Cruise Control System

DTC P0503 VEHICLE SPEED SENSOR "A" INTERMITTENT/ERRATIC/HIGH

CIRCUIT DESCRIPTION

DTC Detecting Condition:

The speed sensor for skid control computer assembly detects the wheel speed and sends the appropriate signals to the Skid control computer assembly.

The ECM converts these signals into a 4-pulse signal and outputs it to the combination meter.

After this signal is converted into a more precise rectangular waveform by the waveform shaping circuit inside the combination meter, it is then transmitted to the ECM. The ECM determines the vehicle speed based on the frequency of these pulse signals.

Wiring Diagram:

Step 1 - 2:

Step 3:

INSPECTION PROCEDURE