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:

Removal
1. PRECAUTION CAUTION: Be sure to read "PRECAUTION" thoroughly before servicing. 2. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL CAUTION: Wait for 90 seconds after disconnecting the cable to prevent the airbag working. 3. REMOVE INSTRUMENT PANEL FINISH PANEL SUBASSEMBLY LOWER L ...

Using the mechanical key (vehicles with a smart key system)
To take out the mechanical key, push the release button and take the key out. The mechanical key can only be inserted in one direction, as the key only has grooves on one side. If the key cannot be inserted in a lock cylinder, turn it over and reattempt to insert it. After using t ...

ECU Power Source Circuit
DESCRIPTION This is the power source for the tire pressure warning ECU. WIRING DIAGRAM INSPECTION PROCEDURE NOTICE: When replacing the tire pressure warning ECU, read the transmitter IDs stored in the old ECU using the intelligent tester and write them down before removal. It is neces ...

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