Engine immobiliser

Terminals of ecu

8steps
~48min
2/5difficulty
Done 0 of 8
  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

Test yourself

A quick Toyota RAV4 quiz: every answer comes with an explanation and a link to the manual page.