Programming and Relearning

Calibrating the Passenger's Weight Sensor Unit ('06 Model)

When the passenger's weight sensors and/or weight sensor unit is replaced, calibrate the weight sensor unit by following the procedure.

While calibrating the passenger's weight sensor unit, observe these precautions:
- Make sure all components of the passenger's seat are correctly installed.
- Make sure nothing is on or under the passenger's seat.
- Make sure there is nothing in the passenger's seat-back pocket.
- Keep the windows closed.
- Perform all calibration procedures except, test-driving, in the service bay.
- Make sure the vehicle is on level ground.
- Keep the A/C and the heater off.
- Do not touch the passenger's seat until you drive the vehicle.
- Do not expose the passenger's seat to sudden temperature changes.

1. Position the passenger's seat to the rear most position and adjust the recliner to the most forward position. Do not move the seat from this position.




2. Connect the HDS to the data link connector (DLC) (A).
3. Drive the vehicle, and accelerate to 20 mph (36 km/h), then stop on level ground.
4. From the Main Menu, select SRS, then Weight Sensor, then Misc Test, then Adjustments. In the Adjustment Menu, select "SWS INIT," and follow the prompts until the initialization operation has been completed.
5. Prepare a 55 to 77 lbs (25 to 35 kg) weight then measure and note its actual weight (M) with a scale.

NOTE: The accuracy of the scale must be within ±2.2 lbs (1 kg).

6. Place the weight on the passenger's seat.

NOTE: Leave the HDS connected and in the Misc Menu.

7. Drive the vehicle, and accelerate to 20 mph (36 km/h), then stop on level ground.
8. From the HDS's Main Menu, select SRS, then Weight Sensor, then Misc Test, then Inspection. In the HDS Inspection Menu, select "SEAT OUTPUT CHK." The weight (T) of the passenger's seat is recorded by the HDS.
9. Calculate the variance between the weight measured on the scale (M) and the HDS (T) with the formula shown.

Variance = (T)-(M)< ±8.6 lbs (3.9 kg)

M: Weight measured on the scale
T: Weight measured by the HDS with the weight on the seat

- If the variance is ±8.6 lbs (±3.9 kg) or less, calibration is complete. Go to step 18.
- If the variance is more than ±8.6 lbs (±3.9 kg), remove the passenger's weight sensors, and reinstall them, then go to step 10.

10. Remove the weight from the passenger's seat.
11. Drive the vehicle, accelerate to 20 mph (36 km/h), then stop on level ground.
12. From the HDS inspection menu, select Weight Sensor, then "SEAT OUTPUT CHK." The weight (TO) of the passenger's seat is recorded by the HDS.
- If the reading on the HDS (TO) is ±6.6 lbs (±3.0 kg) or less, go to step 13.
- If the reading on the HDS (TO) is more than ±6.6 lbs (±3.0 kg), repeat this procedure from the beginning.

13. Measure and note the prepared weight (M1) again with a scale.
14. Place the weight on the passenger's seat.
15. Drive the vehicle, accelerate to 20 mph (36 km/h), then stop on level ground.
16. From the HDS Main Menu, select SRS, then Weight Sensor, then Misc Test, then Inspection. In the HDS Inspection Menu, select "SEAT OUTPUT CHK." The weight (T1) of the passenger's seat is recorded by the HDS.
17. Calculate the variance between the weight measured on the scale and the HDS with the formula shown.

Variance = (T1)-(M1)< ±8.6 lbs (3.9 kg)

T1: Weight measured by the HDS with the weight on the seat
M1: Weight measured on the scale

- If the variance is ±8.6 lbs (±3.9 kg) or less, calibration is complete. Go to step 18.
- If the variance is more than ±8.6 lbs (±3.9 kg), replace the passenger's weight sensors (if they were not replaced before this procedure), and repeat this procedure from the beginning.

18. Turn the ignition switch OFF, and disconnect the HDS from the DLC.