Symptom:
NO CLUSTER MESSAGE
When Monitored and Set Condition:
NO CLUSTER MESSAGE
When Monitored: With ignition on, the ACM monitors the PCI Bus for a message from
the MIC containing the airbag warning indicator status. The MIC transmits the message
one time at ignition on, lamp state change, or in response to the ACM message.
Set Condition: If the MIC message is not received for 10 consecutive seconds, the code
will set.
POSSIBLE CAUSES
MIC, COMMUNICATION FAILURE
ACM, NO CLUSTER MESSAGES
STORED CODE OR INTERMITTENT CONDITION
ACTIVE CODE PRESENT
TEST ACTION APPLICABILITY
1 NOTE: Ensure that the battery is fully charged.
NOTE: For the purpose of this test, the AECM and ORC modules will be
referred to as an ACM.
Turn the ignition on.
SELECT ACTIVE or STORED DTC:
All
ACM - ACTIVE DTC
Go To 2
ACM - STORED DTC
Go To 4
NOTE: When reconnecting Airbag system components, the ignition must be
turned off and the battery must be disconnected.
2 Turn the ignition on.
With the DRBIIIt, ensure PCI Bus communications with the Instrument Cluster.
Is the Instrument Cluster communicating on the PCI Bus?
All
Yes → Go To 3
No → Refer to category COMMUNICATION CATEGORY and select the
related symptom INSTRUMENT CLUSTER BUS +/- SIGNAL
OPEN or NO RESPONSE.
49
AIRBAG
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