U1500

U1500

U1500 CAN Bus Communication Error







Fault symptoms
- The LED on the control button unit shows a red light.
- It is not possible to ring to the OnStar Call Center (OCC).

On-Board Diagnosis

Type of diagnosis:
- Continuous

Enabling criteria:
- Ignition ON.

Fault criteria:
- Fault in the internal communication in the VCIM.

Diagnostic help
The present fault code is erased directly the fault ceases. The historical fault codes are erased after 50 fault free driving cycles.

Fault Diagnosis Procedure (2007;2008;2009;2010)