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:
Front passenger occupant classification system
Your vehicle is equipped with a front passenger occupant classification
system. This system detects the conditions of the front
passenger seat and activates or deactivates the devices for the
front passenger.
Seat belt reminder light
Srs warning light
“Air bag off” indicator light ...
Terminals of ecu
Check instrument panel junction block (main body ecu)
Measure the voltage of the connectors.
If the result is not as specified, the junction block
(main body ecu) may have a malfunction. ...
Using the automatic air conditioning system
Press .
The dehumidification function begins to operate. Air outlets and fan speed
are automatically adjusted according to the temperature setting and
humidity.
Turn clockwise to
increases the temperature and turn
counterclockwise to decreases
the temperature.
T ...
