B1C28-LEFT SIDE SEAT THORAX SQUIB 1 HIGH

Special Tools: Click to display a list of tools used in this procedure

For a complete wiring diagram, refer to the Wiring Information.

Possible Causes

When Monitored:
With the ignition on.
Set Condition:
The Occupant Restraint Controller (ORC) monitors the voltage on the Left Seat Squib circuits. The ORC will set this DTC if it detects voltage on the Left Seat Squib circuits.

Possible Causes
(R31) LEFT SEAT SQUIB LINE 1 CIRCUIT SHORTED TO BATTERY
(R33) LEFT SEAT SQUIB LINE 2 CIRCUIT SHORTED TO BATTERY
LEFT SEAT SQUIB AIRBAG
OCCUPANT RESTRAINT CONTROLLER (ORC)

1. DETERMINE ACTIVE OR STORED DTC

NOTE: Make sure that the battery is fully charged.

NOTE: The scan tool, SRS Load Tool Kit 8443A , and DVOM are required to perform the following test.

1.	Turn the ignition on.

2.	With the scan tool, read the active ORC DTC.

Select ACTIVE or STORED DTC:

ACTIVE DTC

Go To 2

STORED DTC

Go To 4

2. CHECK FOR SHORTED SQUIB CIRCUITS IN LEFT SEAT SQUIB 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.

1.	Disconnect the Left Seat Squib Airbag connector.

WARNING:

To avoid serious or fatal injury, do not place an intact non-deployed Left Seat Squib Airbag face down on a hard surface, the airbag will propel into the air if accidentally deployed.

NOTE: Check connectors - Clean and repair as necessary.

2.	Connect the SRS Load Tool Kit 8443A and SRS Load Tool Jumper 8443-1 to the Left Seat Squib 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.

3.	With the scan tool, read the active ORC DTC.

Does the scan tool display : B1C28-LEFT SIDE SEAT THORAX SQUIB 1 HIGH

Yes

Go To 3

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 Squib Airbag in accordance with the Service Information.
Perform the AIRBAG SYSTEM VERIFICATION TEST. (Refer to 28 - DTC-Based Diagnostics/CONTROLLER, Occupant Restraint (ORC) - Standard Procedure).

3. CHECK THE (R31) LEFT SEAT SQUIB LINE 1 CIRCUIT OR (R33) LEFT SEAT SQUIB LINE 2 CIRCUIT FOR A SHORT TO BATTERY

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.

1.	Disconnect the SRS Load Tool Kit 8443A and SRS Load Tool Jumper 8443-1 from the Left Seat Squib Airbag connector.

2.	Disconnect the ORC connectors.

NOTE: Check connectors - Clean and repair as necessary.

3.	Connect the SRS Load Tool Adaptor 8443-32-L to the ORC connectors.

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.

4.	Measure the voltage of the (R31) Left Seat Squib Line 1 circuit cavity 1 between the SRS Load Tool Adaptor 8443-32-L and ground.

5.	Measure the voltage of the (R33) Left Seat Squib Line 2 circuit cavity 2 between the SRS Load Tool Adaptor 8443-32-L and ground.

Is there any voltage present on either circuit?

Yes

Repair the Left Seat Squib circuits with voltage present for a short to battery.
Perform the AIRBAG SYSTEM VERIFICATION TEST. (Refer to 28 - DTC-Based Diagnostics/CONTROLLER, Occupant Restraint (ORC) - Standard Procedure).

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.

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 the Service Information.
Perform the AIRBAG SYSTEM VERIFICATION TEST. (Refer to 28 - DTC-Based Diagnostics/CONTROLLER, Occupant Restraint (ORC) - Standard Procedure).

4. CHECKING STORED OR INTERMITTENT CODES

NOTE: Diagnose and repair all active codes before diagnosing stored codes. (Refer to 28 - DTC-Based Diagnostics/CONTROLLER, Occupant Restraint (ORC) - Diagnosis and Testing) for a complete list of airbag system diagnostic procedures.

1.	With the scan tool, record and erase all Airbag System Module DTC.

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.

2.	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.

3.	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.

4.	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.

5.	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 DTC present?

Yes

(Refer to 28 - DTC-Based Diagnostics/CONTROLLER, Occupant Restraint (ORC) - Diagnosis and Testing) and perform the appropriate diagnostic procedure.

No problem found at this time. Erase all codes before returning the vehicle to the customer.

	8443A - SRS Load Tool Originally Shipped In Kit Number(s) 8443.
	8443-1 - Jumpers, 2 Pin Originally Shipped In Kit Number(s) 8443A.
	8443-32-L - Adapter, SRS Adapter Originally Shipped In Kit Number(s) 8443.