Toyota RAV4 manuals

Toyota RAV4 Service Manual: Vehicle speed signal error (test mode dtc)

Toyota RAV4. Vehicle speed signal error (test mode dtc)


Description

The tire pressure warning ecu receives a speed signal from the combination meter. This dtc is stored upon entering test mode, and cleared when a vehicle speed signal of 12 mph (20 km/h) is detected for 3 seconds or more. The dtc is output only in test mode.

Toyota RAV4. Description


Wiring diagram

Toyota RAV4. Wiring diagram


Inspection procedure

Notice:

It is necessary to register an id code after replacing the tire pressure warning valve and transmitter and/or the tire pressure warning ecu (see page tw-9).

  1. Read value of intelligent tester (vehicle speed)

  1. Check the data list for proper functioning of the vehicle speed signal.

Toyota RAV4. Read value of intelligent tester (vehicle speed)


Ok: indicates actual speed.



  1. Check wire harness (ecu - meter)

Toyota RAV4. Check wire harness (ecu - meter)


  1. Disconnect the e56 ecu connector.
  2. Disconnect the e19 meter connector.
  3. Measure the resistance of the wire harness side connectors.

Standard resistance



  1. Check tire pressure warning ecu

Toyota RAV4. Check tire pressure warning ecu


  1. Measure the voltage of the connector.

Standard voltage


Hint:

As the vehicle speed (wheel revolution speed) increases, a cycle of the waveform narrows.



Replace tire pressure warning ecu

Receiver error
Description Wiring diagram Inspection procedure Notice: It is necessary to register an id code after replacing the tire pressure warning valve abd transmitter and/or the tire pressu ...

Tire pressure warning light circuit
Description If the tire pressure warning ecu detects trouble, the tire pressure warning light turns on and tire pressure monitor is canceled at the same time. At this time, the ecu records a dtc i ...

Other materials:

Open in occupant classification ecu battery positive line
Description Dtc b1794 is set when a malfunction is detected in the occupant classification ecu battery positive line. Wiring diagram Inspection procedure Check for dtc Turn the ignition switch on. Clear the dtcs (see page rs-249). Hint: First clear dtcs stored in the ...

Tire pressure warning light circuit
Description If the tire pressure warning ecu detects trouble, the tire pressure warning light turns on and tire pressure monitor is canceled at the same time. At this time, the ecu records a dtc in memory. Connect terminals tc and cg of the dlc3 to make the tire pressure warning light bli ...

Defogging the windshield
Set the air outlet selector dial to position. Set the outside/recirculated air mode button to outside air mode if recirculated air mode is used. Perform the following operations accordingly: To adjust the fan speed, turn the fan speed control dial. To adjust the temperat ...

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