Operation CHARM: Car repair manuals for everyone.

Acceleration/Deceleration Sensor: Testing and Inspection




COMBINED SENSOR INSPECTION

1. Switch the ignition to off.

2. Connect the M-MDS to the DLC-2.






3. Select the following PIDs and inspect the lateral acceleration and yaw rate. On-Board Diagnosis [Dynamic Stability Control (Dsc)]

- LAT_ACCL (lateral acceleration)
- YAW_RATE (yaw rate)

a. Lateral acceleration inspection
i. Verify the LAT_ACCL change when the combined sensor is tilted to the left and right.






- If there is any malfunction, replace the combined sensor. Service and Repair

Standard
- When the sensor is tilted to the right (A):
LAT_ACCL changes positively.
- When the sensor is tilted to the left (B):
LAT_ACCL changes negatively.

b. Yaw rate inspection
i. Verify the YAW_RATE change when the combined sensor is rotated to the left and right.






- If there is any malfunction, replace the combined sensor. Service and Repair

Standard
- When the sensor is rotated to the right (A):
YAW_RATE changes negatively.
- When the sensor is rotated to the left (B):
YAW_RATE changes positively.