B1B96

B1B96-PASSENGER SEAT TRACK POSITION SENSOR CIRCUIT SHORTED TOGETHER

For a complete wiring diagram REFER to DIAGRAMS/ELECTRICAL .

Theory of Operation


When powered, the Occupant Restraint Controller (ORC) 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 (ORC) 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 < 5 k Ohm.






Diagnostic Test


1. CHECK FOR ACTIVE INTERNAL FAULTS, IGNITION FAULTS, AND BATTERY FAULTS IN THE OCCUPANT RESTRAINT CONTROLLER (ORC)
NOTE: Ensure the battery is fully charged.

With the scan tool, read Occupant Restraint Controller (ORC) DTCs.
Does the scan tool display any active DTCs relating to internal faults, ignition faults, or battery faults?

Yes


- Diagnose and repair the DTCs.


No


- Go To 2


2. VERIFY THAT DTC B1B96-PASSENGER SEAT TRACK POSITION SENSOR CIRCUIT SHORTED TOGETHER IS ACTIVE
Does the scan tool display active: B1B96-PASSENGER SEAT TRACK POSITION SENSOR CIRCUIT SHORTED TOGETHER?

Yes


- Go To 3


No


- Perform *RESTRAINTS SYSTEM INTERMITTENT TEST.Restraints System Intermittent Test.


3. INSPECT PASSENGER SEAT HARNESS WIRES AND CONNECTORS

WARNING: 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

NOTE: Do not attempt to repair the Seat Harness. Replace the Seat Harness if any of these conditions exist

- Replace the Passenger Seat Harness.
- Perform *RESTRAINTS SYSTEM VERIFICATION TEST.Restraints System Verification Test


No


- Go To 4


4. VERIFY THAT 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 5


No


- Reroute the Passenger Seat Harness as necessary.
- Perform *RESTRAINTS SYSTEM VERIFICATION TEST.Restraints System Verification Test


5. CHECK FOR DTC B1B96-PASSENGER SEAT TRACK POSITION SENSOR CIRCUIT SHORTED TOGETHER WITH PASSENGER SEAT TRACK POSITION SENSOR DISCONNECTED
WARNING: To avoid serious or fatal injury, turn the ignition off, disconnect the battery and wait two minutes before proceeding.

Disconnect the Passenger Seat Track Position Sensor connector.

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

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 6


No

WARNING: To avoid serious or fatal injury, turn the ignition off, disconnect the battery and wait two minutes before proceeding.
Replace the Passenger Seat Track Position Sensor.
- Perform *RESTRAINTS SYSTEM VERIFICATION TEST.Restraints System Verification Test


6. (R262) PASSENGER SEAT TRACK POSITION SENSOR SIGNAL CIRCUIT AND (R264) PASSENGER SEAT TRACK POSITION SENSOR SUPPLY CIRCUIT SHORTED TO GROUND
WARNING: To avoid serious or fatal injury, turn the ignition off, disconnect the battery and wait two minutes before proceeding.

Measure the resistance between ground and the (R262) Passenger Seat Track Position Sensor Signal circuit.
Measure the resistance between ground and the (R264) Passenger Seat Track Position Sensor Supply circuit.
Is the resistance below 5k ohms on either circuit?

Yes

NOTE: Do not attempt to repair the Seat Harness. Replace the Seat Harness if any of these conditions exist

- Replace the Passenger Seat Harness.
- Perform *RESTRAINTS SYSTEM VERIFICATION TEST.Restraints System Verification Test


No


- Go To 7


7. (R262) PASSENGER SEAT TRACK POSITION SENSOR SIGNAL CIRCUIT SHORTED TO (R264) PASSENGER SEAT TRACK POSITION SENSOR SUPPLY CIRCUIT
WARNING: To avoid serious or fatal injury, turn the ignition off, disconnect the battery and wait two minutes before proceeding.

Measure the resistance between the (R262) Passenger Seat Track Position Sensor Signal circuit and the (R264) Passenger Seat Track Position Sensor Supply circuit in the Passenger Seat Track Position Sensor connector.
Is the resistance below 5k ohms?

Yes

NOTE: Do not attempt to repair the Seat Harness. Replace the Seat Harness if any of these conditions exist

- Replace the Passenger Seat Harness.
- Perform *RESTRAINTS SYSTEM VERIFICATION TEST.Restraints System Verification Test


No


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