DTC 21

DTC 21 VEHICLE SPEED SENSOR "A"

CIRCUIT DESCRIPTION

DTC Detection Condition:

The speed sensor for skid control ECU detects the wheel speed and sends the appropriate signals to the skid control ECU.

The skid control ECU converts these wheel speed signals into a 4-pulse signal and outputs it to the ECM via the combination meter.

The ECM determines the vehicle speed based on the frequency of these pulse signals.

Wiring Diagram:

Step 1 - 2:

INSPECTION PROCEDURE