Air Bag Control Module: Service and Repair

SRS CONTROL UNIT (SRS-ECU)

REMOVAL AND INSTALLATION

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 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
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[[ 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 seven seconds, and then go out?
4. If yes, the SRS system is functioning properly. If no, refer to SRS Warning Light Check.




INSPECTION

WARNING: If a dent, crack, deformation or rust is discovered, replace the SRS-ECU with a new one.

Check the SRS-ECU and brackets for dents, cracks or deformation.

Check the SRS-ECU connector for damage, and the terminals for deformation.

NOTE: Refer to inspection of SRS-ECU for other than physical damage.