Toyota RAV4 manuals

Toyota RAV4 Service Manual: Terminals of ecu

  1. Check transponder key amplifier

Toyota RAV4. Check transponder key amplifier


  1. Disconnect the e5 amplifier connector.
  2. Measure the resistance of the wire harness side connector.

Toyota RAV4. Check transponder key amplifier


If the result is not as specified, there may be a malfunction in the wire harness.

  1. Reconnect the e5 amplifier connector.
  2. Measure the resistance and voltage of the connector.

Toyota RAV4. Terminals of ecu


If the result is not as specified, there may be a malfunction in the amplifier.

  1. Using an oscilloscope, check the waveform 1.

Waveform 1 (reference):


Toyota RAV4. Check transponder key amplifier


Toyota RAV4. Check transponder key amplifier


  1. Using an oscilloscope, check the waveform 2.

Waveform 2 (reference):


  1. Check transponder key ecu

Toyota RAV4. Check transponder key ecu


  1. Disconnect the e46 ecu connector.
  2. Measure the resistance and voltage of the wire harness side connector.

Toyota RAV4. Check transponder key ecu


If the result is not as specified, there may be a malfunction on the wire harness side.

  1. Reconnect the e46 ecu connector.
  2. Measure the resistance and voltage of the connector.

Toyota RAV4. Check transponder key ecu


Toyota RAV4. Check transponder key ecu


If the result is not as specified, there may be a malfunction in the ecu.

  1. Using an oscilloscope, check the waveform 1.

Waveform 1 (reference):


Toyota RAV4. Check transponder key ecu


  1. Using an oscilloscope, check the waveform 2.

Waveform 2 (reference):


Toyota RAV4. Check transponder key ecu


  1. Using an oscilloscope, check the waveform 3.

Waveform 3 (reference):


Toyota RAV4. Check transponder key ecu


  1. Using an oscilloscope, check the waveform 4.

Waveform 4 (reference):


Toyota RAV4. Check transponder key ecu


  1. Check ecm

Toyota RAV4. Check ecm


  1. Measure the resistance and voltage of the wire harness side connector.

Toyota RAV4. Check ecm


If the result is not as specified, there may be a malfunction in the wire harness.

  1. Using an oscilloscope, check the waveform 1.

Waveform 1 (reference):


Toyota RAV4. Check ecm


  1. Using an oscilloscope, check the waveform 2.

Waveform 2 (reference):


Toyota RAV4. Check ecm


Problem symptoms table
Hint: Use the table below to help determine the cause of the problem symptom. The potential causes of the symptoms are listed in order of probability in the "suspected area" column ...

Diagnosis system
Description Engine immobiliser system data and diagnostic trouble codes (dtcs) can be read through the vehicle's data link connector 3 (dlc3). In some cases, a malfunction may be occurr ...

Other materials:

Power steering ecu communication stop mode
Description Wiring diagram Inspection procedure Notice: Turn the ignition switch off before measuring the resistances of the main wire and the branch wire. After the ignition switch is turned off, check that the key reminder warning system and light reminder warning system ...

Transmission fluid temperature sensor "A" circuit
Description The automatic transmission fluid (atf) temperature sensor converts the atf temperature into a resistance value which is input into the ecm. The ecm applies a voltage to the temperature sensor through ecm terminal tho1. The sensor resistance changes with the atf temperature. ...

If the electronic key does not operate properly (vehicles with a smart key system)
If communication between the electronic key and vehicle is interrupted („_p. 107) Or the electronic key cannot be used because the battery is depleted, the smart key system and wireless remote control cannot be used. In such cases, the doors can be opened and the engine can be started by follo ...

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