Toyota RAV4 (XA40) 2013-2018 Service Manual: Terminals of ecu
- Check transponder key amplifier
- Disconnect the e5 amplifier connector.
- Measure the resistance of the wire harness side connector.
If the result is not as specified, there may be a malfunction in the wire harness.
- Reconnect the e5 amplifier connector.
- Measure the resistance and voltage of the connector.
If the result is not as specified, there may be a malfunction in the amplifier.
- Using an oscilloscope, check the waveform 1.
Waveform 1 (reference): 
- Using an oscilloscope, check the waveform 2.
Waveform 2 (reference): 
- Check transponder key ecu
- Disconnect the e46 ecu connector.
- Measure the resistance and voltage of the wire harness side connector.
If the result is not as specified, there may be a malfunction on the wire harness side.
- Reconnect the e46 ecu connector.
- Measure the resistance and voltage of the connector.
If the result is not as specified, there may be a malfunction in the ecu.
- Using an oscilloscope, check the waveform 1.
Waveform 1 (reference): 
- Using an oscilloscope, check the waveform 2.
Waveform 2 (reference): 
- Using an oscilloscope, check the waveform 3.
Waveform 3 (reference):
- Using an oscilloscope, check the waveform 4.
Waveform 4 (reference): 
- Check ecm
- Measure the resistance and voltage of the wire harness side connector.
If the result is not as specified, there may be a malfunction in the wire harness.
- Using an oscilloscope, check the waveform 1.
Waveform 1 (reference): 
- Using an oscilloscope, check the waveform 2.
Waveform 2 (reference): 
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:
Operation check
Inspect driver side seat belt warning light
Turn the ignition switch on.
When the driver seat belt is not fastened, check that
the driver seat belt warning light on the combination
meter blinks.
When the driver seat belt is fastened, check that the
driver seat belt warning light o ...
Traction control switch (for 2wd)
Components
Removal
Disconnect cable from negative battery
terminal
Caution:
Wait at least 90 seconds after disconnecting the
cable from the negative (-) battery terminal to
prevent airbag and seat belt pretensioner activation.
Remove traction control switch (auto lsd switch)
...
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 occurring in the engine
immobiliser system even though the security
indicator light is not illuminated ...
