Diesel Data: Automotive Repair

Cruise Control System

DTC 23 VEHICLE SPEED SIGNAL ABNORMAL

CIRCUIT DESCRIPTION

DTC Detecting Condition:




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

Wiring Diagram:






Step 1 - 3:




INSPECTION PROCEDURE