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Diagnostic Test

WARNING: This page is about a different car, the 2006 Dodge Magnum, 2006 Dodge Charger, and 2006 Chrysler 300. However, it is still accessible from the selected car via links, so may be relevant.
  1. 1)  IDENTIFYING VEHICLE EQUIPMENT  
    NOTE: Ensure the battery is fully charged.
    NOTE: The Seat Track Position Sensor(s) will be wired to the Occupant Restraint Controller (ORC) if the vehicle is not equipped with the Occupant Classification Module (OCM).

    Turn the ignition on.

    With the scan tool, read ORC and if equipped OCM active DTCs.

    Select the module reporting the Seat Track Position Sensor DTC(s) 

    ORC 

    1. Go To  8).

    OCM 

    1. Go To 2.
  2. 2)  CHECK FOR ACTIVE INTERNAL FAULTS, IGNITION FAULTS, AND BATTERY FAULTS IN THE OCCUPANT CLASSIFICATION MODULE (OCM) 

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

    Yes 

    1. Diagnose and repair the DTCs. Refer to DIAGNOSTIC CODE INDEX for a complete list of symptoms.

    No 

    1. Go To 3.
  3. 3)  VERIFY THAT DTC B1B8D-DRIVER SEAT TRACK POSITION SENSOR CIRCUIT LOW IS ACTIVE 

    Does the scan tool display active: B1B8D-DRIVER SEAT TRACK POSITION SENSOR CIRCUIT LOW? 

    Yes  

    1. Go To 4.

    No 

    1. Go To  14).
  4. 4)  INSPECT DRIVER SEAT HARNESS WIRES AND CONNECTORS 
    WARNING: To avoid personal injury or death, 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 

    NOTE: Do not attempt to repair the Seat Harness. Replace the Seat Harness if the condition inspecting or testing for is present in the Seat Harness.
    1. Replace the Driver Seat Harness in accordance with the Service Information.
    2. Perform *OCS VERIFICATION TEST - VER 1 .

    No 

    1. Go To 5.
  5. 5)  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 

    1. Go To 6.

    No 

    1. Reroute the Driver Seat Harness as necessary.
    2. Perform *OCS VERIFICATION TEST - VER 1 .
  6. 6)  CHECK (R261) SEAT POSITION SENSOR DATA-DRIVER CIRCUIT AND (R263) SEAT POSITION SENSOR VOLTAGE-DRIVER CIRCUIT FOR A SHORT TO GROUND 
    Fig 1: Checking Driver Seat Track Position Sensor Circuits For Short To Ground
    GC0009915Courtesy of DAIMLERCHRYSLER CORP.

    Measure the resistance between ground and the (R261) Seat Position Sensor Data-Driver circuit.

    Measure the resistance between ground and the (R263) Seat Position Sensor Voltage-Driver circuit.

    Is the resistance below 10k ohms on either circuit? 

    Yes 

    NOTE: Do not attempt to repair the Seat Harness. Replace the Seat Harness if the condition inspecting or testing for is present in the Seat Harness.
    1. Replace the Driver Seat Harness in accordance with the service information.
    2. Perform *OCS VERIFICATION TEST - VER 1 .

    No 

    1. Go To 7.
  7. 7)  CHECK (R261) SEAT POSITION SENSOR DATA-DRIVER CIRCUIT AND (R263) SEAT POSITION SENSOR VOLTAGE-DRIVER CIRCUIT FOR AN OPEN 
    Fig 2: Checking Driver Seat Track Position Sensor Circuits
    GC0009916Courtesy of DAIMLERCHRYSLER CORP.

    Disconnect the OCM C1 connector.

    Measure the resistance of the (R261) Seat Position Sensor Data-Driver circuit between the OCM C1 connector and the Driver Seat Track Position Sensor connector.

    Measure the resistance of the (R263) Seat Position Sensor Voltage-Driver circuit between the OCM C1 connector and the Driver Seat Track Position Sensor connector.

    Is the resistance of either circuit above 5.0 ohms? 

    Yes 

    NOTE: Do not attempt to repair the Seat Harness. Replace the Seat Harness if the condition inspecting or testing for is present in the Seat Harness.
    1. Replace the Driver Seat Harness in accordance with the Service Information.
    2. Perform *OCS VERIFICATION TEST - VER 1 .

    No 

      WARNING: To avoid personal injury or death, turn the ignition off, disconnect the battery and wait two minutes before proceeding.
      WARNING: If the Occupant Classification module (OCM) is dropped at any time, it must be replaced. Failure to take the proper precautions can result in accidental airbag deployment and personal injury or death.
    1. Replace the OCM in accordance with the service information.
    2. Perform *OCS VERIFICATION TEST - VER 1 .
  8. 8)  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) DTCs.

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

    Yes 

    1. Diagnose and repair the DTCs. Refer to DIAGNOSTIC CODE INDEX for a complete list of symptoms.

    No 

    1. Go To 9.
  9. 9)  VERIFY THAT DTC B1B8D-DRIVER SEAT TRACK POSITION SENSOR CIRCUIT LOW IS ACTIVE 

    Does the scan tool display active: B1B8D-DRIVER SEAT TRACK POSITION SENSOR CIRCUIT LOW? 

    Yes  

    1. Go To 10.

    No 

    1. Go To  14).
  10. 10)  INSPECT DRIVER SEAT HARNESS WIRES AND CONNECTORS 
    WARNING: To avoid personal injury or death, 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 

    NOTE: Do not attempt to repair the Seat Harness. Replace the Seat Harness if the condition inspecting or testing for is present in the Seat Harness.
    1. Replace the Driver Seat Harness in accordance with the Service Information.
    2. Perform the *ORC VERIFICATION TEST - VER 1 .

    No 

    1. Go To 11.
  11. 11)  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 

    1. Go To 12.

    No 

    1. Reroute the Driver Seat Harness as necessary.
    2. Perform the *ORC VERIFICATION TEST - VER 1 .
  12. 12)  CHECK (R261) SEAT POSITION SENSOR DATA-DRIVER CIRCUIT AND (R263) SEAT POSITION SENSOR VOLTAGE-DRIVER CIRCUIT FOR A SHORT TO GROUND 
    Fig 3: Checking Driver Seat Track Position Sensor Circuits For Short To Ground
    GC0009915Courtesy of DAIMLERCHRYSLER CORP.

    Measure the resistance between ground and the (R261) Seat Position Sensor Data-Driver circuit.

    Measure the resistance between ground and the (R263) Seat Position Sensor Voltage-Driver circuit.

    Is the resistance below 10k ohms on either circuit? 

    Yes 

    NOTE: Do not attempt to repair the Seat Harness. Replace the Seat Harness if the condition inspecting or testing for is present in the Seat Harness.
    1. Replace the Driver Seat Harness in accordance with the service information.
    2. Perform the *ORC VERIFICATION TEST - VER 1 .

    No 

    1. Go To 13.
  13. 13)  CHECK (R261) SEAT POSITION SENSOR DATA-DRIVER CIRCUIT AND (R263) SEAT POSITION SENSOR VOLTAGE-DRIVER CIRCUIT FOR AN OPEN 
    Fig 4: Measuring Resistance Of Seat Position Sensor
    GC0040853Courtesy of DAIMLERCHRYSLER CORP.

    Disconnect the ORC C1 connector.

    Measure the resistance of the (R261) Seat Position Sensor Data-Driver circuit between the ORC-C1 connector and the Driver Seat Track Position Sensor connector.

    Measure the resistance of the (R263) Seat Position Sensor Voltage-Driver circuit between the ORC-C1 connector and the Driver Seat Track Position Sensor connector.

    Is the resistance of either circuit above 5.0 ohms? 

    Yes 

    NOTE: Do not attempt to repair the Seat Harness. Replace the Seat Harness if the condition inspecting or testing for is present in the Seat Harness.
    1. Replace the Driver Seat Harness in accordance with the Service Information.
    2. Perform the *ORC VERIFICATION TEST - VER 1 .

    No 

      WARNING: To avoid personal injury or death, 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 personal injury or death.
    1. Replace the Occupant Restraint Controller (ORC ) in accordance with the service information.
    2. Perform the *ORC VERIFICATION TEST - VER 1 .
  14. 14)  TEST FOR AN INTERMITTENT CONDITION 

    With the scan tool, record and erase all DTC's from the OCM.

    If any ACTIVE codes are present they must be resolved before diagnosing any stored codes.

    WARNING: To avoid personal injury or death, 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 personal injury or death, 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 personal injury or death, 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 DTCs present? 

    Yes 

    1. Select the appropriate symptom from Symptom List.

    No 

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