Diesel Data: Automotive Repair

Cruise Control System








CRUISE CONTROL: CRUISE CONTROL SYSTEM: P0500: Vehicle Speed Sensor Malfunction

DTC P0500 - Vehicle Speed Sensor Malfunction

DESCRIPTION

The vehicle speed sensors detect the wheel speed and send 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 assembly. The ECM determines the vehicle speed based on the frequency of these pulse signals.





WIRING DIAGRAM





INSPECTION PROCEDURE

This DTC may be output by the SFI system at the same time. In that case, perform troubleshooting for the SFI system first.

PROCEDURE

1. READ OUTPUT DTC (DTC P0500)
(a) Clear the DTCs Reading and Clearing Diagnostic Trouble Codes.
(b) Perform the following to make sure that the DTC detection conditions are met.
HINT: If the detection conditions are not met, the malfunction cannot be detected.

(1) With the shift lever in D, drive the vehicle for more than 10 seconds when the engine coolant temperature is more than 20°C (68°F).
(c) Check for DTCs Reading and Clearing Diagnostic Trouble Codes.
Result:





C -- GO TO SFI SYSTEM (P0500)
B -- GO TO SFI SYSTEM (P0500)
A -- USE SIMULATION METHOD TO CHECK