Toyota Venza: Vehicle Speed Sensor "A" Intermittent / Erratic / High (P0503)

DESCRIPTION

If a malfunction (a rapid change in vehicle speed) in the vehicle speed signal being output from the skid control ECU is detected while the cruise control is in operation, the ECM determines that there is a momentary interruption or noise, and outputs a DTC.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

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

(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/TRC / DTC.

(e) Check for DTCs.

B

GO TO VEHICLE STABILITY CONTROL SYSTEM (DTC CHART)

A

(a) Replace the combination meter assembly (See page ).

NEXT

(a) Clear the DTCs (See page ).

(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 at the required speed of between 40 km/h (25 mph) and 200 km/h (125 mph).

(2) Turn the cruise control main switch on.

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

(c) Check for DTCs (See page ).

A

END

B

REPLACE ECM

C

REPLACE ECM