This parameter indicates the mileage since the MIL was turned on (MIL) at the command of the controller.
Misfire Current Cyl. 1-6 (Current misfire cyl. 1-6). The scan tool displays values in the range 0-200 counts. This parameter indicates the number of misfires detected during the last 200 cylinder firings. Under normal conditions, the counters may show some activity, but this activity should be almost the same for all cylinders, and the numerical values should be small.
Misfire History Cyl. 1-6 (Misfire history cyl. 1-6). The scan tool displays values in the range 0-65535 counts. The misfire history counters indicate the total number of misfires detected on each cylinder. The misfire history counters will not update or become active until the misfire diagnostic code DTC P0300 is set. The misfire history counters will be updated every 200 cylinder firings.
Misfire Monitor Complete This Ignition (Misfire control for this ignition cycle is complete). This parameter indicates if the diagnostic control is completed in the current engine/monitoring cycle.
Misfire Monitor Enabled This Ignition (Misfire control is on in this ignition cycle). This parameter indicates if diagnostic monitoring is enabled in the current engine/monitoring cycle.
Moderate Brake Apply Signal (Moderate brake pedal warning). This parameter indicates the state of the brake pedal, information about which is transmitted through the serial data circuit from the electronic brake control unit (EBCM).
PNP Switch (Switch "parking/neutral"). This parameter indicates whether the transmission mode selector is in the "parking" or "neutral".
Power Enrichment (Power enrichment). This parameter indicates the state of the controller's operating mode used to increase fuel delivery under certain acceleration conditions.
PRNDL Range (PRNDL range). This parameter indicates the transmission mode signal received by the controller, determined by directly decoding the PRNDL A, B, C and P signals received from the internal mode switch (IMS) gearboxes.
Reduced Engine Power (Reduced engine power). This parameter indicates whether the controller is commanding to reduce engine power depending on the state of the throttle actuator control system (TAC).
Short Term FT Bank 1 or Bank 2 (Bank 1 or 2 short term fuel trim).This parameter indicates the short term fuel trim made by the controller based on oxygen sensors 1 or 2. If the oxygen sensor indicates a lean air-fuel mixture, the controller will increase fuel by increasing the short-term fuel trim to a value greater than 0. If the oxygen sensor indicates the air-fuel mixture is lean rich, the controller will reduce fuel by reducing the short-term fuel trim to a value less than 0.
Spark (Spark). This parameter displays the amount of ignition advance set by the ECM for the ignition control circuits. The controller determines the required ignition timing.
Starter Relay Circuit Status (Starter relay circuit status). This parameter indicates the state of the starter relay control circuit. This parameter is set to Fault (out of order), if the starter relay control circuit is open, shorted to "mass" or on a live wire. This option is displayed as Interterminate (Undefined) until the relay control circuit is turned on. This setting may not change if a scan tool is used to turn on the control circuit.
Starter Relay Command (Starter relay command). This parameter indicates the state of the starter relay control circuit as commanded by the controller.
Start Up ECT (Launcher ECT). This parameter indicates the temperature of the engine coolant at start-up, determined from data received by the controller from the engine coolant temperature sensor (ECT).
Start Up IAT (Launcher IAT). This parameter indicates the temperature of the air entering the air intake system at start-up, determined from information received by the controller from the intake air temperature sensor (IAT).
Stop Lamp Pedal Switch (Stop Pedal Switch). This parameter indicates the position of the pedal, based on a signal sent to the controller from the brake light switch located on the pedal.
System Power Mode (System Power Mode). This parameter indicates the position of the ignition switch.
TAC System Learned Counts (TAC system learning steps). This parameter indicates the number of steps taken in the selection of job parameters (learning) throttle actuator control systems (TAC). The last step of training is the 11th step.
TCC Brake Pedal Switch (Brake Pedal TCC Switch). This parameter indicates the position of the pedal by a signal to the controller from the TCC switch located on the brake pedal.
TCC Status (TCC Status). This parameter indicates the condition of the torque converter clutch (TCC), given by the incoming command.
TCM Requested Torque (Required TCM Torque). This parameter indicates the calculated value of the torque required by the controller.
TCM Torque Increase (TCM Torque Boost). This parameter indicates whether the controller has responded to a request to increase torque.
TCS Torque Increase (TCS torque increase). This parameter indicates whether the controller has responded to a request to increase torque.
TCM Torque Reduction Active (TCM Torque Reduction Active). This parameter indicates whether the transmission control unit produces (TCM) torque reduction.
TCS Torque Reduction Active (TCS torque reduction active). This parameter indicates whether the electronic brake and traction control unit has determined (EBTCM), that the torque is reduced.
Torque Delivered Signal (Received torque signal). This is the estimated torque from the engine to the gearbox, used by the electronic brake and traction control unit (EBTCM) for the operation of the traction control system.
Torque Request Signal (Desired torque signal). Electronic brake and traction control (EBTCM) sends a request signal for the required torque to the controller. This reduces transmission torque to reduce wheel slip during acceleration to provide traction control.
Total Fuel Trim Avg. This parameter displays the overall fuel trim from the Idle/Decel and Stabilize/Boost cells.
Total Misfire Count (Total number of misfires). This parameter indicates the total number of cylinder ignition events that were determined by the controller to be misfiring in the last sample taken over 200 crankshaft revolutions.
TP Desired Angle (Required TP angle). This parameter indicates the required throttle angle (TP), specified by the controller command.
TP Indicated Angle (Indicator angle TP). This parameter indicates the percentage of throttle opening (TP), calculated by the controller based on information from two TP sensors.
TP Sensor 1 (TP sensor 1). This parameter indicates the actual throttle sensor 1 signal circuit voltage as measured by the controller.
TP Sensor 1 Learned Minimum (Fitted sensor minimum 1 TP). This parameter indicates the minimum value of the throttle position sensor 1 signal selected in the learning mode (TP), recorded by the controller during the last learning procedure.
TP Sensor 2 (TP 2 sensor). This parameter indicates the actual throttle sensor 2 signal circuit voltage as measured by the controller.
TP Sensor 2 Learned Minimum (Matched minimum sensor 2 TP). This parameter indicates the minimum value of the throttle position sensor 2 signal selected in the learning mode (TP), recorded by the controller during the last learning procedure
TP Sensor 1 and 2 (TP sensors 1 and 2). This parameter is Disagree (Mismatched), if the controller detects that the TP sensor 1 signal voltage is not in the correct relationship with the TP sensor 2. The scan tool under normal operating conditions displays Agree (Agreed).
Traction Control Status (Traction control status). This setting is set to Active (Actively), if the electronic brake and traction control unit (EBTCM) controls traction.
Transmission Gear Selector Signal (Gear selector signal). This parameter indicates the position of the transmission selector as reported by the serial data circuit from the transmission control unit (TCM).
Vehicle Security Status (Status of the car's security system). This parameter indicates the status of the vehicle's alarm system.
Vehicle speed (Vehicle speed). This parameter indicates the vehicle speed calculated by the transmission control unit (TCM) according to information received from the vehicle speed sensor (VSS).
Volumetric Efficiency (volumetric efficiency). This parameter indicates the volumetric efficiency of the motor as calculated by the controller.
Scan Tool Diagnostic Functions
|
Scan tool diagnostic function
|
Additional section (-s) menu
|
Description
|
|
Camshaft Actuator (Camshaft timing control drive)
|
Special Functions / Engine Output Controls / CMP Actuator System (Special functions / engine diagnostic functions / camshaft timing control drive system)
|
This function controls the camshaft timing actuator for the selected camshaft. The normal set state is NONE (NO). The system will increase or decrease the angle of the selected camshaft in 5 degree increments up to 40 degrees of crankshaft rotation. The scan tool initiates a test when the following conditions are met:
The system is in a given state until it is removed by the scanning tool.
|
|
Camshaft Actuator Solenoid (Camshaft camshaft timing control valve)
|
Special Functions / Engine Output Controls / CMP Actuator System (Special functions / engine diagnostic functions / camshaft timing control drive system)
|
This function controls the camshaft timing actuator valve of the selected camshaft. The normal set state is NONE (NO). When an on/off command is given, the ECM turns the camshaft timing actuator on or off. The scan tool initiates a test when the following conditions are met:
The system is in a given state until it is removed by the scanning tool.
|
|
Cylinder Power Balance (Cylinder power balance)
|
Special Functions / Fuel System (Special features / fuel system)
|
Important: Misfire Current and Misfire History may not change when using this feature.
This function turns off the selected fuel injector. The normal set state is NONE (NO). The scan tool initiates a test when the following conditions are met:
If a fuel injector has been turned off for 30 seconds, control of that fuel injector cannot be resumed for 60 seconds.
|
|
Engine Speed Control (Engine speed control)
|
Special Functions / TAC System (Special functions / TAC system)
|
This function controls the increase in idle speed in increments of 25, 100 and 500 rpm from base speed up to 1400 rpm. The scan tool initiates a test when the following conditions are met:
The engine will remain in the commanded state until it is captured by the scan tool.
|
|
EVAP adsorber purge valve
|
Special Functions / Engine Output Controls / EVAP System (Special functions / engine diagnostic functions / EMS system)
|
Important: When using this diagnostic feature, the EVAP Purge Solenoid Command parameter may not change.
This function controls the EVAP purge valve. The normal set state is NONE (NO). The system will increase or decrease purge by varying the duration of the purge valve in 10 percent increments from 0-100 percent. The system remains in the set state until it is read by a scan tool or a reading from the fuel tank pressure sensor (FTP) will not exceed -24 mm Hg. Art. (-12" w.c. Art.).
|
|
EVAP Purge/Seal (Blowing out / sealing the ESU)
|
Special Functions / Engine Output Controls / EVAP System (Special functions / engine diagnostic functions / EMS system)
|
Important: When using this diagnostic feature, the EVAP Purge Solenoid Command and EVAP Vent Solenoid Command parameters may not change.
This feature activates both the EVAP purge valve and the EVAP vent valve to pressurize the EVAP. When turned on, the purge valve receives a command "0 percent" and on the ventilation valve - command "turn on, no ventilation". The normal setpoint for both valves is NONE (NO). Both valves remain set until read by a scan tool or fuel tank pressure sensor reading (FTP) will not exceed -24 mm Hg. Art. (-12" w.c. Art.).
|
|
EVAP Test (EMS test)
|
Service Bay Test (Service station test)
|
This feature enables the Service Bay Test mode to check the health of the EMS system. The scan tool initiates a test when the following conditions are met:
|
|
EVAP Vent Solenoid (EVAP ventilation valve)
|
Special Functions / Engine Output Controls / EVAP System (Special functions / engine diagnostic functions / EMS system)
|
Important: When using this diagnostic feature, the EVAP Vent Solenoid Command parameter may not change.
This function controls the EVAP ventilation valve. The normal set state is NONE (NO). On command "On" ventilation valve switches to mode "Without ventilation". The system remains in the specified state until one of the following conditions is met:
|
|
fuel injector balance
|
Special Functions / Fuel System (Special features / fuel system)
|
This function turns on the fuel injector to check the correct flow through the fuel injector. The ECM will provide control pulses to the selected fuel injector when the following conditions are met:
Fuel/impulse to the selected fuel injector can only be applied once per ignition cycle.
|
|
Fuel pump; Gasoline pump; Electric fuel pump
|
Special Functions / Engine Output Controls (Special functions / diagnostic functions of the engine)
|
This function controls the fuel pump relay. The normal set state is NONE (NO). The scan tool initiates a test when the following conditions are met:
When receiving a command "on off.", the ECM turns the fuel pump relay on/off. If the engine is running and the fuel pump relay is commanded "off", the engine will shut down. The system remains in the set state for approximately 2 seconds or until cleared by a scan tool or the ECM detects vehicle movement.
|
|
Fuel Trim Reset (Reset fuel trim)
|
Special Functions / Fuel System (Special features / fuel system)
|
This function resets the fuel trim data and parameters matched in learning mode for diagnostic oxygen sensors (with electric heater).
|
|
Idle Learn Reset (Reset chiller parameters moves picked up in training mode)
|
Special Functions / TAC System (Special functions / TAC system)
|
This feature allows the ECM to learn the throttle position and idle speed parameters again when the following conditions are met.
|
|
IMRC Solenoid (IMRC valve)
|
Special Functions / Engine Output Controls (Special functions / diagnostic functions of the engine)
|
This function controls the intake manifold tract control valve (IMRC). The normal set state is NONE (NO). When an on/off command is given, the ECM turns the IMRC valve on or off. The scan tool initiates a test when the following conditions are met:
The system is in a given state until it is removed by the scanning tool.
|
|
Loop Status (Circuit status)
|
Special Functions / Engine Output Controls (Special functions / diagnostic functions of the engine)
|
This function monitors the status of the oxygen sensor circuit (with electric heater) (HO2S). Set states include NONE (NO), OPEN (OPEN) and CLOSED (CLOSED). The normal set state is NONE (NO). The loop state changes to OPEN or CLOSED on command. The system is in a given state until it is removed by the scanning tool.
|
|
Malfunction indicator lamp
|
Special Functions / Engine Output Controls (Special functions / diagnostic functions of the engine)
|
This function controls the Malfunction Indicator Lamp (MIL). The normal set state is NONE (NO). When an on/off command is given, the ECM turns the MIL on or off. The system is in a given state until it is removed by the scanning tool.
|
|
Throttle position
|
Special Functions / TAC System (Special functions / TAC system)
|
This feature controls the throttle in 10 percent increments. The scan tool initiates a test when the following conditions are met:
The system is in a given state until it is removed by the scanning tool.
|