B1C48 1ST Row Passanger Retractor Pretensioner Circuit High
November 06, 2019
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B1C48 code - With the ignition on, the Occupant Restraint Controller (ORC) monitors the voltage on the passanger seat belt retractor pretensioner circuits. The ORC detects voltage on the passanger seat belt retractor pretensioner circuits.
Possible causes B1C48 codes:
- Passanger seat belt retractor pretensioner data circuit shorted to battery
- Passanger seat belt retractor pretensioner voltage circuit shorted to battery
- Passanger seat belt retractor pretensioner
- Occupant Restraint Controller (ORC)
Is the DTC active or stored?
ACTIVE, go to step 2.
STORED, go to step 4.
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 B1C48 code?
Yes, go to step 3.
No, replace the passanger seat belt pretensioner. Perform the Airbag system verification.
Measure the voltage of the passanger seat belt retractor tensioner line 2 circuit between the passanger seat belt tensioner connector and ground.
Is there any voltage present on either circuit?
Yes, repair the passanger seat belt retractor tensioner circuits with voltage present for a short to battery.
No, if the Occupant Restraint Controller (ORC) is dropped at any time, it must be replaced. Replace the ORC. Perform the Airbag system verification.
Possible causes B1C48 codes:
- Passanger seat belt retractor pretensioner data circuit shorted to battery
- Passanger seat belt retractor pretensioner voltage circuit shorted to battery
- Passanger seat belt retractor pretensioner
- Occupant Restraint Controller (ORC)
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| Wiring for B1C48 code |
Diagnostic test B1C48 code
Step. 1 Determine active or stored DTC
With the scan tool, read the active ORC DTC.Is the DTC active or stored?
ACTIVE, go to step 2.
STORED, go to step 4.
Step 2. Check for shorted passanger seat belt retractor pretensioner
Turn the ignition off disconnect the 12volt battery and wait two minutes before proceeding. Disconnect the passanger seat belt retractor pretensioner 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 B1C48 code?
Yes, go to step 3.
No, replace the passanger seat belt pretensioner. Perform the Airbag system verification.
Step 3. Check passanger seat belt retractor tensioner line 1 circuit and passanger seat belt retractor tensioner line 2 circuit for a short to battery
Turn the ignition off disconnect the 12 volt battery and wait two minutes before proceeding. Disconnect the ORC connectors, measure the voltage of the passanger seat belt retractor tensioner line 1 circuit between the passanger seat belt tensioner connector and ground.Measure the voltage of the passanger seat belt retractor tensioner line 2 circuit between the passanger seat belt tensioner connector and ground.
Is there any voltage present on either circuit?
Yes, repair the passanger seat belt retractor tensioner circuits with voltage present for a short to battery.
No, if the Occupant Restraint Controller (ORC) is dropped at any time, it must be replaced. Replace the ORC. Perform the Airbag system verification.
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