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OnStar / B1000 3B

Read the instructions below then start the fault diagnostic procedure.

Symptom: OnStar Call Center (OCC) cannot localise the car.

  B1000 3B


Control Module. Internal Fault

Fault symptom

OnStar Call Center (OCC) cannot localise the car.

On-board diagnosis

Type of diagnosis:

Continuous

Enable criteria:

Turn Ignition On

Fault criteria:

Selftest Failure

Diagnostic help

See 'Before changing a control module'.