Programming and Relearning

SUPPLEMENTAL RESTRAINT SYSTEMS: OCCUPANT CLASSIFICATION SYSTEM: INITIALIZATION

NOTICE:
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.