INITIALIZATION DESCRIPTION (a)
Zero point of the occupant classification sensors may deviate in the
following situations. To ensure sensor accuracy, be sure to perform Zero
Point Calibration.
- The occupant detection ECU is replaced.
HINT:
As
the zero point is not automatically stored in a new occupant detection
ECU, it is necessary to perform zero point calibration after replacing
the occupant detection ECU.
- Accessories (seatback tray, seat cover, etc.) are installed.
HINT:
As
the weight of accessories will be added to the weight of the occupant,
the system will not be able to perform classification accurately.
- The front passenger seat is removed from the vehicle.
HINT:
As
the seat frame will warp slightly when the bolts that are used to
install the front passenger seat are tightened, the load applied to the
occupant classification sensors will change and the system will not be
able to perform classification accurately.
- Any of the bolts that are used to install the front passenger seat are removed and reinstalled.
HINT:
As
the seat frame will warp slightly when the bolts that are used to
install the front passenger seat are tightened, the load applied to the
occupant classification sensors will change and the system will not be
able to perform classification accurately.
- The passenger airbag ON/OFF indicator ("ON") illuminates when the front passenger seat is not occupied.
HINT:
If
any load or pressure is applied to the occupant classification sensors,
the system will not be able to perform classification accurately.
- An occupant classification sensor collision detection DTC is output due to an accident or a collision.
NOTICE: Make sure that the front passenger seat is not occupied before performing the operation.
ZERO POINT CALIBRATION (a) Zero point calibration procedure (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.
- No objects are touching the front passenger seat.
(2) Adjust the seat position according to the table below. |
Adjustment Item | Position | |
Slide Direction | 50 mm (1.97 in.) from rearmost position | |
Headrest Height | Lowest position | |
Recline Angle | Upright position | |
Front Tilt Height | Lowest position | |
Seat Lifter Height | Lowest position |
(3) Turn the power switch off. (4) Connect the Techstream to the DLC3.
(5) Turn the power switch on (IG). (6) Turn the Techstream on. (7) Enter the following menus: Body Electrical / Occupant Detection / Utility / Zero Point Calibration. Body Electrical > Occupant Detection > Utility
|
Tester Display | | Zero Point Calibration |
(8) Perform zero point calibration by following the prompts on the Techstream screen.
OK: "Zero Point Calibration is complete." is displayed.
HINT:
- Refer to the Techstream operator's manual for further details.
- If zero point calibration does not complete normally, perform this
procedure again. If zero point calibration cannot be completed normally,
replace the separate type front seat cushion spring assembly RH.
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