Air Bag Control Module: Service and Repair

SRS CONTROL UNIT (SRS-ECU)

WARNING:
- Never attempt to disassemble or repair the SRS-ECU. If faulty, replace it.
- Do not drop or subject the SRS-ECU to impact or vibration. If denting, cracking, deformation, or rust are discovered in the SRS-ECU, replace it with a new SRS-ECU. Discard the old one.
- After deployment of an air bag, replace the SRS-ECU with a new one.
- Never use an Ohmmeter on or near the SRS-ECU, and use only the special test equipment described on.

SRS Control Unit (SRS-ECU):

REMOVAL AND INSTALLATION

REMOVAL SERVICE POINT




[[A]] NEGATIVE (-) BATTERY CABLE DISCONNECTION

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

WARNING: Battery posts, terminals and related accessories contain lead and lead compounds. WASH HANDS AFTER HANDLING.

Disconnect the negative battery cable from the battery and tape the terminal to prevent accidental connection and deployment.

INSTALLATION SERVICE POINTS

]]A[[ SRS-ECU INSTALLATION

WARNING: The SRS may not activate if the SRS-ECU is not installed properly, which could result in serious injury or death to the vehicle's driver or front passenger.




]]B[[ BRACKET MOUNTING BOLT (GROUNDING BOLT) INSTALLATION
Check the head mark "E" on the bolt and attach the grounding bolt.




]]C[[ POST-INSTALLATION INSPECTION

1. Reconnect the negative (-) battery cable.
2. Turn the ignition switch to the "ON" position.
3. Does the "SRS" warning light illuminate for approximately 7 seconds, and then remain off for at least 5 seconds after turning "OFF"?
4. If yes, the SRS system is functioning properly.