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B0029-11






B0029-11-RIGHT CURTAIN DEPLOYMENT SQUIB 1 - CIRCUIT SHORT TO GROUND







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 ORC (connected to neither power nor ground) as protection against inadvertent deployment. Use of the Supplemental Restraints System (SRS) Load Tool Kit 8443A 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 ORC harness connector.
- When Monitored:
The ORC sends out a 40 mA diagnostic current on each squib voltage supply circuit at power up and every 500 ms thereafter while the ignition is on. With the ignition on, the Occupant Restraint Controller (ORC) monitors the resistance of the Right Side Curtain Squib 1 circuits.

- Set Condition:
This Diagnostic Trouble Code (DTC) sets when the ORC detects a short to ground on the right squib circuit for more than 2.5 seconds. This DTC transitions from active to stored when the ORC sees a recovery from a short to ground condition for greater than 2.5 seconds. The ORC has detected low resistance of the Right Side Curtain Squib 1 circuits.





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

1. VERIFY ACTIVE DTC

NOTE: Make sure the battery is fully charged.

1. Turn the ignition on.
2. With the scan tool, read ORC DTCs.

Does the scan tool display active B0029-11-RIGHT CURTAIN DEPLOYMENT SQUIB 1 - CIRCUIT SHORT TO GROUND DTC?

Yes

- Go To 2

No

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

2. CHECK RIGHT SIDE CURTAIN AIRBAG FOR SHORT 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 Right Side Curtain Airbag harness connector.

WARNING: Do not place an intact non-deployed 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 8443A and SRS Load Tool Jumper 8443-1 to the Right Side Curtain Airbag harness 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 ORC DTCs.

Does the scan tool display active B0029-11-RIGHT CURTAIN DEPLOYMENT SQUIB 1 - CIRCUIT SHORT TO GROUND DTC?

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 Right Side Curtain Airbag.
- Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Restraints System Verification Test.

3. CHECK (R2, R4) RIGHT CURTAIN SQUIB 1 CIRCUITS FOR A SHORT 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 8443A and Jumper from the Right Side Curtain Airbag harness connector.
2. Disconnect the ORC harness connectors.

NOTE: Check connectors - Clean and repair as necessary.

3. Connect the SRS Load Tool Adapter 8443-24 to the ORC C1 harness connector.
4. Measure the resistance of the (R4) Right Curtain Squib 1 Line 1 circuit between the Right Side Curtain Airbag harness connector cavity 1 and ground.
5. Measure the resistance of the (R2) Right Curtain Squib 1 Line 2 circuit between the Right Side Curtain Airbag harness connector cavity 2.

Is the resistance below 10K Ohms on either circuit?

Yes

- Repair the Right Curtain Squib 1 circuits for a short 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 ORC.
- Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Restraints System Verification Test.

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