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CIM / B3979 00

Read the instructions below then start the fault diagnostic procedure.

Symptom: Message appears in display. Engine does not start.

  B3979 00


BCM Missing on Bus or Not Added

Fault symptom

Message appears in display.

Engine does not start.

On-board diagnosis

Type of diagnosis:

Continuous

Enable criteria:

Diagnostics runs when key is inserted.

Fault criteria:

Immobilizer code from BCM absent.

System reaction to a fault:

No request for starter motor cranking sent from CIM.