Toyota RAV4 manuals

Toyota Sienna Service Manual: Vehicle Speed Sensor Malfunction

DTC P0500 Vehicle Speed Sensor Malfunction

DTC P0503 Vehicle Speed Sensor "A" Intermittent / Erratic / High

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 cruise control is in operation
  • Vehicle speed sensor
  •  Vehicle speed sensor signal circuit
  •  ECM

P0503

Momentary interruption and noise are detected when a rapid change of vehicle speed occurs while cruise control is in operation
  • Vehicle speed sensor
  •  Vehicle speed sensor signal circuit
  •  ECM

WIRING DIAGRAM

Refer to DTC P0500

INSPECTION PROCEDURE

Refer to DTC P0500

Diagnostic trouble code chart
If a trouble code is displayed during the DTC check, check the trouble areas listed for that code in the table below and proceed to the appropriate page. Dynamic Laser 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 ...

Other materials:

Inspection
1. INSPECT TIRES (a) Check the tires for wear and proper inflation pressure. Cold tire inflation pressure (b) Using a dial indicator, check the runout of the tires. Tire runout: 1.4 mm (0.055 in.) or less 2. ROTATE TIRES HINT: Rotate the tires as shown in the illustration. 3. INSP ...

Cooling fan motor
On-vehicle inspection 1. No. 1 Cooling fan motor (A) check that the motor turns smoothly when the battery is connected to the fan motor connector. (B) measure the current while the motor is turning. Standard current: 11.8 To 14.8 A at 20°c (68°f) if the result is not as specified, r ...

Stereo Component Amplifier Power Source Circuit
DESCRIPTION This circuit provides power to the stereo component amplifier. WIRING DIAGRAM INSPECTION PROCEDURE 1 INSPECT STEREO COMPONENT AMPLIFIER Disconnect the stereo component amplifier connectors. Measure the resistance according to the values in the table below. Standard ...

© 2011-2019 Copyright www.tsienna.net