B1C3A 1ST Row Driver Retractor Pretensioner Circuit Open

B1C3A code - With the ignition on, the Occupant Restraint Controller (ORC) monitors the resistance of the Driver seat belt retractor tensioner circuits. The ORC has detected an open or high resistance on the driver seat belt retractor tensioner circuits.

B1C3A code
Possible causes B1C3A code
- Driver seat belt retractor tensioner line 1 circuit open
- Driver seat belt retractor tensioner line 2 circuit open
- Driver seat belt retractor tensioner
- Occupant Restraint Controller (ORC)

Diagnostic test B1C3A code

Step 1. Determine active or stored DTC

Make sure the battery is fully charged. With the scan tool read the active ORC DTC. Select active or stored DTC.

Is the DTC active or stored?

ORC ACTIVE DTC, go to step 2.
ORC STORED DTC, go to step 5.

Step 2. Check for driver seat belt retractor tensioner circuit open

Turn the ignition off disconnect the 12 volt battery and wait two minutes before proceeding. Disconnect the driver seat belt retractor tensioner connector. Check connectors - clean and repair as necessary.
Turn the ignition on, then reconnect the 12 volt battery and wait two minutes before proceeding. With the scan tool, read the active ORC DTC.

Does the scan tool display B1C3A code?

Yes, go to step 3.
No, replace the driver seat belt retractor tensioner.

Step 3. Check driver seat belt retractor tensioner line 1 circuit for an open

Turn the ignition off disconnect the 12 volt battery and wait two minutes. Disconnect the ORC connectors. Measure the resistance of the driver seat belt retractor tensioner line 1 circuit between the driver seat belt retractor tensioner connector cavity 2 and SRS harness connector.

Is the resistance below 1.0 Ohms?

Yes, go to step 4.
No, repair the driver seat belt retractor tensioner line 1 circuit for an open.

Step 4. Check driver seat belt retractor tensioner line 2 circuit for an open

Measure the resistance of the driver seat belt retractor tensioner line 1 circuit between the driver seat belt retractor tensioner connector cavity 1 and SRS harness connector.

Is the resistance below 1.0 Ohms?

Yes, if the Occupant Restraint Controller (ORC) is dropped at any time, it must be replaced. Replace the ORC. Perform the Airbag system verification.
No, repair the driver seat belt retractor tensioner line 1 circuit for an open.

Step 5. Stored ORC DTC

With the scan tool record and erase all DTC from all airbag system modules. If any active codes ar present they must be resolved before diagnosing any stored codes. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. The following additional checks may assist you in identifying a possible intermittent problem. Reconnect any disconnected components and harness connector.

Turn the ignition on then reconnect the 12volt battery and wait two minutes before proceeding. With the scan tool monitor active codes as you work through the following steps. Wiggle the wiring harness and connectors of the related airbag circuit or component. If codes are related to the driver airbag circuits, rotate the steering wheel from stop to stop.
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 DTC present?

Yes, refer to DTC based diagnostics ORC and performing the appropriate diagnostic procedure.
No, no problem found at this time. Erase all codes before returning vehicle to customer.

0 Response to "B1C3A 1ST Row Driver Retractor Pretensioner Circuit Open"

Post a Comment

Sponsored links