B1B55
B1B55-1ST ROW PASSENGER SEAT BELT SENSOR CIRCUIT HIGH
For a complete wiring diagram, refer to the Wiring Information.
- When Monitored:
The ORC monitors the status of the seat belt switch circuits at power up and every 60 ms thereafter while the ignition is in on.
- Set Condition:
This DTC sets when the ORC detects the seat belt switch circuits have become shorted to voltage for more than 2.5 seconds. This DTC transitions from active to stored when the module sees a recovery from the shorted to voltage condition for greater than five seconds.
1. VERIFY ACTIVE DTC
NOTE: Make sure the battery is fully charged.
1. Turn the ignition on.
2. With the scan tool, read all ORC DTCs.
Does the scan tool display active B1B55-1ST ROW PASSENGER SEAT BELT SENSOR CIRCUIT HIGH?
Yes
- Go To 2
No
- Perform the AIRBAG SYSTEM INTERMITTENT TEST. . Airbag System Intermittent Condition Test
2. (R58) PASSENGER SEAT BELT SWITCH SIGNAL CIRCUIT SHORTED TO VOLTAGE
WARNING: Turn the ignition off, disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury.
1. Disconnect the Passenger Seat Belt Buckle Tensioner connector containing the Seat Belt Switch circuits.
2. Disconnect the ORC connector.
NOTE: Check connectors - Clean and repair as necessary.
3. Connect the SRS Load Tool Adapter 8443-32-R to the ORC connectors.
WARNING: Turn the ignition on, then reconnect the 12-volt battery. Wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury.
4. Measure the voltage of the (R58) Passenger Seat Belt Switch Signal circuit between the SRS Load Tool Adapter 8443-32-R cavity C2-25 and ground.
Is there any voltage present on the circuit?
Yes
- WARNING: Turn the ignition off, disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury.
Repair the (R58) Passenger Seat Belt Switch Signal circuit for a short to battery.
- Perform the AIRBAG SYSTEM VERIFICATION TEST. Airbag System Verification Test.
No
- Go To 3
3. (R60) PASSENGER SEAT BELT SWITCH GROUND CIRCUIT SHORTED TO VOLTAGE
1. Measure the voltage of the (R60) Passenger Seat Belt Switch Ground circuit between the SRS Load Tool Adapter 8443-32-R cavity C2-28 and ground.
Is there any voltage present on the circuit?
Yes
- WARNING: Turn the ignition off, disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury.
Repair or replace the (R60) Passenger Seat Belt Switch Ground circuit for a short to battery.
- Perform the AIRBAG SYSTEM VERIFICATION TEST. Airbag System Verification Test.
No
- Go To 4
4. (R58) PASSENGER SEAT BELT SWITCH SIGNAL CIRCUIT FOR AN OPEN
WARNING: Turn the ignition off, disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury.
1. Measure the resistance of the (R58) Passenger Seat Belt Switch Signal circuit between the Passenger Seat Belt Buckle Tensioner connector cavity 3 and the SRS Load Tool Adapter 8443-32-R cavity C2-25.
Is the resistance below 1.0 Ohm?
Yes
- Go To 5
No
- Repair or replace the (R58) Passenger Seat Belt Switch Signal circuit for an open or high resistance.
- Perform the AIRBAG SYSTEM VERIFICATION TEST. Airbag System Verification Test.
5. (R60) PASSENGER SEAT BELT SWITCH GROUND CIRCUIT FOR AN OPEN
1. Measure the resistance of the (R60) Passenger Seat Belt Switch Ground circuit between the Passenger Seat Belt Buckle Tensioner connector cavity 4 and the SRS Load Tool Adapter 8443-32 cavity C2-28.
Is the resistance below 1.0 Ohm?
Yes
- Go To 6
No
- Repair or replace the (R60) Passenger Seat Belt Switch Ground circuit for an open or high resistance.
- Perform the AIRBAG SYSTEM VERIFICATION TEST. Airbag System Verification Test.
6. CHECK OPERATION OF THE 1st ROW PASSENGER SEAT BELT SWITCH
WARNING: Turn the ignition off, disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury.
1. Replace the Passenger Seat Belt Switch.
2. Reconnect the vehicle body harness to the switch.
WARNING: Turn the ignition on, then reconnect the 12-volt battery. Wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury.
3. Connect the scan tool to the Data Link Connector - use the most current software available.
4. Use the scan tool and erase all codes in the ORC.
5. Turn the ignition off, and wait 15 seconds before turning the Ignition On.
6. Wait one minute, and read active codes.
Did the active B1B56-1st ROW PASSENGER SEAT BELT SENSOR CIRCUIT OPEN DTC return?
Yes
- WARNING: If the Occupant Restraint Controller (ORC) is dropped at any time, it must be replaced. Failure to follow these instructions may result in possible serious or fatal injury.
- WARNING: Turn the ignition off, disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury.
- Replace the ORC.
- Perform the AIRBAG SYSTEM VERIFICATION TEST. Airbag System Verification Test.
No
- Repair is complete.
- Perform the AIRBAG SYSTEM VERIFICATION TEST. Airbag System Verification Test.