Programming and Relearning

SUPPLEMENTAL RESTRAINT SYSTEMS: OCCUPANT CLASSIFICATION SYSTEM: INITIALIZATION

INITIALIZATION
NOTE: Make sure that the front passenger seat is not occupied before performing the operation.
HINT: Perform zero point calibration if any of the following conditions is met:
- The occupant classification ECU is replaced.
- The passenger airbag ON/OFF indicator indicates OFF when the front passenger seat is not occupied.
- The vehicle is brought to the workshop for repair after an accident or a collision.

1. ZERO POINT CALIBRATION
(a) Zero point calibration procedure
(1) Check that all of the following conditions are met:

- The vehicle is parked on a flat surface.
- No objects are placed on the front passenger seat.
- The front passenger seat belt buckle switch is OFF.
(2) Adjust the seat position according to the table below:





(3) Connect the Techstream to the DLC3.
(4) Turn the ignition switch to ON.
(5) Perform zero point calibration by following the prompts on the Techstream screen.
HINT:
- Refer to the Techstream operator's manual for further details.
- If zero point calibration is performed when the calibration conditions are not satisfied, DTC B1797 is output.
- If zero point calibration has failed, DTC B1797 is output.

2. SENSITIVITY CHECK
(a) Sensitivity check procedure
(1) Turn the ignition switch off.




(2) Place a 20 kg (44.0 lb) weight on the front passenger seat.

NOTICE:
- Do not allow the weight to come into contact with the seatback when placing it on the seat cushion.
- Place the weight in the area shown in the illustration.
(3) Turn the ignition switch to ON, and wait for at least 6 seconds.
(4) Check that the passenger airbag ON/OFF indicator indicates OFF.
OK:
The passenger airbag ON/OFF indicator indicates OFF.
(5) Add a 30 kg (66.1 lb) weight to the front passenger seat (total 50 kg (110.2 lb)).
NOTICE:
- Do not allow the weight to come into contact with the seatback when placing it on the seat cushion.
- Place the weight in the area shown in the illustration.
(6) Check that the passenger airbag ON/OFF indicator indicates ON.
OK:
The passenger airbag ON/OFF indicator indicates ON.