1: Wheel Sensor System

Inspection 1: Wheel Sensor System

INSPECTION PROCEDURE
First use CONSULT-II self-diagnostic results to determine positions of malfunctioning wheel sensors. Then inspect parts and determine which parts to replace.

CAUTION:
^ Do not measure the resistance value and also voltage between sensor terminal with tester etc., because sensor is an active sensor.
^ Do not expand terminal of connector with a tester terminal stick, when it does the inspection with tester.

1. INSPECTION START





Perform self-diagnosis.
OK or NG
OK >> INSPECTION END
NG >> GO TO 2.

2. CHECK CONNECTOR
Turn ignition switch OFF and disconnect VDC/TCS/ABS control unit connector and connector of wheel sensor where malfunction was detected. Check terminals for deformation and connectors for poor contact. Then reconnect connectors. Also make sure interference with other parts has not cut wheel sensor cables.
Drive vehicle at 30 km/h (19 MPH) or above for at least 1.0 minute. Did ABS warning lamp turn off?
YES >> INSPECTION END
NO >> GO TO 3.

3. CHECK WHEEL SENSOR HARNESS








1. Turn ignition switch OFF and disconnect malfunctioning wheel sensor connector and VDC/TCS/ABS control unit connector.
2. Check the continuity between terminals. (Also check the continuity when steering wheel is turned right and left and when sensor harness inside wheel well is moved.) Power system Continuity should exist. Signal system Continuity should exist. Ground system Continuity should not exist.
OK or NG
OK >> GO TO 4.
NG >> Repair harness and connector between VDC/TCS/ABS control unit and wheel sensor.

4. CHECK TIRE
Check air pressure, wear and size.
Are air pressure, wear, and size within standards?
YES >> GO TO 5.
NO >> Adjust air pressure or replace tire.

5. CHECK SENSOR ROTOR
Check sensor rotor teeth and surface of rubber for damage.
OK or NG
OK >> GO TO 6.
NG >> Replace sensor rotor.

6. CHECK WHEEL SENSOR POWER SUPPLY





1. Connect VDC/TCS/ABS control unit connector.
2. Turn ignition switch ON and check voltage between malfunction wheel sensor harness connector E42 terminal 1 (G), E27 terminal 1 (B) or B113 terminal 1 (BR) or 3 (OR) and ground.
Voltage: 8V or more
OK or NG
OK >> Replace wheel sensor.
NG >> Replace VDC/TCS/ABS control unit.