DTC 21

DTC 21 Open in Vehicle Speed Sensor Circuit

CIRCUIT DESCRIPTION

Detection Item:

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 given chart). The ECU calculates the vehicle speed from this pulse frequency.

Wiring Diagram:

Step 1 - 3:

Step 4:

INSPECTION PROCEDURE