Handling Precautions on Related Components
HANDLING PRECAUTIONS ON RELATED COMPONENTS1. SUPPLEMENTAL RESTRAINT SYSTEM (SRS) (Electrical)
Servicing vehicle with a Supplemental Restraint System (referred to as the SRS in the remainder of this manual) installed. When handling SRS components (removal, installation or inspection, etc.), always follow the directions given in the applicable service procedures for the relevant model year to prevent the occurrence of accidents and airbag malfunction. Also take the following precautions when repairing the body:
- Work must be started after 90 seconds or longer from the time the ignition switch is set to the LOCK position and the negative (-) terminal cable is disconnected from the battery. (The airbag system is equipped with a back-up power source so that if work is started within 90 seconds of disconnecting the negative (-) terminal cable of the battery, the airbag may be deployed.) When the negative (-) terminal cable is disconnected from the battery, memory of the clock and audio systems will be cancelled. So before starting work, make a record of the contents memorized by each memory system. Then when work is finished, reset the clock and audio systems as before. When the vehicle has tilt and telescopic steering, power seat, outside rear view mirror and power shoulder belt anchorage, which are all equipped with memory function, it is not possible to make a record of the memory contents. So when the operation is finished, it will be necessary to explain this fact to the customer, and request the customer to adjust the features and reset the memory.
- When using electric welding, first disconnect the SRS connector (yellow color and 2 pins) under the steering column near the combination switch connector on the glove compartment finish plate and lower the front scuff plate before starting work.
- Before repairing the body, remove the SRS parts if, during repair, shocks are likely to be applied to the sensors due to vibrations of the body or direct tapping with tools or other parts.
- Do not expose the SRS parts directly to hot air or flames.
NOTE:
1. The maximum ambient temperature tolerance is 120 degrees C (248 degrees F) for the front airbag sensor, 105 degrees C (221 degrees F) for the center airbag sensor assembly and 93 degrees C (2 degrees F) for the steering wheel pad, and front passenger airbag assembly. If it is possible that the ambient temperature may reach or exceed the temperature limit, remove the sensors and the steering wheel pad from the vehicle or protect them with a hot insulation material before staring work.
2. Prior to welding, remove adjacent SRS parts form the vehicle or protect them with fire-proof covers.
- If the vehicle is damaged, visually inspect for damage to the steering wheel pad using the inspection procedures described in the applicable service procedures for the relevant model year.
- When removing or handling the steering wheel pad, and front passenger airbag assembly keep the pad upper surface facing upward. Also, lock the lock lever of the twin lock type connector at the rear of the pad and take care not to damage the connector. (Storing the pad or front passenger airbag assembly with its metallic surface up may lead to a serious accident if the airbag inflates for some reason.)
- Store the steering wheel pad and the front passenger airbag assembly where the ambient temperature remains below 93 degrees (200 degrees F), without high humidity and away from electrical noise.
- Be careful not to let painting materials contact the SRS parts.
- Information labels are attached to the periphery of the SRS components. Follow the NOTES.
- Store the airbag assembly where the ambient temperature remains below 93 degrees C (200 degrees F), without high humidity and away from electrical noise.
2. SRS AIRBAG (Mechanical)
The TOYOTA COROLLA is equipped with an SRS (Supplemental Restraint System)) airbag as an option. Failure to carry out service operations in the correct sequence could cause the airbag system to unexpectedly deploy during servicing, possibly leading to a serious accident. Further, if a mistake is made in servicing the airbag system, it is possible the airbag may fail to operate when required. Before performing servicing (including removal or installation of parts, inspection or replacement), be sure to read the following items carefully, then follow the correct procedure described in the applicable service procedures for relevant model.
1. Never disassemble the steering wheel pad assembly.
2. Do not subject the steering wheel pad to shocks or bring magnets close to it.
3. Do not expose the steering wheel pad to high temperatures or fire.
4. If grease, cleaner, oil or water gets on the steering wheel pad, promptly wipe it off with a dry cloth.
5. Do not drop the steering wheel pad. Never use a steering wheel pad which has been dropped.
6. Never install the steering wheel and pad in another vehicle.
7. When the steering wheel pad is removed, store it on a stable, flat place with the pad surface facing upwards. Never place anything on top of the pad.
8. When work on the vehicle will produce too strong a shock, first loosen the sensor lock release bolt until it turns freely and perform the work after sensor lock occurs.
9. Even in cases where the vehicle is in a low-impact accident where the airbag is not activated, always check the pad surface and airbag sensor part. If dents, cracks or deformation is visible, replace the airbag with a new assembly.
10. When disposing of the vehicle or steering wheel, always deploy the airbag first.
11. The deployed inflator inside the steering wheel pad is hot, so dispose of it after it has been cooled by atmospheric air. Never apply water to cool it down.
3. BRAKE SYSTEM
The brake system is one of the most important safety components. Always follow the directions and notes given in the applicable service procedures for the relevant model year when handling brake system parts.
4. DRIVE TRAIN AND CHASSIS
The drive train and chassis are components that can have great effects on the running performance and vibration resistance of the vehicle. After installing components in the sections listed in the table, perform alignments to ensure correct mounting angles and dimensions. Particularly accurate repair of the body must also be done to ensure correct alignment.
HINT: Correct procedures and special tools are required for alignment. Always follow the directions given in the applicable service procedures for the relevant model during alignment.
5. COMPONENTS ADJACENT TO THE BODY PANELS
Various types of component parts are mounted directly on or adjacently to the body panels. Strictly observe the following precautions to prevent damaging these components and the body panels during handling.
- Before repairing the body panels, remove their components or apply protective covers over the components.
- Before prying components off using a screwdriver or a scraper, etc., attach protective tape to the tool tip or blade to prevent damaging the components and the body paint.
- Before removing components from the outer surface of the body, attach protective tape to the body to ensure no damage to painted areas.
HINT: Apply touch-up paint to any damaged paint surfaces.
- Before drilling or cutting sections, make sure that there are no wires, etc. on the reverse side.