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 the zero point calibration and sensitivity check if any of the following conditions apply.

* The occupant classification ECU is replaced.
* Accessories (seatback tray and seat cover, etc.) are installed.
* The front passenger seat is removed from the vehicle.
* The passenger airbag ON/OFF indicator (OFF) comes on when the front passenger seat is not occupied.
* The vehicle is brought to the workshop for repair due to an accident or a collision.

1. ZERO POINT CALIBRATION

(a) Zero point calibration procedures:

HINT
Make sure that the zero point calibration has finished normally, and then perform the sensitivity check.

(1) Check that all of the following conditions are met:

The vehicle is parked on a level surface.

No objects are placed on the front passenger seat.

The front seat inner belt RH (passenger side buckle switch) is off.

(2) Adjust the seat position in accordance with the table below.





(3) Turn the ignition switch off.

(4) Connect the Techstream to the DLC3.

(5) Turn the ignition switch to ON and turn the Techstream on.

(6) Enter the following menus: Body Electrical / Occupant Detection / Utility / Zero Point Calibration.

(7) Perform the zero point calibration by following the prompts on the Techstream screen.

HINT
* Refer to the Techstream operator's manual for further details.
* If the zero point calibration has not finished normally, replace the front seat assembly RH.

OK:

"Zero Point calibration is complete." is displayed.

2. SENSITIVITY CHECK

(a) Sensitivity check procedures:

(1) Turn the ignition switch off.

(2) Connect the Techstream to the DLC3.

(3) Turn the ignition switch to ON and turn the Techstream on.

(4) Enter the following menus: Body Electrical / Occupant Detection / Utility / Sensitivity Check.

(5) Perform the sensitivity check by following the prompts on the Techstream screen.

HINT
Refer to the Techstream operator's manual for further details.

(6) Confirm that the beginning sensor reading is within the standard range.

Standard range:

-3.2 to 3.2 kg (-7.0 to 7.0 lb)

(7) Place a 30 kg (66.2 lb) weight (e.g. a lead mass) onto the front passenger seat.

(8) Confirm that the sensitivity is within the standard range.

Standard range:

27 to 33 kg (59.5 to 72.8 lb)

HINT
* When performing the sensitivity check, use a solid metal weight (the check result may not be accurate if a liquid weight is used).
* If the sensitivity deviates from the standard range, retighten the bolts of the front passenger seat taking care not to deform the seat rail. After performing this procedure, if the sensitivity is not within the standard range, replace the front seat assembly RH.