FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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No Odometer Messages

Test 1 - 2:




Test 3 - 5:






SYMPTOM
NO ODOMETER MESSAGE

WHEN MONITORED
With ignition on, the ACM monitors the PCI Bus for the Odometer message from the Body Control Module. The PCM transmits the odometer message at 1 second intervals.

SET CONDITION
The code Will set, if the ACM does not see the odometer message for 10 seconds.

POSSIBLE CAUSES
- PCM, PCI communication failure
- No odometer message
- Stored code or intermittent condition
- ACM, no odometer message
- Active code present