DTC 21

DTC 21 OPEN IN VEHICLE SPEED SENSOR CIRCUIT

CIRCUIT DESCRIPTION

Detection Item:

Wiring Diagram:

The vehicle speed sensor circuit is sent to cruise control ECU as vehicle speed signal. For each rotation of the shaft, the vehicle speed sensor sends a signal through the combination meter to the cruise control ECU (See the chart). The ECU calculates the vehicle speed from this pulse frequency.

Step 1 - 3:

Step 4:

INSPECTION PROCEDURE