B1C17-11

B1C17-11-PASSENGER ACTIVE HEADREST CONTROL - CIRCUIT SHORT TO GROUND



- When Monitored:
The Occupant Restraint Controller (ORC) continuously monitors the Driver and Passenger Head Restraint Solenoid circuits for head restraint messages. The Driver and Passenger Head Restraint communication and on board diagnostics are powered by the ORC signal.

- Set Condition:
This code will set, if the ORC detects low voltage on the (R677) Passenger Head Restraint Solenoid Signal circuit.





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 B1C17-11-PASSENGER ACTIVE HEADREST CONTROL - CIRCUIT SHORT TO GROUND DTC?

Yes

- Go To 2

No

- Perform the RESTRAINTS SYSTEM INTERMITTENT TEST. Restraints System Intermittent Condition Test.

2. CHECK THE (R677) 1ST ROW RIGHT HEADREST SOLENOID SIGNAL CIRCUIT FOR A SHORT TO BATTERY

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 Passenger Head Restraint connector.
2. Disconnect the ORC connectors.
3. Connect the SRS Load Tool Adapter 8443-24 to the ORC connectors.

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 (R677) Passenger Head Restraint Solenoid Signal circuit voltage between the Passenger Head Restraint connector cavity 2 and ground.

Is there any voltage present?

Yes

- Repair the (R677) Passenger Head Restraint Solenoid Signal circuit for a short to battery.
- Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Restraints System Verification Test.

No

- Go To 3

3. CHECK THE (R677) PASSENGER HEAD RESTRAINT SOLENOID SIGNAL CIRCUIT FOR A SHORT TO GROUND

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 of the (R677) Passenger Head Restraint Solenoid Signal circuit between the Passenger Head Restraint connector cavity 2 and ground.

Is the resistance below 100K Ohms?

Yes

- Repair the (R677) Passenger Head Restraint Solenoid Signal circuit for a short to ground.
- Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Restraints System Verification Test.

No

- Go To 4

4. CHECK THE GROUND CIRCUIT FOR AN OPEN
1. Measure the resistance of the Ground circuit between the Passenger Head Restraint connector cavity 1 and ground.

Is the resistance below 5.0 Ohms?

Yes

- Go To 5

No

- Repair the Ground circuit for a open or high resistance.
- Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Restraints System Verification Test.

5. CHECK THE (R677) PASSENGER HEAD RESTRAINT SOLENOID SIGNAL CIRCUIT FOR AN OPEN OR HIGH RESISTANCE
1. Measure the resistance of the (R677) Passenger Head Restraint Solenoid Signal circuit between the Passenger Head Restraint connector cavity 2 and the SRS Load Tool Adapter 8443-24.

Is the resistance below 1 Ohm?

Yes

- Go To 6

No

- Repair the (R677) Passenger Head Restraint Solenoid Signal circuit for an open or high resistance.
- Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Restraints System Verification Test.

6. CHECK OPERATION OF THE PASSENGER HEAD RESTRAINT
1. Replace the Passenger Head Restraint.
2. Reconnect the vehicle body harness to the Passenger Head Restraint 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 B1C17-11-PASSENGER ACTIVE HEADREST CONTROL - CIRCUIT SHORT TO GROUND 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.
- Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Restraints System Verification Test.

No

- Repair is complete.
- Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Restraints System Verification Test.