DTC Description

The HECU monitors the wheel speed sensor circuit continuously.

A direct current is supplied in the wheel speed sensor by a power source in the input amplifier of the control unit.

If the WSS circuit is broken, in that case a fault is detected by detecting abnormal input current. HECU cuts off the voltage supply to wheel sensor channel which had a fault and prevent vehicle's damage due to super heated harness.

If one or more defects has detected, DTC code of defected wheel will be stored. Mutual short between sensors is detected by executing self diagnosis successively at corresponding wheel when ignition ON.

Warning lamp is turned OFF unless additional faults are detected when the IG KEY is turned ON again.