Air Bag Control Module: Service and Repair

CAUTION:
1. Never attempt to disassemble or repair the SRS-ECU. If faulty, replace it.
2. Do not drop or subject the SRS-ECU to impact or vibration. If dents, cracking, deformation, or rust are discovered on the SRS-ECU, replace it with a new SRS-ECU. Discard the old one.
3. After deployment of the air bags, replace the SRS-ECU with a new one.
4. Never use an ohmmeter on or near the SRS-ECU, and use only the special test equipment.




Pre-removal Operation
Turn the ignition key to the "LOCK" position.

SERVICE POINTS OF REMOVAL




NEGATIVE (-) BATTERY CABLE DISCONNECTION
Disconnect the negative battery cable from the battery and tape the terminal to prevent accidental connection and air bags deployment.

CAUTION: Wait at least 60 seconds after disconnecting the battery cable before doing any further work.

INSTALLATION SERVICE POINTS

SRS AIR BAG CONTROL UNIT (SRS-ECU) INSTALLATION

CAUTION: The SRS may not activate if SRS-ECU is not installed properly, which could result in the SRS system not operating properly in a collision.




POST INSTALLATION INSPECTION
Reconnect the negative battery terminal. Turn the ignition key to the "ON" position. Does the "SRS" warning light illuminated for about 7 seconds, turn off and then remain off for at least 45 seconds? If yes, SRS system is functioning properly. If no, refer to troubleshooting.