Operation CHARM: Car repair manuals for everyone.

Seat Occupant Sensor: Testing and Inspection

OCCUPANT CLASSIFICATION ECU (VEHICLE NOT INVOLVED IN COLLISION)
a. Perform a diagnostic system check. (Refer to Air Bag Systems; Testing and Inspection)

OCCUPANT CLASSIFICATION ECU (VEHICLE INVOLVED IN COLLISION)
a. Perform a diagnostic system check. (Refer to Air Bag Systems; Testing and Inspection)
b. Even if the airbag was not deployed, check if there is any damage to the occupant classification ECU.
If there are any defects as mentioned below, replace the occupant classification ECU with a new one:
- Cracks, dents or chips in the case.
- Cracks or other damage to the connectors.

CAUTION: For removal and installation procedures of the occupant classification ECU, see "Replacement". Be sure to follow the correct procedure.