SUPPLEMENTARY RESTRAINT SYSTEM (SRS) 14 ON VEHICLE REPAIR ECU REMOVAL 1. Disconnect the battery connections. 2. Remove the floor console assembly. (For procedure refer floor console removal procedure in body section). 3. Disconnect the electrical connection from the air bag ECU. 4. Loosen and remove the mounting screws (Two from front and one from the rear end) and remove the ECU from the vehicle. FITMENT For fitment follow reverse procedure of removal. NOTE While assembly of ECU reconnect the earthing cable with the mounting screw. PRECAUTIONS If the ECU is accidentally dropped on the concrete floor from the height of more than 1m then that ECU should not be used on a vehicle. ECU should be transported with proper packing material. Always store the ECU in dry place. A person handling any restraints module assembly shall have to wear ESD (electro-static discharge) straps to reduce any risk of inadvertent deployment. 11.1.6.2.2 SENSORS ! CAUTION Do not attempt to check or replace any impact sensor unless the vehicle battery is disconnected. This renders the sensing system "powered OFF". Wait for at least 10 minutes after the battery is disconnected and then start the relevant work/repair. A. FRONT IMPACT SENSOR (FIS) These sensors are positioned well forward in the crush zone that will react almost instantly to the sudden deceleration that results from the front impact. They send signal to the SRS ECU and help in firing the restraints in the minimum possible time. These sensors are equipped with “Safe Mode” function to ensure that the SRS fires only when there is a physical crash event of significant severity.
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