B1B8E-DRIVER SEAT TRACK POSITION SENSOR CIRCUIT HIGH





For a complete wiring diagram Refer to Section 8W.



Possible Causes
DRIVER SEAT HARNESS IMPROPERLY ROUTED
DRIVER SEAT HARNESS WIRES CHAFED, PIERCED, PINCHED, PARTIALLY BROKEN
DRIVER SEAT HARNESS CONNECTOR TERMINALS BROKEN, BENT, PUSHED OUT, SPREAD, CORRODED, CONTAMINATED
(R261) DRIVER SEAT POSITION SENSOR DATA CIRCUIT SHORTED TO VOLTAGE
(R263) DRIVER SEAT POSITION SENSOR VOLTAGE CIRCUIT SHORTED TO VOLTAGE
(R261) DRIVER SEAT POSITION SENSOR DATA CIRCUIT SHORTED TO (R263) DRIVER SEAT POSITION SENSOR VOLTAGE CIRCUIT
DRIVER SEAT TRACK POSITION SENSOR
OCCUPANT RESTRAINT CONTROLLER (ORC)




Diagnostic Test

1. IDENTIFYING VEHICLE EQUIPMENT

NOTE: Ensure the battery is fully charged.


Turn the ignition on.
With the scan tool, read ORC active DTC.

Does the scan tool display active DTC: B1B8E-DRIVER SEAT TRACK POSITION SENSOR CIRCUIT HIGH?

Yes


No


Diagnostic Test

2. CHECK FOR ACTIVE INTERNAL FAULTS, IGNITION FAULTS, AND BATTERY FAULTS IN THE OCCUPANT RESTRAINT CONTROLLER (ORC)

With the scan tool, read Occupant Restraint Controller (ORC) DTC.

Does the scan tool display any active DTC relating to internal faults, ignition faults, or battery faults?

Yes


No

3. INSPECT DRIVER 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 driver 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


No

4. VERIFY THAT DRIVER SEAT HARNESS IS ROUTED CORRECTLY

Verify that the driver seat harness is routed correctly.

Is the Driver Seat Harness routed correctly?

Yes


No

5. CHECK FOR DTC B1B8E-DRIVER SEAT TRACK POSITION SENSOR CIRCUIT HIGH WITH DRIVER 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 Driver 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 DTC.

Does the scan tool display: B1B8E-DRIVER SEAT TRACK POSITION SENSOR CIRCUIT HIGH?

Yes


No

6. CHECK (R261) DRIVE SEAT POSITION SENSOR DATA CIRCUIT AND (R263) DRIVE SEAT POSITION SENSOR VOLTAGE CIRCUIT FOR A SHORT TO VOLTAGE


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


Disconnect the ORC connectors.

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


Measure the voltage of the (R261) Driver Seat Position Sensor Data circuit at the Driver Seat Track Position Sensor connector cavity 1.
Measure the voltage of the (R263) Driver Seat Position Sensor Voltage circuit at the Driver Seat Track Position Sensor connector cavity 2.

Is the voltage above 0.2 volts on either circuit?

Yes


No

7. CHECK (R261) DRIVER SEAT POSITION SENSOR DATA CIRCUIT FOR A SHORT TO (R263) DRIVER SEAT POSITION SENSOR VOLTAGE 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 (R261) Driver Seat Position Sensor Data circuit cavity 1 and the (R263) Driver Seat Position Sensor Voltage circuit cavity 2 in the Driver Seat Track Position Sensor connector.

Is the resistance below 10k ohms?

Yes


No

8. TEST FOR AN INTERMITTENT CONDITION

With the scan tool, record and erase all DTC from the OCM.
If any ACTIVE codes are present they must be resolved before diagnosing any stored codes.

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 wiring and connectors.
Look for chafed, pierced, pinched, or partially broken wires and broken, bent, pushed out, spread, corroded, or contaminated terminals.
The following additional checks may assist you in identifying a possible intermittent problem.
Reconnect any disconnected components and harness connector.

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


With the scan tool monitor active codes as you work through the following steps.

WARNING: To avoid serious or fatal injury, maintain a safe distance from all airbags while performing the following steps.


Wiggle the wiring harness and connectors of the related airbag circuit or component.
If only stored codes return continue the test until the problem area has been isolated.
In the previous steps you have attempted to recreate the conditions responsible for setting active DTC in question.

Are any ACTIVE DTC present?

Yes


No