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B0050-11






B0050-11-DRIVER SEATBELT SENSOR - CIRCUIT SHORT TO GROUND

Special Tools:










For a complete wiring diagram, refer to the Wiring Information.

Theory of Operation

When powered, the Occupant Restraint Controller (ORC) sends a test current across the Driver Seat Belt Switch circuits every 60 ms to verify the integrity of the switch and wiring. The DTC will set if the circuits are shorted together or to ground for 2.5 seconds and the code will transitions from active to stored when the current return to normal range for five seconds.

- When Monitored:
While the ignition on and the Occupant Restraint Controller (ORC) is configured for a Driver Seat Belt Switch, the ORC checks the switch input current ranges.

- Set Condition:
If the ORC detects the passenger seat belt buckle switch circuits shorted to ground.





Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Restraints System Pre-Diagnostic Procedure.

1. VERIFY ACTIVE DTC

NOTE: Make sure the battery is fully charged.

1. Turn the ignition on.
2. With the scan tool, read ORC DTCs.

Does the scan tool display active B0050-11-DRIVER SEATBELT SENSOR - CIRCUIT SHORT TO GROUND DTC?

Yes

- Go To 2

No

- Perform the RESTRAINTS SYSTEM INTERMITTENT TEST. Restraints System Intermittent Condition Test

2. CHECK DRIVER SEAT BELT SWITCH CIRCUITS FOR A SHORT TO GROUND





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 Driver Seat Belt Buckle Switch harness connector.
2. Disconnect the ORC harness connectors.

NOTE: Check connectors - Clean and repair as necessary.

3. Connect the SRS Load Tool Adapter to the ORC C2 harness connectors.
4. Measure the resistance of the (R57) Driver Seat Belt Buckle Switch Sense circuit between the Driver Seat Belt Buckle Switch harness connector cavity 2 and ground.
5. Measure the resistance of the (R59) Driver Seat Belt Buckle Switch Ground circuit between the Driver Seat Belt Switch harness connector cavity 1 and ground.

Is the resistance below 10k Ohms on any of these circuits?

Yes

- Repair the (R57) or (R59) Driver Seat Belt Buckle Switch circuits for a short to ground.
- Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Restraints System Verification Test.

No

- Go To 4

3. CHECK DRIVER SEAT BELT SWITCH CIRCUITS FOR A SHORT TO GROUND




1. Measure the resistance between the (R57) Driver Seat Belt Buckle Switch Sense circuit and (R59) Driver Seat Belt Buckle Switch Ground circuit at the Driver Seat Belt Buckle Switch harness connector.

Is the resistance below 10k Ohms on any of these circuits?

Yes

- Repair the (R57) Driver Seat Belt Buckle Switch Sense circuit for a short to the (R59) Driver Seat Belt Buckle Switch Ground circuit.
- Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Restraints System Verification Test.

No

- Go To 4

4. CHECK OPERATION OF THE DRIVER SEAT BELT SWITCH
1. Replace the Driver Seat Belt Buckle Switch.
2. Reconnect the vehicle body harness connector to the Driver Seat Belt Buckle Switch.
3. Remove any special tools or jumper wires and reconnect all previously disconnected components - except the Battery.

WARNING: Turn the ignition on, then reconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury.

4. Connect the scan tool to the Data Link Connector - use the most current software available.
5. Use the scan tool and erase the stored codes in all airbag system modules.
6. Turn the Ignition OFF, and wait 15 seconds before turning the Ignition ON.
7. Wait one minute, and read active DTCs and if there are none present read the stored DTCs.

Does the scan tool display active B0050-11-DRIVER SEATBELT SENSOR - CIRCUIT SHORT TO GROUND DTC?

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.

- 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.

- Replace the ORC.
- Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Restraints System Verification Test.

No

- Repair is complete.
- Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Restraints System Verification Test.

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