DTC 21

DTC 21 VEHICLE SPEED SENSOR "A"

CIRCUIT DESCRIPTION

DTC Detection Condition:

The speed sensor 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