Occupant Restraint Controller (ORC)

9033-SEAT BELT BUCKLE CENTER SWITCH CIRCUIT OPEN

For a complete wiring diagram, Refer to the Wiring Information Electrical Diagrams.

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

- Set Condition:
The DTC will be set active if the ORC detects an open or high resistance on the seat belt buckle center switch circuits.





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

1. VERIFY ACTIVE 9033-MIDDLE SEAT BELT BUCKLE SENSE CIRCUIT OPEN 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: 9033-MIDDLE SEAT BELT BUCKLE SENSE CIRCUIT OPEN?

Yes

- Go To 2

No

- Perform the RESTRAINTS SYSTEM INTERMITTENT TEST. Initial Inspection and Diagnostic Overview.

2. VERIFY SEAT BELT BUCKLE CENTER SWITCH CIRCUITS 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. Disconnect the Seat Belt Buckle Center Switch connector.
2. Disconnect the ORC connectors.

NOTE: Check connectors - Clean and repair as necessary.

3. Connect the Load Tool ORC 8443-28 Adapter to the ORC connectors.
4. Measure the resistance of the Seat Belt Buckle Center Switch Sense circuit between the Seat Belt Buckle Center Switch connector and the ORC Adapter cavity.

Is the resistance greater than 1 Ohm?

Yes

- Repair the open Seat Belt Buckle Center Switch circuit.
- Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Verification Tests.

No

- Go To 3

3. VERIFY DRIVER SEAT BELT SWITCH CIRCUITS OPEN
1. Measure the resistance of the Ground circuit between the Seat Belt Buckle Center Switch connector and ground.

Is the resistance greater than 1 Ohm on either circuit?

Yes

- Repair the open Ground circuit.
- Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Verification Tests.

No

- Go To 4

4. CHECK OPERATION OF THE SEAT BELT BUCKLE CENTER SWITCH
1. Replace the Driver Seat Belt Switch.
2. Reconnect the vehicle body harness to the 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. 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 five seconds before turning the Ignition On.
7. Wait one minute, and read active codes and if there are none present read the stored codes.

Did the active: 9033-MIDDLE SEAT BELT BUCKLE SENSE CIRCUIT OPEN DTC return?

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 Occupant Restraint Controller.
- Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Verification Tests.

No

- Repair is complete.
- Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Verification Tests.