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B1B00






B1B00-DRIVER AIRBAG SQUIB 1 CIRCUIT LOW





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

Theory of Operation

When powered, the Occupant Restraint Controller (ORC) sends a test current to the squibs to verify the integrity of the squib and wiring. These circuits are maintained in a "floating" configuration at the module (connected to neither power nor ground) as protection against inadvertent deployment. Use of the SRS Load Tool Kit 8443 in the tests below substitutes a suspect squib with a known good component. The use of the SRS Load Tool Adapter provides a test point as well as a method for opening the shorting bar connections within the harness connector.

- When Monitored:
With the ignition on, the ORC monitors the resistance of the Driver Squib 1 circuits.

- Set Condition:
The ORC has detected low resistance on the Driver Squib 1 circuits.





Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Restraints System Pre-Diagnostic Procedure.

1. DETERMINE ACTIVE OR STORED DTC

NOTE: Ensure the battery is fully charged.

1. Turn the ignition on.
2. With the scan tool, read the active Occupant Restraint Controller DTCs.

Does the scan tool display active: B1B00-DRIVER AIRBAG SQUIB 1 CIRCUIT LOW?

Yes

- Go To 2

No

- Perform the RESTRAINTS SYSTEM INTERMITTENT TEST. . Restraints System Intermittent Condition Test

2. DRIVER AIRBAG SHORTED





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 Driver Airbag connectors.

WARNING: Do not place an intact undeployed airbag face down on a hard surface, the airbag propels 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.

2. Connect the SRS Load Tool Kit 8443 and the SRS Load Tool Jumper 8443-8 to the Driver Airbag connectors.

WARNING: Turn the ignition on, then reconnect the 12-volt battery. Failure to follow these instructions may result in possible serious or fatal injury.

3. With the scan tool, read the active Occupant Restraint Controller DTCs.

Does the scan tool display active: B1B00-DRIVER AIRBAG SQUIB 1 CIRCUIT LOW?

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 Driver Airbag.
- Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Restraints System Verification Test.

3. CLOCKSPRING SQUIB CIRCUITS





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 Jumper 8443-8 from the Driver Airbag connectors.
2. Disconnect the Clockspring C2 harness connector.

NOTE: Check connectors - Clean and repair as necessary.

3. Connect the SRS Load Tool Kit 8443 and the SRS Load Tool Jumper 8443-19 to the Clockspring C2 harness connector.

WARNING: Turn the ignition on, then reconnect the 12-volt battery. Failure to follow these instructions may result in possible serious or fatal injury.

4. With the scan tool, read the active Occupant Restraint Controller DTCs.

Does the scan tool display active: B1B00-DRIVER AIRBAG SQUIB 1 CIRCUIT LOW?

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.

- Replace the Clockspring.
- Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Restraints System Verification Test.

4. (R43) DRIVER SQUIB 1 LINE 2 OR (R45) DRIVER SQUIB 1 LINE 1 SHORTED TO GROUND





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 8443 and SRS Load Tool Jumper 8443-19.
2. Disconnect the ORC harness connectors.

NOTE: Check connectors - Clean and repair as necessary.

3. Connect the SRS Load Tool Adapter 8443-25 to the ORC harness connectors.
4. Measure the resistance of the (R43) Driver Squib 1 Line 2 cavity 3 and (R45) Driver Squib 1 Line 1 cavity 4 circuits between the Clockspring C2 harness connector and Ground.

Is the resistance below 10K ohms?

Yes

- Repair (R43) and (R45) Driver Squib circuits shorted to ground
- Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Restraints System Verification Test.

No

- WARNING: If the Occupant Restraint Controller (ORC) is dropped at any time, it must be replaced. Failure to follow these instructions may result in possible serious or fatal injury.

- Replace the Occupant Restraint Controller (ORC).
- Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Restraints System Verification Test.

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