Toyota Sienna Service Manual: Vehicle Speed Sensor Malfunction

Toyota Sienna Service Manual / Cruise control / Cruise control system / Diagnostic trouble code chart / Vehicle Speed Sensor Malfunction

DTC P0500 Vehicle Speed Sensor Malfunction

DTC P0503 Vehicle Speed Sensor Circuit Malfunction

DESCRIPTION

The cruise control system uses the same vehicle speed signal that is sent to the ECM for the SFI system.

If DTC P0500 is detected, perform the diagnosis using the inspection procedure for DTC P0500 in the SFI system. The speed signal is converted for use by the cruise control inside the ECM.

Both the SFI system and the cruise control system can set DTC P0500, however the detection conditions of the two systems are different.

DTC No.	DTC Detection Condition	Trouble Area
P0500	The vehicle speed signal from the vehicle speed sensor is cut for 0.14 sec. or more while the cruise control is in operation.	Combination meter assembly Vehicle speed sensor Vehicle speed sensor circuit ECM
P0503	Momentary interruption and noise malfunction codes are detected when a rapid change of vehicle speed occurs while the cruise control is in operation.

WIRING DIAGRAM

INSPECTION PROCEDURE

Diagnostic trouble code chart

If a trouble code is indicated during the DTC check, check the circuit listed for that code in the table below, and proceed to the applicable page. CRUISE CONTROL SYSTEM ...

Brake Switch "A" Circuit

DTC P0571 Brake Switch "A" Circuit DESCRIPTION When the brake pedal is depressed, the stop light switch sends a signal to the ECM. When the ECM receives this signal, it cancels the crui ...

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Definition of terms
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