Restraints and Safety Systems: Testing and Inspection
INITIALIZATION1. ZERO POINT CALIBRATION AND SENSITIVITY CHECK
NOTE: Make sure that the seat is not occupied before performing the operation.
HINT:
Perform the zero point calibration and sensitivity check if any of the following conditions occur.
- The occupant classification ECU is replaced.
- Accessories (seatback tray and seat cover, etc.) are installed.
- The passenger seat is removed from the vehicle.
- Both the SRS warning light and the passenger airbag ON/OFF indicator light ("OFF") come on.
- The vehicle is brought to the workshop for repair due to and accident or a collision.
a. Zero point calibration and sensitivity check procedures.
HINT: Make sure that zero point calibration has finished normally, and then perform the sensitivity check.
1. Adjust the seat position according to the table.
2. Connect the hand-held tester to the DLC3.
3. Turn the ignition switch to the ON position.
4. Perform the zero point calibration by following the prompts on the tester screen.
[System Selection Screen]
"1: DIAGNOSIS" - "1: OBD/MOBD" - "MODEL YEAR" - "MODEL SELECTION = HIGHLANDER" - Select the option parts - "9: OCCUPANT DETECT" - "5: ZERO CALIBRATION"
HINT: Refer to the hand-held tester operator's manual for further details.
OK: "COMPLETE" is displayed.
5. Place a 30 kg (66.14 lb) weight (eg. a 30 kg (66.14 lb) of lead mass) onto the passenger seat.
6. Perform the sensitivity check, and confirm that the sensitivity is within the standard value.
[System Selection Screen]
"1: DIAGNOSIS" - "1: OBD/MOBD" - "MODEL YEAR" - "MODEL SELECTION = HIGHLANDER" - Select the option parts - "9: OCCUPANT DETECT" - "6: SENSITIVITY CHK"
Standard value: 27 to 33 kg (59.52 to 72.75 lb)
Part 1:
Part 2:
Part 3:
HINT:
- When performing the sensitivity check, use a solid metal weight (the check result may not appear properly if the weight made from liquid is used).
- When the sensitivity deviates from the standard value, retighten the bolts of the passenger seat taking care not to deform the seat rail. After performing this procedure, if the sensitivity is not within the standard value, replace the front RH seat assy.
- When zero point calibration has not finished normally, replace the seat adjuster frame assy.