For a complete wiring diagram Refer to Section 8W.When Monitored:While the CAN bus ignition status is in IGN_RUN and the module is configured for a Seat Track Position Sensor, the module checks the sensor input current ranges.Set Condition:This DTC may set when the module detects that the sensor input current is below 1 mA.Possible CausesDRIVER SEAT HARNESS IMPROPERLY ROUTEDDRIVER SEAT HARNESS WIRES CHAFED, PIERCED, PINCHED, PARTIALLY BROKENDRIVER 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 CIRCUITDRIVER SEAT TRACK POSITION SENSOROCCUPANT RESTRAINT CONTROLLER (ORC)1. 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?YesDiagnose and repair the DTC. Refer to the Table of Contents in this Section for a complete list of symptoms.NoGo To 22. VERIFY THAT DTC B1B8F-DRIVER SEAT TRACK POSITION SENSOR CIRCUIT OPEN IS ACTIVEDoes the scan tool display active: B1B8F-DRIVER SEAT TRACK POSITION SENSOR CIRCUIT OPEN?YesGo To 3NoGo To 83. INSPECT DRIVER SEAT HARNESS WIRES AND CONNECTORSTo 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?YesDo not attempt to repair the Seat Harness. Replace the Seat Harness if any of these conditions existReplace the Driver Seat Harness in accordance with the Service Information.Perform *ORC VERIFICATION TEST - VER 1.NoGo To 44. VERIFY THAT DRIVER SEAT HARNESS IS ROUTED CORRECTLYVerify that the Driver Seat Harness is routed correctly.Is the Driver Seat Harness routed correctly?YesGo To 5NoReroute the Driver Seat Harness as necessary.Perform *ORC VERIFICATION TEST - VER 1.5. CHECK FOR DTC B1B8F-DRIVER SEAT TRACK POSITION SENSOR CIRCUIT OPEN WITH DRIVER SEAT TRACK POSITION SENSOR DISCONNECTEDTo 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.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: B1B8F-DRIVER SEAT TRACK POSITION SENSOR CIRCUIT OPEN?YesGo To 6NoTo avoid serious or fatal injury, turn the ignition off, disconnect the battery and wait two minutes before proceeding.Replace the Driver Seat Track Position Sensor in accordance with the service information.Perform the *ORC VERIFICATION TEST-VER 1.6. CHECK (R261) DRIVER SEAT POSITION SENSOR DATA CIRCUIT AND (R263) DRIVER SEAT POSITION SENSOR VOLTAGE CIRCUIT FOR A SHORT TO VOLTAGE

To avoid serious or fatal injury, turn the ignition off, disconnect the battery and wait two minutes before proceeding.Disconnect the ORC connectors.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 between the Driver Seat Track Position Sensor connector and ground.Measure the voltage of the (R263) Driver Seat Position Sensor Voltage circuit between the Driver Seat Track Position Sensor connector and ground.Is the voltage above 0.2 volts on either circuit?YesDo not attempt to repair the Seat Harness. Replace the Seat Harness if any of these conditions existTo avoid serious or fatal injury, turn the ignition off, disconnect the battery and wait two minutes before proceeding.Replace the Driver Seat Harness in accordance with the Service Information.Perform the *ORC VERIFICATION TEST-VER 1.NoGo To 77. CHECK (R261) DRIVER SEAT POSITION SENSOR DATA CIRCUIT FOR A SHORT TO (R263) DRIVER SEAT POSITION SENSOR VOLTAGE CIRCUIT

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 and the (R263) Driver Seat Position Sensor Voltage circuit in the Driver Seat Track Position Sensor connector.Is the resistance below 10k ohms?YesDo not attempt to repair the Seat Harness. Replace the Seat Harness if any of these conditions existReplace the Driver Seat Harness in accordance with the service information.Perform the *ORC VERIFICATION TEST-VER 1.NoReplace the ORC in accordance with the Service information.Perform the *ORC VERIFICATION TEST-VER 1.8. TEST FOR AN INTERMITTENT CONDITIONWith the scan tool, record and erase all DTC from the ORC.If any ACTIVE codes are present they must be resolved before diagnosing any stored codes.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.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.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?YesSelect the appropriate symptom from Symptom List.NoNo problem found at this time. Erase all codes before returning vehicle to customer.