Possible Causes
| Possible Causes |
|---|
| CAN C BUS OPEN OR SHORTED CONDITION |
| NO POWER TO INSTRUMENT CLUSTER (CCN) - MODULE UNPLUGGED OR OPEN FUSE |
| POWERTRAIN CONTROL MODULE (PCM) |
Refer to ELECTRONIC CONTROL MODULES - ELECTRICAL DIAGNOSTICS for further possible causes.
The PCM receives:
- Wheel speed and wheel distance CAN bus messages from the Anti-Lock Brake module.
- A/C Pressure, Ambient Air Temperature and Fuel Level CAN bus messages from the Body Control Module.