Air Bag: Testing and Inspection

AIR BAG MODULES AND CLOCK SPRING INSPECTION




AIR BAG MODULE CHECK

WARNING:
- If any component damage is found during the following inspection, replace the air bag module with a new one. Dispose of the old one according to the specified procedure.
- Never attempt to measure the circuit resistance of the air bag modules (squib) even if you are using the specified tester. If the circuit resistance is measured with a tester accidental air bag deployment will result in serious personal injury.

1. Check the pad cover for dents, cracks or deformation.
2. Check the connectors for damage, the terminals for deformation, and the harness for binds.
3. Check the air bag inflator case for dents, cracks or deformation.
4. Install the air bag module (driver's side) to the steering wheel and check fit and alignment with the wheel.
5. Install the air bag module (front passenger's side) to the instrument panel and cross member and check fit and alignment.




FRONT SEATBACK ASSEMBLY WITH SIDE-AIRBAG MODULE CHECK

WARNING:
- if any improper part is found during the following inspection, replace the front seatback assembly with a new one. Dispose of the old one according to the specified procedure.
- Never attempt to measure the circuit resistance of the air bag module (squib) even if you are using the specified tester. If the circuit resistance is measured with a tester, accidental air bag deployment will result in serious personal injury.

1. Check the air bag module deployment section for dents or deformation.
2. Check connector for damage, terminals for deformation, and harness for binds.




CLOCK SPRING CHECK
If any malfunction is found in the following inspections, replace the clock spring with a new one.
1. Check the connectors and protective tube for damage, and the terminals for deformation.
2. Visually check the case for damage.
3. Refer to that the clock spring has continuity between connector number 2 and terminal number 4 of connector number 1.






CAUTION: The probe must not be inserted directly to the terminals from the front of the connector.

4. Insert special tool MB991222 from the rear of connector number 3 of the clock spring.
5. Connect a digital multi-meter to special tool MB991222, as shown, to check that conductivity is present between the terminals.