B1007

B1007-DRIVER SEAT BELT SWITCH CIRCUIT RESISTANCE TOO LARGE / SHORT TO BATTERY / DISCONNECTION [ZH]




For a complete wiring diagram Consult Diagrams/Electrical.

- When Monitored: With ignition on. The Occupant Restraint Controller (ORC) monitors the resistance of the Driver Seat Belt Switch circuits.
- Set Condition: The Occupant Restraint Controller (ORC) has detected abnormally high voltage, low resistance, high resistance or an open circuit on one or both of the Driver Seat Belt Switch circuits.





Diagnostic Test

1. WITH THE SCAN TOOL, READ DTCs
NOTE: Ensure the battery is fully charged.

Turn the ignition on.
With the scan tool, read ORC DTCs.
Does the scan tool display active DTC?

Yes

- Go to 2

No

- Go to 6

2. WITH THE SCAN TOOL, READ ACTIVE DTCs
WARNING: To avoid serious or fatal injury, turn the ignition off, disconnect the battery and wait two minutes before proceeding.

Disconnect the Driver Seat Belt Switch connector.

NOTE: Check connectors - Clean/repair as necessary.

Connect a jumper wire between Driver Seat Belt Switch line 1 and Line 2 at the Driver Seat Belt Switch connector.

WARNING: To avoid serious or fatal injury, turn the ignition on, then reconnect the battery.

With the Scan Tool, read the active DTCs.
Does the Scan Tool display an active: B1006-DRIVER SEAT BELT SWITCH CIRCUIT RESISTANCE TOO SMALL / SHORT TO GROUND [ZH]?

Yes

- Go To 3

No

- Replace the Driver Seat Belt Switch.
- Perform *AIRBAG VERIFICATION TEST. Airbag System Verification Test

3. MEASURE THE RESISTANCE OF THE DRIVER SEAT BELT SWITCH LINE 1 CIRCUIT
WARNING: To avoid serious or fatal injury, turn the ignition off, disconnect the battery and wait two minutes before proceeding.

Disconnect the ORC harness connector.

NOTE: Check connectors - Clean/repair as necessary.

Connect the Load Tool ORC 8443-33 Adapter to the ORC connector.
Measure the resistance of the Driver Seat Belt Switch Line 1 circuit between the Driver Seat Belt Switch connector and the 8443-33 ORC Adapter.
Is the resistance below 1.0 ohm?

Yes

- Go To 4

No

- Repair the open Driver Seat Belt Switch Line 1 circuit.
- Perform *AIRBAG VERIFICATION TEST. Airbag System Verification Test

4. MEASURE THE RESISTANCE OF THE DRIVER SEAT BELT SWITCH LINE 2 CIRCUIT
Measure the resistance of the Driver Seat Belt Switch Line 2 circuit between the Driver Seat Belt Switch connector and the 8443-33 ORC Adapter.
Is the resistance below 1.0 ohm?

Yes

- Go To5

No

- Repair the open Driver Seat Belt Switch Line 2 circuit.
- Perform *AIRBAG VERIFICATION TEST. Airbag System Verification Test

5. MEASURE THE VOLTAGE ON THE DRIVER SEAT BELT SWITCH CIRCUIT
WARNING: To avoid serious or fatal injury, turn the ignition on, then reconnect the battery.

Measure the voltage on the Driver Seat Belt Switch Line 1 circuit between the Driver Seat Belt Switch ground.
Measure the voltage on the Driver Seat Belt Switch Line 2 circuit between the Driver Seat Belt Switch ground.
Is the resistance below 1.0 ohm on either circuit?

Yes

- Repair the Driver Seat Belt Switch circuits for a short to battery.
- Perform *AIRBAG VERIFICATION TEST. Airbag System Verification Test

No

WARNING: To avoid serious or fatal injury, turn the ignition off, disconnect the battery and wait two minutes before proceeding.

WARNING: If the Occupant Restraint Controller (ORC) is dropped at any time, it must be replaced. Failure to take the proper precautions can result in accidental airbag deployment and serious or fatal injury.

- Replace the Occupant Restraint Controller.
- Perform *AIRBAG VERIFICATION TEST. Airbag System Verification Test

6. WITH THE SCAN TOOL, READ DTCs
NOTE: Ensure the battery is fully charged.

With the Scan Tool, record and erase all Restraint System DTCs.
All active codes must be resolved before diagnosing any stored codes.
Maintain a safe distance from all airbags while performing the following steps.
With the Scan Tool, monitor active codes as you work through the system.

NOTE: Read the DTCs with the Passenger Airbag On/Off Switch in both switch positions.

Wiggle the wiring harness and connectors of the appropriate airbag system and rotate the steering wheel from stop to stop.

NOTE: Check connectors - Clean/repair as necessary.

You have just attempted to simulate the condition that initially set the trouble code message.
The following additional checks may assist you in identifying a possible intermittent problem:
- Visually inspect related wire harness connectors. Look for broken, bent, pushed out, spread, corroded or contaminated terminals.
- Visually inspect the related harnesses. Look for chafed, pierced, pinched or partially broken wire.
- Refer to any Wiring Diagrams that may apply.

Did the DTC become ACTIVE?

Yes

- Diagnose and repair the DTC(s).

No

- No problem found at this time. Erase all codes before returning vehicle to customer.