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:

Master cylinder pressure sensor check (when using sst check wire)
(a) Leave the vehicle in a stationary condition and release the brake pedal for 1 second or more, and quickly depress the brake pedal with a force of 98 N (10 kgf, 22 lbf) or more for 1 second or more. (b) Check the ABS warning light stays on for 3 seconds. HINT: At this time, the ABS wa ...

Seat Belt Buckle Switch LH Circuit Malfunction
DTC B0126/27 Seat Belt Buckle Switch LH Circuit Malfunction DESCRIPTION The seat belt buckle switch LH circuit consists of the center airbag sensor assembly and the front seat inner belt assembly LH. DTC B0126/27 is recorded when a malfunction is detected in the seat belt buckle switch LH ...

Description of initialization
(a) Perform initialization in the following cases: Before delivery of a new vehicle. After replacement of the tire pressure warning ECU*. After replacement of the tire pressure warning valve and transmitter. Specified tire pressure changes depending on the size or type of the tire. ...

В© 2011-2019 Copyright www.tsienna.net