B1C3A
B1C3A-1st ROW DRIVER RETRACTOR TENSIONER CIRCUIT OPEN
Special Tools:
For a complete wiring diagram, refer to the Wiring Information.
Theory of Operation
When powered, the Occupant Restraint Controller (ORC) sends a test current to the squibs to verify the integrity of the squib and the wiring. These circuits are maintained in a "floating" configuration at the module, (connected to neither power nor ground), as protection against inadvertent deployment. Use of the (8443A) in the tests below, substitutes a suspect squib with a known good component. The use of the SRS Load Tool jumpers and the SRS Load Tool Adapter tool provides a test point, as well as a method for opening the shorting bar connections within the harness connector. The Seat Belt Tensioners are internal to the Seat Belt Retractors. The location of the seat belt retractors are in the lower inner B-pillar trim. If the airbags have been deployed then the seat belt retractor has also and will need to be replaced.
- When Monitored:
The ORC sends out a 40 mA diagnostic current on each squib voltage supply circuit at power up and every 500 ms thereafter while the ignition is in on. The module then monitors the return wire to determine the state of the circuit.
- Set Condition:
This DTC sets when the ORC detects an open on the squib circuit for more than 2.5 seconds. This DTC transitions from active to stored when the module sees a recovery from an open condition for greater than 2.5 seconds.
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Restraints System Pre-Diagnostic Procedure.
1. DETERMINE ACTIVE OR STORED DTC
NOTE: Make sure the battery is fully charged.
1. Turn the ignition on.
2. With the scan tool, read all active ORC DTCs.
Is the DTC active or stored?
ORC - ACTIVE DTC
- Go To 2
ORC - STORED DTC
- Perform the RESTRAINTS SYSTEM INTERMITTENT TEST. Restraints System Intermittent Condition Test.
2. CHECK FOR OPEN DRIVER SEAT BELT RETRACTOR TENSIONER
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 Driver Seat Belt Retractor Tensioner harness connector.
WARNING: Do not place an intact undeployed airbag face down on a hard surface, the airbag will propel into the air if accidentally deployed. Failure to follow these instructions may result in possible serious or fatal injury.
NOTE: Check the connectors - Clean and repair as necessary.
2. Connect the (8443A) and the (8443-8) to the Driver Seat Belt Retractor Tensioner 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.
3. With the scan tool, read the active ORC DTCs.
Does the scan tool display: B1C3A-1st ROW DRIVER RETRACTOR TENSIONER 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 Seat Belt Retractor Tensioner. Seat Belt Retractor - Removal.
- Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Restraints System Verification Test.
3. CHECK (R505) DRIVER SEAT BELT RETRACTOR TENSIONER LINE 1 CIRCUIT AND (R503) DRIVER SEAT BELT RETRACTOR TENSIONER LINE 2 CIRCUIT FOR AN OPEN
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 (8443A) and (8443-8) from the Driver Seat Belt Retractor Tensioner harness connector.
2. Disconnect the ORC harness connectors.
NOTE: Check the connectors - Clean and repair as necessary.
3. Connect the (8443-24) to the ORC C1 harness connector.
4. Measure the resistance of the (R505) Driver Seat Belt Retractor Tensioner Line 1 circuit between the appropriate terminals of the Driver Seat Belt Retractor Tensioner connector and the (8443-24).
5. Measure the resistance of the (R503) Driver Seat Belt Retractor Tensioner Line 2 circuit between the appropriate terminals of the Driver Seat Belt Retractor Tensioner connector and the (8443-24).
Is the resistance below 4.4 - 5.4 Ohm for both circuits?
Yes
- WARNING: If the Occupant Restraint Controller (ORC) is dropped at any time, it must be replaced. Failure to take the proper precautions can result in accidental airbag deployment. Failure to follow these instructions may result in possible serious or fatal injury.
- Replace the Occupant Restrain Controller (ORC). Occupant Restraint Controller - Removal.
- Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Restraints System Verification Test.
No
- Repair the open (R505) or (R503) Driver Seat Belt Retractor Tensioner circuit.
- Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Restraints System Verification Test.