Diagnostic Test

WARNING: This page is about a different car, the 2007 Chrysler PT Cruiser. However, it is still accessible from the selected car via links, so may be relevant.

1) CHECK FOR AN ACTIVE DTC B1BB8-SRS WARNING INDICATOR STATUS MISMATCH
NOTE: Ensure the battery is fully charged.

Turn the ignition on, then off, and then on again.

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

Does the scan tool display active: B1BB8-SRS WARNING INDICATOR STATUS MISMATCH?

Yes
1. Go to 2).
No
1. Go to 5).
2) CHECK FOR ACTIVE INSTRUMENT CLUSTER DTCs
With the scan tool, read Instrument Cluster DTCs.

Does the scan tool display and active Instrument Cluster DTCs?

Yes
1. Refer to symptom list for problems related to the Instrument Cluster.
2. Perform *AIRBAG SYSTEM VERIFICATION TEST - VER 1 .
No
1. Go to 3).
3) CHECK THE ORC AND INSTRUMENT CLUSTER FOR LAMP STATUS
With the scan tool view the Instrument Cluster Data Display.

Cycle the ignition key and observe the SRS Indicator Lamp Request status (Set/Not Set) during the Instrument Cluster bulb check.

With the scan tool view the ORC Data Display.

Select SRS Indicator Lamp Status from Bussed Inputs and sect SRS Indicator Lamp request from the Bussed Outputs.

Cycle the ignition key and observe the Status of each during the Instrument Cluster bulb check.

Did the Data Display information match each other?

Yes
1. Go to 4).
No
1. Replace the Instrument Cluster in accordance with the service information.
2. Perform *AIRBAG SYSTEM VERIFICATION TEST - VER 1 .
4) REPLACE THE OCCUPANT RESTRAINT CONTROLLER
WARNING: To avoid serious or fatal injury, turn the ignition off, disconnect the battery and wait two minutes before proceeding.

WARNING: If the airbag control module is dropped at any time, it must be replaced. Failure to take the proper precautions could result in accidental airbag deployment and serious or fatal injury.

If there are no possible causes remaining, view repair.

Repair
1. Replace the Occupant Restraint Controller in accordance with the service information.
2. Perform *AIRBAG SYSTEM VERIFICATION TEST - VER 1 .
5) TEST FOR INTERMITTENT CONDITION
With the scan tool, record and erase all DTCs from all Airbag modules.

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

WARNING: To avoid serious or fatal injury, 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 serious or fatal injury, 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 serious or fatal injury, 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 the active DTC in question.

Does the scan tool display any ACTIVE DTCs?

Yes
1. Select appropriate symptom from Symptom List.
No
1. No problem found at this time. Erase all codes before returning vehicle to customer.