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B1B09






B1B09-PASSENGER AIRBAG SQUIB 1 CIRCUIT HIGH





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 Occupant Restraint Controller (ORC) monitors the voltage on the Passenger Squib 1 circuits.

- Set Condition:
When the ORC detects voltage on the Passenger 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: B1B09-PASSENGER AIRBAG SQUIB 1 CIRCUIT HIGH?

Yes

- Go To 2

No

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

2. PASSENGER AIRBAG SHORTED 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 Passenger Airbag harness connector.

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 harness connectors - Clean and repair as necessary.

2. Connect the SRS Load Tool Kit 8443 to the Passenger Airbag 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.

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

Does the scan tool display active: B1B09-PASSENGER AIRBAG SQUIB 1 CIRCUIT HIGH?

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

3. (R42) PASSENGER SQUIB 1 LINE 1 AND OR (R44) PASSENGER SQUIB 1 LINE 2 SHORTED 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 8443 from the Passenger Airbag Squib harness connector.
2. Disconnect the ORC harness connectors.

NOTE: Check harness connectors - Clean and repair as necessary.

3. Connect the SRS Load Tool Adaptor 8443-25 to the ORC harness 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.

4. Measure the voltage on the (R42) Passenger Squib 1 Line 1 circuit between the Passenger Airbag Squib harness connector cavity 2 and ground.
5. Measure the voltage on the (R44) Passenger Squib 1 Line 2 circuits between the Passenger Airbag Squib harness connector cavity 1 and ground.

Is there any voltage on either circuit?

Yes

- 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.

- Repair (R42) and (R44) Passenger Squib 1 circuits shorted to battery.
- Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Restraints System Verification Test.

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.

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

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