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Home >> Chrysler >> 2011 >> 300 C, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 490 (Occupant Restraint Controller (Orc) - DTCS B1B00 To B1C18) >> Diagnosis And Testing >> B1C13-Driver Active Headrest Control Circuit High >> 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 B1C13-DRIVER ACTIVE HEADREST CONTROL CIRCUIT HIGH DTC?

      Yes 

      • Go To  3

      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 Passenger 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 VOLTAGE 
    Fig 2: Checking Active Head Restraint 1st Row Driver Signal Circuit For Short To Voltage
    GC0138892Courtesy 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. Disconnect the ORC harness connectors.
    2. Connect the SRS Load Tool Adaptor (special tool #8443-25, 56 Way ACM Adapter) to the ORC harness connectors.
    3. Keep the in-line underseat connector and the Driver Active Headrest connector in the driver seat back connected.
      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. Measure the voltage of the (R676) Active Head Restraint 1st Row Driver Signal circuit at the appropriate terminal of the SRS Load Tool Adapter (special tool #8443-25, 56 Way ACM Adapter) and ground.

      Is there any voltage present?

      Yes 

      • Go To  4

      No 

      • Go To  6
  4. CHECK THE (R676) ACTIVE HEAD RESTRAINT 1ST ROW DRIVER SIGNAL CIRCUIT FOR A SHORT TO VOLTAGE BETWEEN THE ORC AND THE IN-LINE UNDERSEAT CONNECTOR (BODY HARNESS) 
    Fig 3: Checking Active Head Restraint 1st Row Driver Signal Circuit For Short To Voltage
    GC0138892Courtesy 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.

    NOTE:

    Inspect for damaged terminals at the in-line underseat jumper harness connector.

    1. Disconnect the in-line underseat harness connector.
      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.

    2. Measure for voltage between ground and the in-line underseat connector of the (R676) Active Head Restraint 1st Row Driver Signal circuit at the appropriate terminal of the SRS Load Tool Adapter (special tool #8443-25, 56 Way ACM Adapter).

      Is there voltage present?

      Yes 

      • Repair the short to voltage in the (R676) Active Head Restraint 1st Row Driver Signal circuit located between the body side of in-line underseat jumper connector and the ORC.
      • Perform the AIRBAG SYSTEM VERIFICATION TEST. Refer to STANDARD PROCEDURE .

      No 

      • Go To  5
  5. CHECK THE (R676) ACTIVE HEAD RESTRAINT 1ST ROW DRIVER SIGNAL CIRCUIT FOR SHORT TO VOLTAGE IN THE SEATBACK HARNESS 
    Fig 4: Checking Active Head Restraint 1st Row Driver Signal Circuit For Short To Voltage
    GC0138892Courtesy 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.

    NOTE:

    Inspect for damaged terminals at the in-line underseat jumper harness connector. Reconnect the in-line harness connector.

    1. Connect the in-line under seat connector.
    2. Access the Driver Active Headrest connector located in the driver seat back jumper harness.
    3. Disconnect the Driver Active Headrest harness connector.
      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. Measure the voltage between ground and the (R676) Active Head Restraint 1st Row Driver Signal circuit at the appropriate terminal of the SRS Load Tool Adapter (special tool #8443-25, 56 Way ACM Adapter).

      Is there voltage present?

      Yes 

      • Repair the short to voltage in the (R676) Active Head Restraint 1st Row Driver Signal circuit located between the in-line underseat jumper harness connector and the Driver Active Headrest connector.
      • Perform the AIRBAG SYSTEM VERIFICATION TEST. Refer to STANDARD PROCEDURE .

      No 

      • Go To  10
  6. CHECK THE (R676) ACTIVE HEAD RESTRAINT 1ST ROW DRIVER SIGNAL CIRCUIT AN OPEN OR HIGH RESISTANCE BETWEEN THE ORC AND THE IN-LINE BODY SIDE HARNESS UNDERSEAT HARNESS CONNECTOR 
    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. Disconnect the in-line underseat harness connector.
    2. Measure the resistance of the (R676) Active Head Restraint 1st Row Driver Signal circuit from the inline underseat connector (body harness) to 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  7

      No 

      • Repair the (R676) Active Head Restraint 1st Row Driver Signal circuit between the ORC and the inline body harness connector for an open or high resistance.
      • Perform the AIRBAG SYSTEM VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  7. CHECK THE (R676) ACTIVE HEAD RESTRAINT 1ST ROW DRIVER SIGNAL CIRCUIT FOR AN OPEN OR HIGH RESISTANCE TO THE DRIVER ACTIVE HEADREST CONNECTOR (SEAT BACK JUMPER HARNESS) 
    Fig 5: Checking Active Head Restraint 1st Row Driver Signal Circuit For Open Or High Resistance
    GC0138893Courtesy 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 Headrest connector located in the driver seat back.
    2. Disconnect the Driver Active Headrest harness connector.
    3. Measure the resistance of the (R676) Active Head Restraint 1st Row Driver Signal circuit from the appropriate terminal of the Driver Active Headrest connector to 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  8

      No 

      • Repair the (R676) Active Head Restraint 1st Row Driver Signal circuit for an open or high resistance.
      • Perform the AIRBAG SYSTEM VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  8. CHECK THE DRIVER ACTIVE HEAD REST (Z913) GROUND CIRCUIT OF THE SEATBACK JUMPER HARNESS FOR AN OPEN 
    Fig 6: Checking Driver Active Head Rest Ground Circuit Of The Seatback Jumper Harness For An Open
    GC0138894Courtesy of CHRYSLER GROUP, LLC
    1. Measure the resistance between ground and the (Z913) Ground circuit at the Driver Active Headrest harness connector (seatback jumper harness side).

      Is the resistance below 5.0 Ohms?

      Yes 

      • Go To  9

      No 

      • Repair the Ground circuit for a open or high resistance.
      • Perform the AIRBAG SYSTEM VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  9. CHECK THE DRIVER ACTIVE HEAD REST (Z913) GROUND CIRCUIT TO GROUND FOR AN OPEN OR HIGH RESISTANCE 
    Fig 7: Checking Driver Active Head Rest Ground Circuit Of The Seatback Jumper Harness For An Open
    GC0138894Courtesy of CHRYSLER GROUP, LLC
    1. Measure the resistance between ground and the (Z913) Ground circuit at the Driver Active Headrest harness connector (component side).

      Is the resistance below 5.0 Ohms?

      Yes 

      • Reconnect all previously disconnected components.
        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.

      • Turn the Ignition Off and wait 15 seconds before turning the Ignition On.
      • Wait one minute and read active codes.
      • If the B1C13-Driver Active Headrest Control Circuit High DTC becomes active, replace the ORC in accordance with the Service Information. Refer to MODULE, OCCUPANT RESTRAINT CONTROLLER, REMOVAL .

      No 

      • Go To 10
  10. CHECK OPERATION OF THE DRIVER ACTIVE HEAD REST 
    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 B1C13-DRIVER ACTIVE HEADREST CONTROL CIRCUIT HIGH 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 .
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