Controls the engine cooling fan, headlights, wipers, and fuel pump.

: Diagnosing the communication lines between the UCH and the steering lock module.

To fully navigate the technical documentation, it is essential to understand exactly what each segment of the keyword signifies:

[Under-Bonnet Switching Unit (UPC)] │ (High-Speed CAN-Bus) │ [Passenger Compartment Connection Unit (UCH)] │ (Low-Speed VAN/CAN-Bus) │ ┌─────────────┼─────────────┐ ▼ ▼ ▼ [Door Modules] [Card Reader] [Instrument Cluster] 1. The UCH (Unité de Contrôle Habitacle)

Use the manual's "Electrical Components Locator" to find the physical position of sensors or control units within the car. Check Pinouts:

The full documentation is normally distributed as an . To access the interface correctly on modern computer systems: