Toyota RAV4 Service Manual: Terminals of ecu (2006/01- )
- Check air conditioning amplifier
- Measure the voltage and resistance of the connectors.
Hint:
Check from the rear of the connector while it is connected to the air conditioning amplifier.
Hint:
*: For 2gr-fe
- Using an oscilloscope, check waveform 1.
A/c compressor* operation signal
Hint:
*: Compressor and pulley for 2az-fe, compressor and magnetic clutch for 2gr-fe.
- Using an oscilloscope, check waveform 2.
Blower motor control signal 
Hint:
When the blower level is increased, the duty ratio changes accordingly.
- Using an oscilloscope, check waveform 3.
Can communication signal 
Hint:
The waveform varies depending on the can communication signal.
- Using an oscilloscope, check waveform 4.
Can communication signal 
Hint:
The waveform varies depending on the can communication signal.
- Using an oscilloscope, check waveform 5.
Compressor lock sensor signal* 
Hint:
*: For 2gr-fe
- Check air conditioning control
- Measure the voltage and resistance of the connectors.
Terminals of ecu (2005/11-2006/01)
Check air conditioning amplifier
Measure the voltage and resistance of the
connectors.
Hint:
Check from the rear of the connector while it is
connected to the air conditioning ampl ...
Diagnosis system
Description
Air conditioning system data and the diagnostic
trouble codes (dtcs) can be read through the
data link connector 3 (dlc3) of the vehicle. When
the system seems to be malfunc ...
Other materials:
System too
Description
The fuel trim is related to the feedback compensation value, not to the basic
injection time. The fuel trim
consists of both the short-term and the long-term fuel trims.
The short-term fuel trim is fuel compensation that is used to constantly
maintain the air-fuel ratio at
...
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 of the table. Check each symptom by checking the
suspected areas in the order they are listed. Re ...
Low battery positive voltage
Description
When there is an abnormality in the power supply circuit of the brake
actuator (skid control ecu), the skid
control ecu sets a dtc and the operation is prohibited by the fail-safe
function. This dtc is set when the
voltage supplied to terminal ig1 is outside the dtc detection ...
