Block Diagram
CAN abbreviations
Function Table
| Description | Source | Destination |
|---|---|---|
| Instrument illumination dimming | BCM | ECC EHU CDC TMS |
| Ambient temperature | BCM | ECC EHU GPS |
| Engine speed Vehicle speed Engine running status | ECM | ECC |
| AC compressor information AC pressure on high pressure side | ECM | ECC |
| Coolant temperature | ECM | ECC |
| Ignition lock information | CIM | ECC AUS TMS |
| Add-on heater active (feedback) Auxiliary heating status Add-on heater coolant temperature | AHS | ECC |
| Rear screen heating active | REC | ECC |
| Engine and vehicle status | ECM | AUS GPS ECC TMS |
| Manual transmission – reversing lamp switch active | UEC | AUS GPS ECC TMS |
| Steering wheel remote control activated | CIM | AUS |
| Automatic transmission – current gear | TCM | AUS GPS ECC TMS |
| AC compressor information | ECC | ECM |
| AC fan active Rear screen heating switch active | ECC | BCM |
| Radio ON signal for antenna amplifier | AUS | REC |
Functional Description
In the Vectra-C, the DIS display is responsible for the interface function between the low-speed CAN bus (LSCAN) and the mid-speed CAN bus (MSCAN).