Symptom:
*NO RESPONSE FROM FRONT CONTROL MODULE
POSSIBLE CAUSES
ATTEMPT TO COMMUNICATE WITH ANOTHER MODULE
OPEN GROUND CIRCUIT(S)
OPEN PCI BUS CIRCUIT
FRONT CONTROL MODULE
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
With the DRB, attempt to communicate with the Occupant Restraint Controller
(ORC).
With the DRB, attempt to communicate with the ABS module.
With the DRB, attempt to communicate with the Body Control Module (BCM).
Was the DRB able to I/D or communicate with any of the modules?
All
Yes
→ Go To 2
No
→ Refer to symptom list for problems related to the PCI Bus
Communication Failure.
Perform BODY VERIFICATION TEST - VER 1.
2
Turn the ignition off.
Remove the Front Control Module from the IPM.
Using a 12-volt test light connected to 12-volts, probe both Ground circuits.
Is the test light illuminated for each circuit?
All
Yes
→ Go To 3
No
→ Repair the Ground circuit(s) for an open.
Perform BODY VERIFICATION TEST - VER 1.
501
COMMUNICATION