Toyota RAV4 manuals

Toyota Sienna Service Manual: 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 ...

Other materials:

Airbag ECU Communication Stop
DTC B1281 Airbag ECU Communication Stop DESCRIPTION DTC B1281 is output when communication between the airbag ECU and the multiplex network gateway ECU stops for more than 10 seconds. DTC No. DTC Detection Condition Trouble Area B1281 Airbag ECU communi ...

DTC check / clear
1. DTC CHECK (USING SST CHECK WIRE) Check the DTCs (Present trouble code).  Turn the ignition switch ON, and wait for approximately 60 seconds.  Using SST, connect terminals TC and CG of the DLC3. SST 09843-18040 NOTICE: Connect the terminals to the correct positi ...

Reassembly
1. INSTALL LIGHT CONTROL ECU (DISCHARGE HEADLIGHT)  Install a new headlight leveling motor base packing.  Install the headlight leveling motor assembly as shown in the illustration. Connect the connector with the claw Install the light control ECU with the 2 ...

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