Lateral Accelerometer: Testing and Inspection
COMBINED SENSOR INSPECTION1. Turn the ignition switch off.
2. Remove the combined sensor installation nut.
3. Connect the M-MDS to the DLC-2 connector.
4. After the vehicle is identified, select the following items from the initialization screen of the M-MDS.
^ When using the IDS (laptop PC)
1. Select the "Toolbox" tab.
2. Select "DataLogger".
3. Select "Modules".
4. Select "ABS".
^ When using the PDS (Pocket PC)
1. Select "Module Tests".
2. Select "ABS".
3. Select "DataLogger".
5. Select the following PIDs, then inspect the lateral acceleration speed, longitudinal acceleration speed, roll rate and yaw rate.
^ LAT ACCL: (lateral acceleration speed)
^ ACCLMTR: (longitudinal acceleration speed)
^ YAW RATE: (yaw rate)
^ ROLL RATE (roll rate)
1) Lateral acceleration speed inspection
1) 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.
Standard
When the sensor is tilted to the right (A): LAT ACCL changes negatively.
When the sensor is tilted to the left (B): LAT ACCL changes positively.
2) Longitudinal acceleration speed inspection
1) Verify the ACCLMTR change when the combined sensor is moved forward and backward.
^ If there is any malfunction, replace the combined sensor.
Standard
When the sensor is tilted to forward (A): ACCLMTR changes negatively.
When the sensor is tilted to backward (B): ACCLMTR changes positively.
3) Yaw rate inspection
1) 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.
Standard
When the sensor is rotated to the right (A): YAW RATE changes positively.
When the sensor is rotated to the left (B): YAW RATE changes negatively.
4) Roll rate inspection
1) Verify the ROLL RATE change when the combined sensor is tilted to the left and right.
^ If there is any malfunction, replace the combined sensor
Standard
When the sensor is tilted to the right (A): ROLL RATE changes positively
When the sensor is tilted to the left (B): ROLL RATE changes negatively