No OCM Message

Test 1-2:

Test 3-5:

SYMPTOM
NO OCM MESSAGE

WHEN MONITORED
At ignition on, the ACM monitors the PCI Bus for a PCI Bus message from the Occupant Classification Module.

SET CONDITION
The DTC will set if the ACM does not receive a valid OCM bus message, if expected by vehicle configuration.

POSSIBLE CAUSES
- Active loss of IGN run-start DTC
- OCM, communication failure
- ACM, no occupant classification module messages
- Stored code or intermittent condition
- Active code present