Diagnostic Test
- VERIFY ACTIVE DTC NOTE:
Make sure the battery is fully charged.
- Turn the ignition on.
- With the scan tool, read the ORC DTCs.
Does the scan tool display active B1C11-11-DRIVER ACTIVE HEADREST CONTROL - CIRCUIT SHORT TO GROUND?
Yes
- Go To 2
No
- Perform the RESTRAINTS SYSTEM INTERMITTENT TEST. Refer to RESTRAINTS SYSTEM INTERMITTENT TEST .
- CHECK FOR A SHORTED ACTIVE HEAD REST CIRCUIT IN DRIVER ACTIVE HEAD REST
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.
- Access the Driver Active Head Rest harness connector located in the driver seatback jumper harness.
- 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.
- Connect the (special tool #10253, Tester, AHR Load) to the driver AHR seatback jumper harness connector going into the seatback and under the seat.
- If equipped with the standard key ignition, use 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 equipped with the keyless ignition, use 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.
- With the scan tool, read the active ORC DTCs.
Does the scan tool display: B1C11-11-DRIVER ACTIVE HEADREST CONTROL - CIRCUIT SHORT TO GROUND?
Yes
- Go To 3
No
- If equipped with the standard key ignition, use 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 equipped with the keyless ignition, use 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.
Replace the Driver Active Head Rest in accordance with the Service Information. Refer to HEADREST, FRONT, REMOVAL .
- 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.
- Access the Driver Active Headrest connector located in the passenger seat back.
- Disconnect the Driver Active Headrest harness connector.
- If equipped with the standard key ignition, use 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 equipped with the keyless ignition, use 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 B1C11-13-DRIVER ACTIVE HEADREST CONTROL CIRCUIT OPEN?
Yes
- Turn the Ignition off.
- Connect the Driver Active Headrest harness connector.
- If equipped with the standard key ignition, use 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 equipped with the keyless ignition, use 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.
- Turn the ignition Off. Wait 15 seconds before turning the ignition On.
- Wait one minute and read active codes.
- If the B1C11-11-DRIVER ACTIVE HEADREST CONTROL CIRCUIT- SHORT TO GROUND DTC becomes active, replace the Driver Active Headrest in accordance with the Service Information. Refer to HEADREST, FRONT, REMOVAL .
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:This forces the ORC module into a reset diagnostic mode to check for Active ORC DTCs.
No
- Go To 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 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 passenger inline underseat jumper harness connector located under the driver seat closest to the driver active head rest. Disconnect the inline jumper harness connector.
- Disconnect the ORC harness connector.
- Connect the 8443-55 tool onto the ORC Module.
- Measure the resistance between ground and the (R676) Active Head Restraint 1st Row Driver Signal circuit at the appropriate terminal of the 8443-55 tool.
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 Driver Active Head Rest harness connector and the inline harness connector.
- Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Refer to RESTRAINTS SYSTEM VERIFICATION TEST .
No
- Go To 5
- CHECK THE (R676) ACTIVE HEAD RESTRAINT 1ST ROW DRIVER SIGNAL CIRCUIT HARNESS FOR SHORT TO GROUND IN THE BODY HARNESS BETWEEN THE INLINE UNDERSEAT HARNESS CONNECTOR AND THE ORC 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.
- Disconnect the ORC Module harness connector.
- Connect the.
- Keep the in-line underseat jumper harness connector disconnected.
- Measure the resistance between ground and the (R676) Active Head Restraint 1st Row Driver Signal circuit at the appropriate terminal of the.
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 in-line underseat jumper harness connector (body side) and the ORC Module.
- Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Refer to RESTRAINTS SYSTEM VERIFICATION TEST .
No
- Go To 6
- CHECK OPERATION OF THE DRIVER ACTIVE HEAD REST
- Reconnect any previously disconnected harness connectors.
- Remove any special tools or jumper wires and reconnect all previously disconnected components - except the Battery.
- If equipped with the standard key ignition, use 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 equipped with the keyless ignition, use 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.
- Connect the scan tool to the Data Link Connector - use the most current software available.
- Use the scan tool and erase the ORC stored codes.
- Turn the Ignition Off and wait 15 seconds before turning the Ignition On.
- Wait one minute and read active codes and if there are none present read the stored codes.
Does the scan tool display active B1C11-11-DRIVER ACTIVE HEADREST CONTROL - CIRCUIT SHORT TO GROUND?
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 the Service Information. Refer to MODULE, OCCUPANT RESTRAINT CONTROLLER, REMOVAL .
- Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Refer to RESTRAINTS SYSTEM VERIFICATION TEST .
No
- Repair complete. Verify reconnecting of all components and in-lines.
- Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Refer to RESTRAINTS SYSTEM VERIFICATION TEST .