Dynamic Radar Cruise Control System

CRUISE CONTROL: DYNAMIC RADAR CRUISE CONTROL SYSTEM: P0500,P0503: Vehicle Speed Sensor Malfunction
P0503 - Vehicle Speed Sensor Circuit Malfunction

DESCRIPTION

The dynamic radar cruise control system uses the same vehicle speed signal that is sent to the ECM for the SFI system. If DTC P0500 and P0503 is detected, perform the diagnosis using the inspection procedure for DTC P0500 and P0503 in the SFI system P0500. The speed signal is converted for use by the cruise control inside the ECM. Both the SFI system and the dynamic radar cruise control system can set DTC P0500 and P0503, however, the detection conditions of the two systems are different.





WIRING DIAGRAM





INSPECTION PROCEDURE

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

PROCEDURE

1. CHECK DTC (VEHICLE STABILITY CONTROL SYSTEM)

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(c) Turn the Techstream on.

(d) Enter the following menus: Chassis / ABS/VSC/TRAC / Trouble Codes.

(e) Check for DTCs.

Result





B -- GO TO VEHICLE STABILITY CONTROL SYSTEM (DTC CHART) Vehicle Stability Control System
A -- Continue to next step.

2. REPLACE COMBINATION METER ASSEMBLY

(a) Replace the combination meter assembly Removal.

NEXT -- Continue to next step.

3. CHECK DTC (CRUISE CONTROL SYSTEM)

(a) Clear the DTCs Dynamic Radar Cruise Control System.

(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) Drive the vehicle at a speed of 50 km/h (30 mph) or more.

(2) Turn the cruise control main switch on.

(3) Push the -SET switch to activate the cruise control.

(c) Check for DTCs Dynamic Radar Cruise Control System.

Result





B -- REPLACE ECM Removal

A -- END