Symptom:
NO LEFT SIACM MESSAGE
When Monitored and Set Condition:
NO LEFT SIACM MESSAGE
When Monitored: With ignition on, the ACM monitors the PCI Bus for the Left Side
Impact Airbag Control Module status message. The Left SIACM transmits the status
message to the ACM at 1 - second intervals.
Set Condition: If theACM fails to see the Left SIACM status message on the PCI Bus for
10 seconds the code will set.
POSSIBLE CAUSES
NO LEFT SIACM MESSAGE
ACM, NO LEFT SIACM MESSAGE
STORED CODE OR INTERMITTENT CONDITION
ACTIVE CODE PRESENT
TEST ACTION APPLICABILITY
1 NOTE: Ensure the battery is fully charged.
Turn the ignition on.
NOTE: For the purpose of this test, the AECM and ORC modules will be
referred to as an ACM.
SELECT ACTIVE or STORED DTC:
All
ACM - ACTIVE DTC
Go To 2
ACM - STORED DTC
Go To 4
2 With the DRBIIIt select PASSIVE RESTRAINTS, SIDE AIRBAG then LEFT SIDE
from the DRB menu.
Does the DRBIIIt show NO RESPONSE or BUS +/- SIGNAL OPEN?
All
Yes → Refer to the Communication category for the related symptom.
Perform AIRBAG VERIFICATION TEST - VER 1.
No → Go To 3
3 WARNING: TURN THE IGNITION OFF, DISCONNECT THE BATTERY AND
WAIT TWO MINUTES BEFORE PROCEEDING.
If there are no possible causes remaining, view repair.
All
Repair
Replace the Airbag Control Module in accordance with Service
Instructions. WARNING: IF THE AIRBAG CONTROL MODULE
IS DROPPED AT ANY TIME, IT MUST BE REPLACED.
Perform AIRBAG VERIFICATION TEST - VER 1.
51
AIRBAG
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