B1C49 1ST Row Passanger Retractor Pretensioner Circuit Open

B1C49 code - With the ignition on, the Occupant Restraint Controller (ORC) monitors the resistance of the passanger seat belt retractor tensioner circuits. The ORC has detected an open or high resistance on the passanger seat belt retractor tensioner circuits.

Possible causes B1C49 code:
- Passanger seat belt retractor tensioner line 1 circuit open
- Passanger seat belt retractor tensioner line 2 circuit open
- Passanger seat belt retractor tensioner
- Occupant Restraint Controller (ORC)

Diagnostic test B1C49 code

Step 1. Determine active orr stored DTC

With the scan tool, read the active ORC DTC. Select active or stored DTC.

Is the DTC active or stored?

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

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

Turn the ignition off disconnect the 12 volt battery and wait two minutes before proceeding. Disconnect the passanger seat belt retractor tensioner connector.

Connect the supplemental restraint system SRS load tool kit 8443A and SRS load tool jumper to the passanger seat belt retractor tensioner connector. 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 B1C49 code?

Yes, go to step 3.
No, replace the passanger seat belt retractor tensioner. Perform the Airbag system verification.

Step 3. Check passanger seat belt retractor tensioner data circuit for an open

Turn the ignition off, disconnect the 12 volt battery and wait two minutes before proceeding. Disconnect the SRS load tool kit 8443A and jumper from the passanger seat belt retractor tensioner connector. Disconnect the ORC connectors.
Connect the SRS laod tool adaptor 8443-32-L to the ORC connectors. Measure the resistance of the Passanger seat belt retractor tensioner connector cavity 1 and the SRS load tool adaptor 8443-32-L cavity 2 C2-3

Is the resistance below 1.0 Ohms?

Yes, go to step 4.
No, repair passanger seat belt retractor pretensioner line 1 circuit for an open.

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

Measure the resistance of the passanger seat belt retractor tensioner line 2 circuit between the passanger seat belt retractor tensioner connector cavity 2 and the SRS load tool adaptor 8443-32-L cavity C2-4

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,
No, repair the passanger seat belt retractor tensioner line 2 circuit for and open

Step 5. Stored ORC DTC.

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