B1B96
B1B96 - Passenger Seat Track Position Sensor Circuit Shorted Together
For a complete wiring diagram, refer to.
Theory of Operation
When powered, the occupant restraint controller sends a test current to the seat track position sensors to verify the integrity of the sensor and wiring. The use of the ORC connector adapter tool in the tests below provides a test point in place of the module.
• When Monitored: The occupant restraint controller monitors the status of the seat track position sensor circuit continuously.
• Set Condition: If the module detects that the sensor current is shorted together with a value above I ≥ 17.1 ~ 20.5 mA, or shorted to ground with a value of < 5K ohm.
Always perform the Pre - Diagnostic Troubleshooting procedure before proceeding.
Test Step 1 - Check for Active Internal Faults, Ignition Faults, and Battery Faults in the Occupant Restraint Controller
• Ensure the battery is fully charged.
• Turn the ignition ON.
• With the scan tool, read occupant restraint controller DTCs.
Does the scan tool display any active DTCs relating to internal faults, ignition faults, or battery faults?
Yes
• Diagnose and repair the DTCs. Refer to the table of contents in this section.
No
• Go to Test Step 2 => [ Test Step 2 - Verify DTC B1B96 - Passenger Seat Track Position Sensor
Circuit Shorted Together is Active ]
Test Step 2 - Verify DTC B1B96 - Passenger Seat Track Position Sensor Circuit Shorted Together is Active
• With the scan tool, read occupant restraint controller DTCs.
Does the scan tool display active B1B96 - Passenger Seat Track Position Sensor Circuit Shorted Together?
Yes
• Go to Test Step 3 => [ Test Step 3 - Inspect Passenger Seat Harness Wires and Connectors ]
No
• Perform the Restraints System Intermittent Test. Refer to => Non - DTC Based Diagnostics. ORC Restraints System Intermittent Test
Test Step 3 - Inspect Passenger Seat Harness Wires and Connectors
to avoid serious or fatal injury, turn the ignition OFF, disconnect the battery and wait two minutes before proceeding.
• Using the wiring diagram/schematic as a guide, inspect the passenger seat harness wiring and connectors. Look for chafed, pierced, pinched, or partially broken wires and broken, bent, pushed out, spread, corroded, or contaminated terminals.
Are any of these conditions present?
Yes
• Replace the passenger seat harness.
• Perform the Restraints System Intermittent Test. Refer to => Non - DTC Based Diagnostics. ORC Restraints System Intermittent Test
• Do not attempt to repair the seat harness. Replace the seat harness if any of these conditions exist.
No
• Go to Test Step 4 => [ Test Step 4 - Verify that the Passenger Seat Harness is Routed Correctly ]
Test Step 4 - Verify that the Passenger Seat Harness is Routed Correctly
• Verify that the passenger seat harness is routed correctly.
Is the Passenger Seat Harness routed correctly?
Yes
• Go to Test Step 5 => [ Test Step 5 - Check for DTC B1B96 - Passenger Seat Track Position
Sensor Circuit Shorted Together with Passenger Seat Track Position
Sensor Disconnected ]
No
• Reroute the passenger seat harness as necessary.
• Perform the Restraints System Intermittent Test. Refer to => Non - DTC Based Diagnostics. ORC Restraints System Intermittent Test
Test Step 5 - Check for DTC B1B96 - Passenger Seat Track Position Sensor Circuit Shorted Together with Passenger Seat Track Position Sensor Disconnected
• Disconnect the passenger seat track position sensor connector.
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.
• Wait two minutes, and then with the scan tool read ORC DTCs.
Does the scan tool display B1B96 - Passenger Seat Track Position Sensor Circuit Shorted Together?
Yes
• Go to Test Step 6 => [ Test Step 6 - Check Passenger Seat Track Position Sensor Supply Circuit
for a Short to Ground ]
No
• Replace the passenger seat track position sensor.
• Perform the Restraints System Intermittent Test. Refer to => Non - DTC Based Diagnostics. ORC Restraints System Intermittent Test
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.
Test Step 6 - Check Passenger Seat Track Position Sensor Supply Circuit for a Short to Ground
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.
• Disconnect the ORC connectors.
• Check connectors - Clean and repair as necessary.
• Connect the load tool 8443 ORC adaptor to the ORC connectors.
• Measure the resistance of the passenger seat track position sensor supply circuit between ground and the load tool 8443 ORC adaptor.
Is the resistance below 5K Ohms?
Yes
• Repair or replace the passenger seat track position sensor supply circuit for a short to ground.
• Perform the Restraints System Intermittent Test. Refer to => Non - DTC Based Diagnostics. ORC Restraints System Intermittent Test
• If the short is found in the seat harness, do not attempt to repair the seat harness. Replace the seat harness.
No
• Go to Test Step 7 => [ Test Step 7 - Check Passenger Seat Track Position Sensor Signal Circuit
for a Short to Passenger Seat Track Position Sensor Supply Circuit ]
Test Step 7 - Check Passenger Seat Track Position Sensor Signal Circuit for a Short to Passenger Seat Track Position Sensor Supply Circuit
• Measure the resistance between the passenger seat track position sensor signal circuit and the passenger seat track position sensor supply circuit at the load tool 8443 ORC adaptor.
Is the resistance below 5k ohms?
Yes
• Repair or replace the passenger seat track position sensor signal circuit for a short to the passenger seat track position sensor supply circuit.
• Perform the Restraints System Intermittent Test. Refer to => Non - DTC Based Diagnostics. ORC Restraints System Intermittent Test
• If the short is found in the seat harness, do not attempt to repair the seat harness. Replace the seat harness.
No
• Go to Test Step 8 => [ Test Step 8 - Check Passenger Seat Position Sensor Supply Circuit
for a Short to Driver Seat Position Sensor Data Circuit ]
Test Step 8 - Check Passenger Seat Position Sensor Supply Circuit for a Short to Driver Seat Position Sensor Data Circuit
• Measure the resistance between the passenger seat track position sensor supply circuit and the driver seat position sensor data circuit at the load tool 8443 ORC adaptor.
Is the resistance below 5k ohms?
Yes
• Repair or replace the passenger seat track position sensor supply circuit for a short to the driver seat position sensor data circuit.
• Perform the Restraints System Intermittent Test. Refer to => Non - DTC Based Diagnostics. ORC Restraints System Intermittent Test
• If the short is found in the seat harness, do not attempt to repair the seat harness. Replace the seat harness.
No
• Go to Test Step 9 => [ Test Step 9 - Check Passenger Seat Track Position Sensor Supply Circuit
for a Short to Passenger Seat Belt Switch Return ]
Test Step 9 - Check Passenger Seat Track Position Sensor Supply Circuit for a Short to Passenger Seat Belt Switch Return
• Measure the resistance between the passenger seat track position sensor supply circuit and the passenger seat belt switch return circuit at the load tool 8443 ORC adaptor.
Is the resistance below 5K Ohms?
Yes
• Repair or replace the passenger seat track position sensor supply circuit for a short to the passenger seat belt switch return circuit.
• Perform the Restraints System Intermittent Test. Refer to => Non - DTC Based Diagnostics. ORC Restraints System Intermittent Test
• If the short is found in the seat harness, do not attempt to repair the seat harness. Replace the seat harness.
No
• Replace the ORC.
• Perform the Restraints System Intermittent Test. Refer to => Non - DTC Based Diagnostics. ORC Restraints System Intermittent Test