Toyota RAV4 manuals

Toyota RAV4 Service Manual: No signal from transmitter id

Toyota RAV4. No signal from transmitter id


Description

The tire pressure warning valve and transmitter constantly sends radio waves to the tire pressure warning ecu.

Under the following conditions, the tire pressure warning antenna and receiver is unable to receive the signals from the tire pressure warning valve and transmitter, and a dtc is output.

Dtcs c2121/21 to c2125/25 can only be deleted by the tester. Dtcs c2181/81 to c2185/85 can be deleted when the transmitter sends a forced transmission signal or the test mode ends. Dtcs c2181/81 to c2185/85 are output only in the test mode.

Toyota RAV4. No signal from transmitter id


Hint:

When no signals are received for 60 minutes or more, a dtc is output.

It is necessary to perform the procedure to identify the tire pressure warning valve and transmitter that is malfunctioning because it cannot be identified by the output dtc.

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. Identify transmitter (corresponding to dtc)

  1. Set the pressure of each tire to the specified value.

    Standard pressure: 220 kpa (2.2 Kgf/cm2, 32 psi)

  2. Connect the intelligent tester (with can vim) to the dlc3.
  3. Turn the ignition switch on.
  4. Select tirepress by following the prompts displayed on the intelligent tester.

Toyota RAV4. Identify transmitter (corresponding to dtc)


Toyota RAV4. Identify transmitter (corresponding to dtc)


  1. Rapidly release the tire pressure from any tire by 40 kpa (0.4 Kgf/cm2, 5.8 Psi) for 30 seconds or more.

Hint:

  1. Check the data list.

Result


Notice:

  1. When the tirepress data (ids 1 to 5) changes, repeat the same procedure on the rest of the tires (one by one) to identify which tire pressure warning valve and transmitter the dtc corresponds to.
  2. Set the pressure of each tire to the specified value.

Standard pressure: 220 kpa (2.2 Kgf/cm2, 32 psi)

  1. Check all transmitters of the tires.

Result



  1. Check tire pressure warning valve and transmitter

  1. Select regit id code by following the prompts displayed on the intelligent tester.

Toyota RAV4. Check tire pressure warning valve and transmitter


Toyota RAV4. Check tire pressure warning valve and transmitter


  1. Remove the tire pressure warning valve and transmitter and check its id number (see page tw-61).
  2. Check whether the recorded transmitter id and the actual transmitter id match.

Result




Perform registration (transmitter id)

  1. Check wire harness (ecu - receiver)

Toyota RAV4. Check wire harness (ecu - receiver)


  1. Disconnect the e56 ecu connector.
  2. Disconnect the l20 receiver connector.
  3. Measure the resistance of the wire harness side connectors.

Standard resistance




  1. Read value of intelligent tester (tire pressure)

  1. Check the data list tire pressure valve.

Toyota RAV4. Read value of intelligent tester (tire pressure)


Ok: all tire pressure readings are equal to the actual tire pressure.

Notice:

It may take up to 1 minute to display the updated tire pressure data.



  1. Check id code (tire pressure warning valve and transmitter)

  1. Select regit id code by following the prompts displayed on the intelligent tester.

Toyota RAV4. Check id code (tire pressure warning valve and transmitter)


Toyota RAV4. Check id code (tire pressure warning valve and transmitter)


  1. Remove the tire pressure monitor valve and transmitter check its id number (see page tw-61).
  2. Check whether the recorded transmitter id and the actual transmitter id match.

Result




Perform registration (transmitter id)

Transmitter id
Description The tire pressure warning valve and transmitter that is installed in the tires and wheels measures the air pressure of the tires. The measured values are transmitted to the tire pr ...

Transmitter id
Description Hint: It is necessary to perform the procedure to identify the tire pressure monitor valve that is malfunctioning because it cannot be identified by the output dtc. Inspecti ...

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