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Home >> Jeep >> 2014 >> Wrangler Sahara, Standard Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 162 (Occupant Restraint Controller (Orc) - DTCS B1B00 To B1C19) >> DTC Troubleshooting >> B1C12-Driver Active Headrest Control Circuit Low >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different car, the 2016 Dodge Journey and 2015 Dodge Journey. However, it is still accessible from the selected car via links, so may be relevant.
  1. VERIFY ACTIVE DTC 
    NOTE:

    Make sure the battery is fully charged.

    1. Turn the ignition on.
    2. With the scan tool, read the ORC DTCs

      Does the scan tool display active B1C12-DRIVER ACTIVE HEADREST CONTROL CIRCUIT LOW DTC?

      Yes 

      • Go To  3

      No 

  2. CHECK FOR A SHORTED ACTIVE HEAD REST CIRCUIT IN DRIVER ACTIVE HEAD REST 
    NOTE:

    Please use the (special tool #10253, Tester, AHR Load) in testing the present status of the AHR signal circuit.

    Fig 1: Checking For Shorted Active Head Rest Circuit
    GC0138204Courtesy of CHRYSLER GROUP, LLC
    WARNING:

    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.

    1. Access the Driver Active Head Rest harness connector located in the driver seatback jumper harness.
    2. Disconnect the Driver Active Headrest harness connectors.
      NOTE:

      Check the connectors - Clean and repair as necessary.

      NOTE:

      Please use the (special tool #10253, Tester, AHR Load) in testing the present status of the AHR signal circuit.

    3. Connect the AHR Load Tool to the driver AHR seatback jumper harness connector going into the seatback and under the seat.
    4. If the vehicle is equipped with the standard key ignition, follow this ignition on warning.
      WARNING:

      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.

    5. If the vehicle is equipped with the keyless ignition, follow this ignition on warning.
      WARNING:

      Disconnect the 12-volt battery wait two minutes before proceeding, remove the ORC fuses, connect the 12-volt battery, wait two minutes before proceeding. Cycle the ignition to the On position, then reconnect the ORC fuses. Wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury.

    6. With the scan tool, read the active ORC DTCs.

      Does the scan tool display: B1C12-DRIVER ACTIVE HEADREST CONTROL CIRCUIT LOW?

      Yes 

      • Go To  3

      No 

      WARNING:

      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.

      • Replace the Driver Active Head Rest in accordance with the Service Information. Refer to HEADREST, REMOVAL .
  3. CHECK THE (R676) ACTIVE HEAD RESTRAINT 1ST ROW DRIVER SIGNAL CIRCUIT HARNESS FOR A SHORT TO GROUND 
    NOTE:

    The AHR connectors carry a shorting bar that should set a high code upon disconnecting the AHR connectors.

    WARNING:

    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.

    1. Access the Driver Active Headrest connector located in the driver seat back.
    2. Disconnect the Driver Active Headrest harness connector.
    3. If the vehicle is equipped with the standard key ignition, follow this ignition on warning.
      WARNING:

      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.

    4. If the vehicle is equipped with the keyless ignition, follow this ignition on warning.
      WARNING:

      Disconnect the 12-volt battery wait two minutes before proceeding, remove the ORC fuses, connect the 12-volt battery, wait two minutes before proceeding. Cycle the ignition to the On position, then reconnect the ORC fuses. Wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury.

      Does the scan tool display active B1C13-DRIVER ACTIVE HEADREST CONTROL CIRCUIT HIGH?

      Yes 

      • Turn the Ignition off.
        • WARNING:

        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.

      • Connect the Driver Active Headrest harness connector.
      • If the vehicle is equipped with the standard key ignition, follow this ignition on warning.
        WARNING:

        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.

        If the vehicle is equipped with the keyless ignition, follow this ignition on warning.

        WARNING:

        Disconnect the 12-volt battery wait two minutes before proceeding, remove the ORC fuses, connect the 12-volt battery, wait two minutes before proceeding. Cycle the ignition to the On position, then reconnect the ORC fuses. Wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury.

      • Wait 15 seconds before turning the Ignition On.
      • Use the scan tool and erase the ORC stored codes.
      • Wait one minute and read active codes.
      • If the B1C12-Driver Active Headrest Control Circuit Low DTC becomes active, replace the Driver Active Headrest in accordance with the Service Information. Refer to HEADREST, REMOVAL .

      No 

      • Go To  4
  4. CHECK THE (R676) ACTIVE HEAD RESTRAINT 1ST ROW DRIVER SIGNAL CIRCUIT FOR A SHORT TO GROUND IN THE DRIVER ACTIVE HEAD REST SEAT BACK JUMPER HARNESS 
    WARNING:

    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.

    NOTE:

    Inspect for damaged or bent terminals at the C313 underseat jumper harness connector. Reconnect the C313 connector.

    1. Reconnect the C313 underseat harness connector.
    2. If the vehicle is equipped with the standard key ignition, follow this ignition on warning.
      WARNING:

      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.

    3. If the vehicle is equipped with the keyless ignition, follow this ignition on warning.
      WARNING:

      Disconnect the 12-volt battery wait two minutes before proceeding, remove the ORC fuses, connect the 12-volt battery, wait two minutes before proceeding. Cycle the ignition to the On position, then reconnect the ORC fuses. Wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury.

      Does the scan tool display active B1C13-DRIVER ACTIVE HEADREST CONTROL CIRCUIT HIGH?

      Yes 

      • Go To  5

      No 

      • Repair the short to ground in the (R676) Active Head Restraint 1st Row Driver Signal circuit between the C313 underseat harness connector and the Driver Active Headrest harness connector in the seat back.
      • Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Refer to RESTRAINTS SYSTEM VERIFICATION TEST .
  5. CHECK THE (R676) ACTIVE HEAD RESTRAINT 1ST ROW DRIVER SIGNAL CIRCUIT HARNESS FOR SHORT TO GROUND IN THE BODY HARNESS 
    Fig 2: Checking Active Head Restraint 1st Row Driver Signal Circuit Harness For Short To Ground In Body Harness
    GC0139053Courtesy of CHRYSLER GROUP, LLC
    WARNING:

    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.

    1. Access the Occupant Restraint Controller Module in the center stack area just below the radio.
    2. Disconnect the ORC Module C2 harness connector.
    3. Connect the (special tool #8443-28, SRS Load Tool Adapter).
    4. Keep the C313 underseat jumper harness connector disconnected.
    5. Measure the resistance between ground and the (R676) Active Head Restraint 1st Row Driver Signal circuit of the appropriate terminal of the (special tool #8443-28, SRS Load Tool Adapter).

      Is the resistance below 5.0 Ohms?

      Yes 

      • Repair the short to ground in the (R676) Active Head Restraint 1st Row Driver Signal circuit located between the C313 underseat jumper harness connector and the ORC.
      • Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Refer to RESTRAINTS SYSTEM VERIFICATION TEST .

      No 

      • Go To  6
  6. CHECK OPERATION OF THE DRIVER ACTIVE HEAD REST 
    1. Reconnect any previously disconnected harness connectors.
    2. Remove any special tools or jumper wires and reconnect all previously disconnected components - except the Battery.
    3. If the vehicle is equipped with the standard key ignition, follow this ignition on warning.
      WARNING:

      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.

    4. If the vehicle is equipped with the keyless ignition, follow this ignition on warning.
      WARNING:

      Disconnect the 12-volt battery wait two minutes before proceeding, remove the ORC fuses, connect the 12-volt battery, wait two minutes before proceeding. Cycle the ignition to the On position, then reconnect the ORC fuses. Wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury.

    5. Connect the scan tool to the Data Link Connector - use the most current software available.
    6. Use the scan tool and erase the ORC stored codes.
    7. Turn the Ignition Off and wait 15 seconds before turning the Ignition On.
    8. Wait one minute and read active codes and if there are none present read the stored codes.

      Does the scan tool display active B1C12-DRIVER ACTIVE HEADREST CONTROL CIRCUIT LOW DTC?

      Yes 

      WARNING:

      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.

      WARNING:

      If the Occupant Restraint Controller (ORC) is dropped at any time, it must be replaced. Failure to follow these instructions may result in possible serious or fatal injury.

      No 

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