Cruise Control System

DTC 23 VEHICLE SPEED SIGNAL ABNORMAL



CIRCUIT DESCRIPTION

Detection Item:

A signal from the vehicle speed sensor circuit is sent to cruise control ECU as a vehicle speed signal. The rotor shaft is driven by the gear of the transmission.

For each rotation of the shaft, the vehicle speed sensor sends a 4-pulse signal through the combination meter to the cruise control ECU (See the following).

This signal is converted inside the combination meter and sent as a 4-pulse signal to the cruise control ECU. The ECU calculates the vehicle speed from this pulse frequency.

Wiring Diagram:

Step 1:

INSPECTION PROCEDURE