Toyota RAV4 (XA40) 2013-2018 Service Manual: Compressor lock sensor circuit
Description
This sensor sends 1 pulse per engine revolution to the air conditioning amplifier. If the ratio of the compressor speed divided by the engine speed is smaller than a predetermined value, the air conditioning amplifier turns the compressor off, and the indicator blinks at approximately 1 second intervals.
Wiring diagram
Inspection procedure
- Check air conditioning amplifier (lock signal)
- Remove the air conditioning amplifier with its connectors still connected.
- Check the waveform of the amplifier connector.
Ok:
waveform is as shown in the illustration.
- Inspect compressor lock sensor
- Disconnect the b47 compressor lock sensor connector.
- Measure the resistance of the sensor.
Standard resistance 
- Check wire harness (compressor lock sensor - air conditioning amplifier)
- Disconnect the b47 compressor lock sensor connector.
- Disconnect the e36 amplifier connector.
- Measure the resistance of the wire harness side connectors.
Standard resistance 
Replace air conditioning amplifier
Evaporator temperature sensor circuit
Description
The no. 1 Cooler thermistor (evaporator temperature sensor) is installed on
the evaporator in the air
conditioning unit to detect the temperature of the cooled air that has passed ...
Pressure sensor circuit
Description
This dtc is output when the refrigerant pressure is either extremely low
(0.19 Mpa [2.0 Kgf/cm2, 28 psi]
or less) or extremely high (3.14 Mpa [32.0 Kgf/cm2, 455 psi] or more). The ...
Other materials:
Data list / active test
Read data list
Hint:
Using the intelligent tester's data list allows switch,
actuator and other item values to be read without
removing any parts. Reading the data list early in
troubleshooting is one way to save time.
Connect the intelligent tester (with can vim) to the
dlc3.
Turn ...
Initialization
Zero point calibration
Notice:
Make sure that the front passenger seat is not
occupied before performing the operation.
Hint:
Perform the zero point calibration and sensitivity check if
any of the following conditions apply.
The occupant classification ecu is replaced.
Accessories ( ...
Smart key system
The following operations
can be performed simply by
carrying the electronic key
on your person, for example
in your pocket. The driver
should always carry the
electronic key.
Locks and unlocks the side
doors
Locks and unlocks the back
door
Starts the engine
â– Antenna location
Antennas ou ...
