Dodge 2004 Neon SX2 Diagnostic Manual page 115

COMMUNICATION
*NO RESPONSE FROM LEFT SIACM —
TEST
4 NOTE: Ensure there is PCI bus communication with other modules. If not,
refer to the PCI Bus Communication Failure symptom and repair as
necessary.
WARNING: TURN THE IGNITION OFF, DISCONNECT THE BATTERY AND
WAIT TWO MINUTES BEFORE PROCEEDING.
Disconnect the Left Side Impact Airbag Control Module harness connector.
Connect the appropriate Load Tool SIACM Adapter to the SIACM connector.
Turn the ignition on and then reconnect the Battery.
Use Scope input cable CH7058, Cable to Probe adapter CH7062, and the red and
black test probes.
Connect the scope input cable to the channel one connector on the DRB. Attach the
red and black leads and the cable to probe adapter to the scope input cable.
With the DRBIII select Pep Module Tools.
Select lab scope.
Select Live Data.
Select 12 volt square wave.
Press F2 for Scope.
Press F2 and use the down arrow to set voltage range to 20 volts. Set Probe to x10.
Press F2 again when complete.
Connect the Black lead to the chassis ground. Connect the Red lead to the PCI Bus
circuit in the Left Side Impact Airbag Control Module connector.
Observe the voltage display on the DRB Lab Scope.
Does the voltage pulse from 0 to approximately 7.5 volts?
Yes → Go To 5
→ Repair the PCI Bus circuit for an open.
No
5 If there are no possible causes remaining, view repair.
Yes → Replace the Left Side Impact Airbag Control Module (LSIACM) in
ACTION
Perform AIRBAG VERIFICATION TEST - VER 1.
accordance with the Service Information. WARNING: Make sure
the battery is disconnected and wait 2 minutes before proceeding.
Perform AIRBAG VERIFICATION TEST - VER 1.
Continued
108
APPLICABILITY
All
All