Indication of vehicle wiring installations:

There are 12 main wirings on a vehicle.

1 Sensor on engine wiring

2 AdBlue-SCR wiring

3 BCU wiring (Main wiring)

4 On-transmission wiring

5 Exhaust-SCR wiring

6 Injector wiring inside the engine

7 Cab wiring

8 Bumper wiring

9 Front under hood wiring

10 Roof wiring

11 Door internal wiring

12 Rear lighting wiring

Engine Control Unit (ECU)