C1101, C1102, C1103, C1104 WHEEL SENSOR-1

Description
When the sensor rotor rotates, the magnetic field changes. It converts the magnetic field changes to current signals (rectangular wave) and transmits them to the ABS actuator and electric unit (control unit).

DTC Logic

DTC DETECTION LOGIC

1. Disconnect connectors from wheel sensor of malfunction code No.
2. Connect ABS active wheel sensor tester (J-45741) to wheel sensor using appropriate adapter.
3. Turn on the ABS active wheel sensor tester power switch.

NOTE:
The green POWER indicator should illuminate. If the POWER indicator does not illuminate, replace the battery in the ABS active wheel sensor tester before proceeding.

4. Spin the wheel of the vehicle by hand and observe the red SENSOR indicator on the ABS active wheel sensor tester. The red SENSOR indicator should flash on and off to indicate an output signal.

NOTE:
If the red SENSOR indicator illuminates but does not flash, reverse the polarity of the tester leads and retest.
Does the ABS active wheel sensor tester detect a signal?
YES >> GO TO 3
NO >> Replace wheel sensor. Refer to See: Brakes and Traction Control\Antilock Brakes / Traction Control Systems\Wheel Speed Sensor\Service and Repair\TCS/ABS.
3.CHECK TIRE
Check air pressure, wear and size.
Are air pressure, wear and size within standard?
YES >> GO TO 4
NO >>

• Adjust air pressure, or replace tire.
• Perform the self-diagnosis, and make sure that the result shows "NO DTC IS DETECTED". 4.CHECK WHEEL BEARINGS

Check wheel bearing axial end play. Refer to See: Maintenance\Wheels and Tires\Wheel Hub\Testing and Inspection\Front Wheel Hub (front) or See: Maintenance\Wheels and Tires\Wheel Hub\Testing and Inspection\Wheel Hub (rear).
Is the Inspection result normal?
YES >> GO TO 5
NO >> Repair or replace as necessary. Refer to See: Maintenance\Wheels and Tires\Wheel Hub\Service and Repair\Front Wheel Hub and Knuckle (front) or See: Maintenance\Wheels and Tires\Wheel Hub\Service and Repair\Rear Wheel Hub (rear).
5.CHECK WHEEL SENSOR HARNESS

1. Turn ignition switch OFF and disconnect malfunctioning wheel sensor connector E41 (FR-RH), E19 (FR-LH), B43 (RR-RH and RR-LH) and ABS actuator and electric unit (control unit) connector E26.
2. Check continuity between terminals. (Also check continuity when steering wheel is turned right and left and when sensor harness inside the wheel house is moved.)

• Repair or replace malfunctioning components.
• Perform the self-diagnosis, and make sure that the result shows "NO DTC IS DETECTED". 6.CHECK WHEEL SENSOR POWER SUPPLY CIRCUIT

1. Reconnect ABS actuator and electric unit (control unit) connector.
2. Turn ignition switch ON and check between wheel sensor harness connector power supply terminal and ground.