Antilock Brake System
FRONT ABS WHEEL-SPEED SENSOR INSPECTIONInstallation Visual Inspection
1. Inspect for the following:
^ If there is any malfunction, replace the part.
1) Excessive play of the ABS wheel-speed sensor
2) Deformation of the ABS wheel-speed sensor
3) Deformation or damage of the ABS sensor rotor
Clearance Inspection
1. Inspect the clearance between the front ABS wheel-speed sensor and the ABS sensor rotor. If there is any malfunction, verify improper installation and replace if necessary.
Clearance 2.1 mm (0.082 in) or less
Sensor Output Value Inspection
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.