ABS W/EBD System

DTC 34 Left Rear Wheel Speed Sensor Signal Malfunction

CIRCUIT DESCRIPTION

DTC Detecting Condition:

The speed sensor detects wheel speed and sends the appropriate signals to the ECU. These signals are used to control the ABS system. Each of the front and rear rotors has 48 serrations.

When the rotors rotate, a magnetic field emitted by a permanent magnet in the speed sensor generates an AC voltage. Since the frequency of this AC voltage changes in direct proportion to the speed of the rotor, the frequency is used by the ECU to detect the speed of each wheel.

HINT:
- DTC No.31 and 35 are for the right front speed sensor.
- DTC No.32 and 36 are for the left front speed sensor.
- DTC No.33 and 38 are for the right rear speed sensor.
- DTC No.34 and 39 are for the left rear speed sensor.

Wiring Diagram:

Step 1:

Step 2 - 4:

Step 5:

INSPECTION PROCEDURE