B1BB9

B1BB9-AIRBAG SQUIB CIRCUIT COUPLING

For a complete wiring diagram Refer to Diagrams/Electrical.

- When Monitored:

While the CAN bus ignition status is in IGN_RUN and the module is configured for multiple airbag squibs, the module checks the squib current ranges.

- Set Condition:

If the module detects that two squib lines from separate circuits have been shorted or "coupled" together.





Diagnostic Test

1.CHECK FOR ACTIVE INTERNAL FAULTS, IGNITION FAULTS, AND BATTERY FAULTS IN THE OCCUPANT RESTRAINT CONTROLLER (ORC)

With the scan tool, read Occupant Restraint Controller (ORC) DTCs.

Does the scan tool display any active DTCs relating to internal faults, ignition faults, or battery faults?

Yes

- Diagnose and repair the DTCs.

No

- Go To 2

2.VERIFY THAT DTC B1BB9-AIRBAG SQUIB CIRCUIT COUPLING IS ACTIVE

Does the scan tool display active: B1BB9-AIRBAG SQUIB CIRCUIT COUPLING?

Yes

- Go To 3

No

- Go To 4

3.VERIFY THAT SQUIB SPECIFIC DTCs ARE ACTIVE

Does the scan tool display any active, squib specific DTCs (for example, driver or passenger airbag squib)?

Yes

- Diagnose and repair these DTCs first, perform the *ORC VERIFICATION TEST-VER 1. Occupant Restraint Controller (ORC) Verification Test

No

- Replace the ORC.
- Perform the *ORC VERIFICATION TEST-VER 1. Occupant Restraint Controller (ORC) Verification Test

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 and personal injury or death.

4.TEST FOR AN INTERMITTENT CONDITION

With the scan tool, record and erase all DTC's from the ORC.

If any ACTIVE codes are present they must be resolved before diagnosing any stored codes.

WARNING: To avoid personal injury or death, turn the ignition off, disconnect the battery and wait two minutes before proceeding.

Using the wiring diagram/schematic as a guide, inspect the wiring and connectors.

Look for chafed, pierced, pinched, or partially broken wires and broken, bent, pushed out, spread, corroded, or contaminated terminals.

The following additional checks may assist you in identifying a possible intermittent problem.

Reconnect any disconnected components and harness connector.

WARNING: To avoid personal injury or death, turn the ignition on, then reconnect the battery.

With the scan tool monitor active codes as you work through the following steps.

WARNING: To avoid personal injury or death, maintain a safe distance from all airbags while performing the following steps.

Wiggle the wiring harness and connectors of the related airbag circuit or component.

If only stored codes return continue the test until the problem area has been isolated.

In the previous steps you have attempted to recreate the conditions responsible for setting active DTC in question.

Are any ACTIVE DTCs present?

Yes

- Select the appropriate symptom from Symptom List.

No

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