1. Inspect the following items:
If there is any malfunction, replace the applicable part.
a. Excessive play of the ABS wheel-speed sensorb. Deformation of the ABS wheel-speed sensor
1. Remove the front ABS wheel-speed sensor.
2. Measure the distance between the front ABS wheel-speed sensor installation surface and the ABS sensor rotor. This is dimension A.
3. Measure the distance between the front ABS wheel-speed sensor installation surface and the tip of ABS wheel-speed sensor. This is dimension B.
4. Calculate the clearance between the front ABS wheel-speed sensor and the ABS sensor rotor using the following formula:
Clearance (mm {in}) = A – B
5. Verify that the clearance between the ABS sensor rotor and the front ABS wheel-speed sensor is as indicated below.
If there is any malfunction, replace it.
Clearance
0.3—1.0 mm {0.012—0.057 in}
CAUTION:
Resistance inspection using other testers may cause damage to the ABS wheel-speed sensor internal circuit. Be sure to use the M-MDS to inspect the ABS wheel-speed sensor.
1. Turn the ignition switch off.
2. Connect the M-MDS to the DLC-2.
3. Select the following PIDs using the M-MDS:
LF_WSPD
(LF wheel-speed sensor)
RF_WSPD
(RF wheel-speed sensor)
4. Start the engine and drive the vehicle.
5. Verify that the display of the M-MDS shows the same value as the speedometer.
If there is any malfunction, replace the front ABS wheel-speed sensor.