Air Bag Control Module: Service and Repair
SRS Unit ReplacementCAUTION:
- Before disconnecting any part of the SRS wire harness, disconnect the airbag connectors, seat belt tensioner connectors and side airbag connectors.
- During installation or replacement, do not bump (impact wrench, hammer etc.) the area near the SRS unit.
- Do not damage the SRS unit terminals or connectors.
- Do not disassemble the SRS unit; it has no serviceable parts.
- Store the SRS unit in a clean, dry area.
- Do not use any SRS unit which has been subjected to water damage or shows signs of being dropped or improperly handled, such as dents, cracks or deformation.
1. Make sure you have the anti-theft code for the radio, then write down the frequencies for the radio's preset buttons.
2. Disconnect the battery negative cable, then disconnect the positive cable from the battery, and wait at least 3 minutes.
3. Disconnect the airbag connectors, seat belt tensioner connectors and side airbag connectors.
Driver's Airbag:
- Remove the access panel from the steering wheel, then disconnect the 2P connector between the driver's airbag and cable reel.
NOTE: When the disconnected, the airbag connector is automatically shorted.
Front Passenger's Airbag:
- Remove the glove box.
- Disconnect the 4P connector between the front passenger's airbag and SRS main harness .
NOTE: When disconnected, the airbag connector is automatically shorted.
Side Airbag:
- Disconnect the 2P connectors between the side airbag and the SRS floor harness.
NOTE: When disconnected, the side airbag connector is automatically shorted.
Seat Belt Tensioner:
- Remove the left and right B-pillar trim panels.
- Disconnect the seat belt tensioner 2P connectors from the left side wire harness (driver's side) and the right side wire harness (front passenger's side).
NOTE: When disconnected, the tensioner connector is automatically shorted.
4. Remove the radio panel assembly then remove the bracket.
5. Disconnect the SRS main harness 18P connector and SRS floor harness 18P connector from the SRS unit.
6. Remove the three Torx bolts from the SRS unit, then pull out the SRS unit.
CAUTION:
- Be sure to install the SRS wiring so that it is not pinched or interfering with other vehicle parts.
- When tightening the Torx bolts to the specified torque after replacement, be careful to turn them in so that their heads rest squarely on the brackets.
7. Install the new SRS unit.
8. Connect the SRS main harness 18P connector and SRS floor harness 18P connector to the SRS unit, then push it into position until it clicks.
9. Reconnect the driver's airbag 2P connector to the cable reel 2P connector, and reinstall the access panel on the steering wheel.
10. Reconnect the front passenger's airbag 4P connector to the SRS main harness 4P connector, then install the glove box.
11. Reconnect the side airbag 2P connectors to the SRS floor harness 2P connectors.
12. Reconnect the left side wire harness 2P connector to the driver's seat belt tensioner and the right side wire harness 2P connector to the front passenger's seat belt tensioner. Reinstall the B-pillar trim panels.
13. Reconnect the battery positive cable, then the negative cable.
14. After installing the SRS unit, confirm proper system operation: Turn the ignition switch ON (II); the SRS indicator light should come on for about 6 seconds and then go off.
15. Enter the anti-theft code for the radio, then enter the customer's radio station presets.