Toyota RAV4 manuals

Toyota Sienna Service Manual: Vehicle Speed Sensor "A"

DTC P0500 Vehicle Speed Sensor "A"

DESCRIPTION

The speed sensor detects the wheel speed and sends the appropriate signals to the skid control ECU.

The skid control ECU converts these wheel speed signals into a 4-pulse signal and outputs it to the ECM via the combination meter. The ECM determines the vehicle speed based on the frequency of these pulse signals.

DESCRIPTION

DESCRIPTION

MONITOR DESCRIPTION

The ECM assumes that the vehicle is being driven when the transmission counter gear indicates more than 300 rpm and over 30 seconds have passed since the park / neutral position switch was turned OFF.

If thre is no signal from the vehicle speed sensor with these conditions satisfied, the ECM concludes that the vehicle speed sensor is malfunctioning. The ECM will turn on the MIL and a DTC will be set.

MONITOR STRATEGY

MONITOR STRATEGY

TYPICAL ENABLING CONDITIONS

TYPICAL ENABLING CONDITIONS

TYPICAL ENABLING CONDITIONS

TYPICAL MALFUNCTION THRESHOLDS

TYPICAL MALFUNCTION THRESHOLDS

WIRING DIAGRAM

WIRING DIAGRAM

INSPECTION PROCEDURE

HINT: Read freeze frame data using the intelligent tester. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can be helpful in determining whether the vehicle was running or stopped, whether the engine was warmed up or not, whether the air-fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction.

1 CHECK SPEEDOMETER

  1. Drive the vehicle and check whether the operation of the speedometer in the combination meter is normal.

HINT:

2 READ VALUE OF INTELLIGENT TESTER (VEHICLE SPEED)

  1. Connect the intelligent tester to the DLC3.
  2.  Turn the ignition switch to the ON position.
  3.  Turn the tester on.
  4.  Select the following menu items: DIAGNOSIS / ENHANCED OBD II / DATA LIST / PRIMARY / VEHICLE SPD.
  5.  Drive the vehicle.
  6. Read the value displayed on the tester.

OK: Vehicle speeds displayed on tester and speedometer display are equal.

3 CHECK COMBINATION METER ASSEMBLY (+S VOLTAGE)

 CHECK COMBINATION METER ASSEMBLY

  1. Disconnect the C10 combination meter connector.
  2.  Turn the ignition switch to the ON position.
  3.  Measure the voltage between the terminal of the combination meter and body ground.

Standard voltage

Standard voltage

  1. Reconnect the combination meter connector.

4 CHECK COMBINATION METER ASSEMBLY (SPD SIGNAL WAVEFORM)

CHECK COMBINATION METER ASSEMBLY

  1. Shift the transmission gear selector lever to the neutral position.
  2.  Jack up the vehicle.
  3.  Turn the ignition switch to the ON position.

CHECK COMBINATION METER ASSEMBLY

  1. Measure the voltage between the terminal of the combination meter and body ground while the wheel is turned slowly.

Standard voltage

Standard voltage

HINT: The output voltage should fluctuate up and down, similarly to the diagram, when the wheel is turned slowly.

5 CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - ECM)

CHECK HARNESS AND CONNECTOR

  1. Disconnect the C10 combination meter connector.
  2.  Disconnect the E5 ECM connector.
  3.  Measure the resistance.

Standard resistance (Check for open)

Standard resistance

Standard resistance (Check for short)

Standard resistance

  1. Reconnect the combination meter connector.
  2.  Reconnect the ECM connector.

REPLACE ECM

Evaporative Emission Control System Leak Detected
DTC P0455 Evaporative Emission Control System Leak Detected (Gross Leak) DTC P0456 Evaporative Emission Control System Leak Detected (Very Small Leak) DTC SUMMARY DESCRIPTION The circuit des ...

Brake Switch
DTC P0504 Brake Switch "A" / "B" Correlation DTC P0724 Brake Switch "B" Circuit High DESCRIPTION The stop light switch is a duplex system that transmits two signals: S ...

Other materials:

Throttle Actuator Control Motor Circuit
DTC P2102 Throttle Actuator Control Motor Circuit Low DTC P2103 Throttle Actuator Control Motor Circuit High DESCRIPTION The throttle actuator is operated by the ECM and opens and closes the throttle valve using gears. The opening angle of the throttle valve is detected by the Throttle Posit ...

Playing an audio CD and MP3/WMA/AAC discs
Insert disc or select “CD” on the audio source selection screen with a disc inserted to begin listening to a CD. Audio control screen Pressing the “AUDIO” button displays the audio control screen from any screens of the selected source. Audio source selection screen appears D ...

The Rear Cross Traffic Alert function
The Rear Cross Traffic Alert functions when your vehicle is in reverse. It can detect other vehicles approaching from the right or left rear of the vehicle. It uses radar sensors to alert the driver of the other vehicle’s existence through flashing the outside rear view mirror indicators and ...

© 2011-2019 Copyright www.tsienna.net