Wiring diagrams — general information

Since it is not possible to provide all the wiring diagrams for every vehicle model covered in this manual, the most common and commonly used diagrams are given.

Before troubleshooting any circuit, check the condition of the fuses and circuit breakers (if they are installed). Make sure the battery is properly charged and check the wire connections (see chapter 1, section 8).

When checking the circuit, make sure that all electrical connectors are clean and that the terminals are undamaged and securely connected. When disconnecting the electrical connector, do not pull on the wires, but only on the connector housing.