Diagnostic Test
- DETERMINE ACTIVE OR STORED DTC NOTE:
Make sure that the battery is fully charged.
NOTE:The scan tool, SRS Load Tool Kit (special tool #8443A, SRS Load Tool), and DVOM are required to perform the following test.
- CHECK FOR SHORTED SQUIB CIRCUITS IN THE LEFT SEAT AIRBAG
WARNING:
Turn the ignition off disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury.
- Disconnect the Left Seat Airbag connector.WARNING:
Do not place an intact non-deployed Seat Squib Airbag face down on a hard surface, the airbag will propel into the air if accidentally deployed. Failure to follow these instructions may result in possible serious or fatal injury.
NOTE:Check connectors - Clean and repair as necessary.
- Connect the SRS Load Tool Kit (special tool #8443A, SRS Load Tool) and SRS Load Tool Jumper (special tool #8443-1, Jumpers, 2 Pin) to the Left Seat Airbag connector.WARNING:
Turn the ignition on, then reconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury.
- With the scan tool, read the active ORC DTC.
Does the scan tool display: B1C2A-LEFT SIDE SEAT THORAX SQUIB 1 SHORTED TOGETHER?
Yes
- Go To 3
No
WARNING:Turn the ignition off, disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury.
- Replace the Left Seat Airbag in accordance with the Service Information.
- Perform the AIRBAG SYSTEM VERIFICATION TEST. Refer to STANDARD PROCEDURE - AIRBAG SYSTEM VERIFICATION TEST .
- Disconnect the Left Seat Airbag connector.
- CHECK FOR LEFT SEAT AIRBAG SQUIB CIRCUITS SHORTED TOGETHER IN THE SEAT BACK
WARNING:
Turn the ignition off, disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury.
- Disconnect the Left Seat Airbag C353 in-line connector (under Left Seat).NOTE:
Check connectors - Clean and repair as necessary.
- Connect the SRS Load Tool Kit (special tool #8443A, SRS Load Tool) and SRS Load Tool Jumper (special tool #8443-20, Jumper, SRS Load Tool) to the Left Seat Airbag C353 in-line connector (Body Side).WARNING:
Turn the ignition on, then reconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury.
- With the scan tool, read the active ORC DTC.
Does the scan tool display: B1C2A-LEFT SIDE SEAT THORAX SQUIB 1 SHORTED TOGETHER?
Yes
- Go To 4
No
WARNING:Turn the ignition off, disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury.
- In accordance with the Service Information repair or replace the Left Seat Airbag wiring harness (Side Airbag Jumper). Circuits (R5) and (R7) shorted together between the C353 in-line connector and the Left Seat Airbag connector.
- Perform the AIRBAG SYSTEM VERIFICATION TEST. Refer to STANDARD PROCEDURE - AIRBAG SYSTEM VERIFICATION TEST .
- Disconnect the Left Seat Airbag C353 in-line connector (under Left Seat).
- CHECK (R5) LEFT SEAT SQUIB 1 LINE 2 CIRCUIT FOR A SHORT TO (R7) LEFT SEAT SQUIB 1 LINE 1 CIRCUIT
WARNING:
Turn the ignition off, disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury.
- Disconnect the SRS Load Tool Kit (special tool #8443A, SRS Load Tool) and SRS Load Tool Jumper (special tool #8443-20, Jumper, SRS Load Tool) from the Left Seat Airbag connector.
- Disconnect the ORC connectors.NOTE:
Check connectors - Clean and repair as necessary.
- Connect the SRS Load Tool Adaptor (special tool #8443-25, 56 Way ACM Adapter) to the ORC connectors.
- Measure the resistance between the (R5) Left Seat Squib 1 Line 2 circuit cavity 1 and the (R7) Left Seat Squib 1 Line 1 circuit cavity 2 at the C353 in-line connector (Body side).
Is the resistance below 10k Ohms?
Yes
- In accordance with the Service Information repair or replace the Left Seat Airbag wiring harness. Circuits (R5) and (R7) shorted together between the C353 in-line connector and the ORC C2 (32 way) connector.
- Perform the AIRBAG SYSTEM VERIFICATION TEST. Refer to STANDARD PROCEDURE - AIRBAG SYSTEM VERIFICATION TEST .
No
WARNING:If the Occupant Restraint Controller (ORC) is dropped at any time, it must be replaced. Failure to take the proper precautions can result in accidental airbag deployment. Failure to follow these instructions may result in possible serious or fatal injury.
- Replace the ORC in accordance with Service Information.
- Perform the AIRBAG SYSTEM VERIFICATION TEST. Refer to STANDARD PROCEDURE - AIRBAG SYSTEM VERIFICATION TEST .
- CHECKING STORED OR INTERMITTENT CODES NOTE:
Diagnose and repair all active codes before diagnosing stored codes.
- With the scan tool, record and erase all Airbag System Module DTCs.WARNING:
Turn the ignition off, disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury.
- Using the wiring diagram/schematic as a guide, inspect the related wiring and connectors for chafed, pierced, pinched, and partially broken wires, and for broken, bent, pushed out, corroded, and contaminated terminals. Repair as necessary.
- Reconnect all disconnected components and harness connectors.WARNING:
Turn the ignition on, then reconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury.
- With the scan tool, monitor for active codes while performing the following:
- Wiggle the wiring harness and connectors of the related airbag circuit.
- Continue the test until either a code becomes active or the problem area is isolated.
- In the previous steps you have attempted to recreate the conditions responsible for setting the DTC in question/causing the intermittent condition.
Are any ACTIVE DTCs present?
Yes
- Perform the appropriate diagnostic procedure. OCCUPANT RESTRAINT CONTROLLER (ORC) - DIAGNOSTIC CODE INDEX .
No
- No problem found at this time. Erase all codes before returning the vehicle to the customer.
- With the scan tool, record and erase all Airbag System Module DTCs.


