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Home >> Chrysler >> 2011 >> 300 C, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 490 (Occupant Restraint Controller (Orc) - DTCS B1B00 To B1C18) >> Diagnosis And Testing >> B1C14-Driver Active Headrest Control Circuit Open >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different car, the 2013 Dodge Avenger and 2013 Chrysler 200. 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 B1C14-DRIVER ACTIVE HEADREST CONTROL CIRCUIT OPEN DTC?

      Yes 

      • Go To  2

      No 

  2. CHECK FOR A SHORTED ACTIVE HEAD REST CIRCUIT IN DRIVER ACTIVE HEAD REST 
    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 Active Head Rest Load Tool (special tool #10253, Tester, AHR Load) in testing the present status of the AHR signal circuit.

    3. Connect the AHR Load Tool (special tool #10253, Tester, AHR Load) to the driver AHR seatback jumper harness connector going into the seatback and under the seat.
      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. With the scan tool, read the active ORC DTCs.

      Does the scan tool display: B1C14-DRIVER ACTIVE HEADREST CONTROL CIRCUIT OPEN?

      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.
  3. CHECK THE (R676) ACTIVE HEAD RESTRAINT 1ST ROW DRIVER SIGNAL CIRCUIT FOR A SHORT TO GROUND 
    Fig 2: Checking Active Head Restraint 1st Row Driver Signal Circuit For A Short To Ground
    GC0138895Courtesy 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. Measure the resistance between ground and the (R677) Active Head Restraint 1st Row Passenger Signal circuit at the appropriate terminal of the SRS Load Tool Adapter (special tool #8443-25, 56 Way ACM Adapter) connector.

      Is the resistance below 5 Ohms?

      Yes 

      • Repair the (R677) Active Head Restraint 1st Row Passenger Signal circuit for a short to ground.
      • Perform the AIRBAG SYSTEM VERIFICATION TEST. Refer to STANDARD PROCEDURE .

      No 

      • Go To  4
  4. CHECK THE (R676) DRIVER HEAD RESTRAINT SOLENOID SIGNAL CIRCUIT FOR AN OPEN OR HIGH RESISTANCE 
    1. Measure the resistance of the (R676) Driver Head Restraint Solenoid Signal circuit between the Driver Head Restraint connector cavity 2 and the appropriate terminal of the SRS Load Tool Adapter (special tool #8443-25, 56 Way ACM Adapter).

      Is the resistance below 1 Ohm?

      Yes 

      • Go To  5

      No 

      • Repair the (R676) Driver Head Restraint Solenoid Signal circuit for an open or high resistance.
      • Perform the AIRBAG SYSTEM VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  5. CHECK THE (Z913) ACTIVE HEAD RESTRAINT 1ST ROW DRIVER GROUND CIRCUIT FOR AN OPEN 
    Fig 3: Checking Active Head Restraint 1st Row Driver Ground Circuit For An Open
    GC0138896Courtesy of CHRYSLER GROUP, LLC
    1. Measure the resistance between ground and the (Z913) Active Head Restraint 1st Row Driver Ground circuit at the Active Head Restraint 1st Row Driver harness connector.

      Is the resistance below 5.0 Ohms?

      Yes 

      • Go To  6

      No 

      • Repair the Ground circuit for a open or high resistance.
      • Perform the AIRBAG SYSTEM VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  6. CHECK OPERATION OF THE DRIVER HEAD RESTRAINT 
    1. Replace the Driver Head Restraint.
    2. Reconnect the vehicle body harness to the Driver Head Restraint harness connector.
    3. Remove any special tools or jumper wires and reconnect all previously disconnected components - except the Battery.
      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. Connect the scan tool to the Data Link Connector - use the most current software available.
    5. Use the scan tool and erase the ORC stored codes.
    6. Turn the Ignition Off and wait 15 seconds before turning the Ignition On.
    7. Wait one minute and read active codes and if there are none present read the stored codes.

      Does the scan tool display active B1C14-DRIVER ACTIVE HEADREST CONTROL CIRCUIT OPEN 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.

      • Replace the ORC in accordance with Service Information.
      • Perform the AIRBAG SYSTEM VERIFICATION TEST. Refer to STANDARD PROCEDURE .

      No 

      • Repair is complete.
      • Perform the AIRBAG SYSTEM VERIFICATION TEST. Refer to STANDARD PROCEDURE .