Air Bag(s) Arming and Disarming: Service and Repair
Supplemental Restraint System (SRS) Depowering and Repowering
1. WARNING:
- Before beginning any service procedure, Failure to follow this instruction may result in serious personal injury.
- To reduce the risk of accidental deployment, do not use any memory saver devices. Failure to follow this instruction may result in serious personal injury or death.
NOTE:
- The air bag warning indicator illuminates when the correct RCM fuse is removed and the ignition is ON.
- The SRS must be fully operational and free of faults before releasing the vehicle to the customer.
Refer to: Health and Safety Precautions (100-00 General Information, Description and Operation).
2. Turn all vehicle accessories OFF.
3. Turn the ignition OFF.
4. At the BCM, located on the bulkhead below the glove box, remove the RCM fuse 86 (10A) from the BCM. Refer to Wiring Cell 11 Fuse and Relay Information for schematic and connector information.
5. Turn the ignition ON and monitor the air bag warning indicator for at least 30 seconds. The air bag warning indicator remains lit continuously (no flashing) if the correct RCM fuse is removed. If the air bag warning indicator is not lit continuously, remove the correct RCM fuse before proceeding.
6. Turn the ignition OFF.
7. WARNING: Turn the ignition OFF and wait one minute to deplete the backup power supply. Failure to follow this instruction may result in serious personal injury or death in the event of an accidental deployment.
Disconnect the battery ground cable at the left front strut tower. Make sure that the ground cable is completely isolated from the vehicle chassis and cannot make electrical contact with any part of the vehicle chassis during service.
8. Wait at least one minute before continuing vehicle service.
1. WARNING:
- Before beginning any service procedure, Failure to follow this instruction may result in serious personal injury.
- To reduce the risk of accidental deployment, do not use any memory saver devices. Failure to follow this instruction may result in serious personal injury or death.
NOTE:
- The air bag warning indicator illuminates when the correct RCM fuse is removed and the ignition is ON.
- The SRS must be fully operational and free of faults before releasing the vehicle to the customer.
Refer to: Health and Safety Precautions (100-00 General Information, Description and Operation).
2. Install RCM fuse 86 (10A) in the BCM.
3. WARNING: Make sure no one is in the vehicle and there is nothing blocking or placed in front of any air bag module when the battery is connected. Failure to follow these instructions may result in serious personal injury in the event of an accidental deployment.
Connect the battery ground cable to the LF strut tower and install the battery cable body ground terminal stud.
Torque: 22 Nm
4. Remove to BJB cover.
5. NOTICE:
- This step directs accessing circuits using a backprobe method. Use the special backprobe tool specified in the tool list. Do not force test leads or other probes into connectors. Adequate care must be exercised to avoid connector terminal damage while ensuring that good electrical contact is made with the circuit terminal. Failure to follow these instructions may cause damage to wiring, terminals, or connectors and subsequent electrical faults.
- Take extra care to make sure that the correct connector terminal is back-probed. Failure to probe the correct terminal may result in Diagnostic Trouble Codes (DTCs) set in multiple modules or damage to the vehicle.
Install a backprobe pin and 5-amp fused jumper wire at connector C1035C, pin 2, circuit CDC12 (BU/YE). Refer to Wiring Diagrams Cell 11 Fuse and Relay Information for schematic and connector information. Refer to Wiring Diagrams Cell 13 Power Distribution for schematic and connector information. Special Tool(s): NUD105-R025D (Flex Probe Kit), POMA6411 (Backprobe Pins)
6. NOTICE: Follow the directions in the following step carefully. Failure to follow the directions as detailed below may result in DTCs set in multiple modules or damage to the vehicle.
NOTE: This step simulates pressing the start/stop switch by providing momentary voltage to the start/stop switch circuit.
Using the other end of the fused jumper wire, momentarily touch the fused jumper wire to the positive battery terminal.
7. Remove the fused jumper wire and backprobe pin from connector C1035C, pin 2, circuit CDC12 (BU/YE). Install the BJB cover.
8. Prove out the SRS: Turn the ignition from ON to OFF. Wait 10 seconds, then turn the ignition back to ON and monitor the air bag warning indicator with the air bag modules installed. The air bag warning indicator illuminates continuously for approximately 6 seconds and then turns off. If a SRS fault is present, the air bag warning indicator: the air bag warning indicator either fails to light, remains lit continuously or flashes.
9. The flashing may not occur until approximately 30 seconds after the ignition has been turned from OFF to ON. This is the time required for the RCM to complete the testing of the SRS. If the air bag warning indicator is inoperative and a SRS fault exists, a message will display in the IPC indicating that a SRS fault is present. If this occurs, diagnose and repair the air bag warning indicator and any SRS faults.
10. Using a scan tool, clear all CMDTCs from all modules.