OnStar / B2476 04
Read the instructions below then
start the fault diagnostic procedure.
Symptom: Not possible to call OnStar Call Center (OCC).
OnStar button Circiut Open
Fault symptom
Not possible to call OnStar Call Center (OCC).
On-board diagnosis
Enable criteria:
Fault criteria:
| Open circuit in power supply/grounding to keypad. |
Checking the wiring harness
Jiggle the wiring harness at several points to detect intermittent breaks or short circuits. Check also the connector for oxidation or loose pins.
Diagnostic help
Electrical fault in connecting leads or component.
