B1B01 Driver Airbag squib 1 circuit high

B1B01 code - With the ignition on. Set condition, the Occupant Restraint Controller (ORC) monitors the voltage on the driver squib 1 circuits. The ORC will set this DTC if it detect voltage on the driver squib 1 circuits.

B1B01
Possible causes:
- Driver squib 1 line 2 circuit shorted to battery
- Driver squib 1 line 1 circuit shorted to battery
- Clockspring
- Driver Airbag
- Occupant Restraint Controller (ORC or Airbag Module)

Diagnostic test B1B01 code 

Step 1. Determine active or stored DTC

Make sure that the battery is fully charged. With the scan tool, read the active ORC DTC, turn the ignition on.

Select active or stored DTC B1B01 code ? 

Active DTC, go to step 2.
Stored DTC, go to step 5.

Step 2. Check for shorted squib circuits in driver Airbag

Disconnect the driver airbag squib connectors. Check connectors, clean and repair as neccesary. Connect the SRS load tool kit and SRS load tool jumper to the driver airbag squib connectors. With the scan tool, read the active ORC DTC.

Does the scan tool display code B1B01 Driver Airbag squib 1 circuit high DTC ?

Yes, go to step 3.
No, replace the Driver Airbag. Perform the Airbag system verification.

Step 3. Check the clockspring squib circuits for a short ground

Disconnect the SRS load tool kit and SRS load tool jumper from the Driver Airbag squib connectors, disconnect the clockspring connector. Check connectors, clean and repair as neccesary. Connect the SRS load tool kit and SRS load tool jumper to the clockspring connector. With the scan tool, read the active ORC DTC.

Does the scan tool display code B1B01 Driver Airbag squib 1 circuit high DTC ?

Yes, go to step 4.
No, replace the Clockspring. Perform the Airbag system verification.

Step 4. Check Driver squib 1 line 2 circuit and Driver squib 1 line 1 circuit for a short to battery

Disconnect the SRS load tool kit and jumper from the Clockspring connector, disconnect the ORC connectors. Check connectors, clean and repair as neccesary. Connect the SRS load tool adaptor to the ORC connector. Measure the voltage of the Driver squib 1 line 2 circuit between the SRS load tool adaptor, measure the voltage of the Driver squib 1 line 1 circuit between adaptor.

Is there any voltage for either measurement ?

Yes, repair the Driver squib 1 circuits with voltage present for a short to battery.
No, replace the Occupant Restraint Controller (ORC or Airbag Module). Perform the Airbag system verification.


Step 5. Checking stored or intermittent codes

Diagnose and repair all active codes on the ORC or Airbag Module before diagnosing stored. With the scan tool, record and erase all Airbag system module DTC. Using the wiring diagram/schematic as a guide, inspect the related wiring and connectors for chafed, pierced, pinched, and partially broken wires, and for broken, bent, pushed out, corroded, and contaminated terminals. Repair as neccesary. Reconnect all disconnected components and harness connectors.

Are any active DTC present ?

Yes, perform the appropriate diagnostic procedure.
No, no problem found at this time.

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