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:
Using the “setup” menu (“bluetooth*” menu)
Registering a bluetooth® device in the system allows the system
to function. The following functions can be used for registered
devices:
Functions and operation procedures
Press the “setup” button and select “bluetooth*” using the
“tune•scroll” knob.
Press the knob and sele ...
Air outlets and air flow
Upper body
Upper body and feet
Feet
Feet and windshield
Switching between outside air and recirculated air modes
Press .
The mode switches between outside air mode (indicator off) and recirculated
air mode (indicator on) each time
is pressed.
Adjusting the pos ...
Mass air flow circuit range / performance problem
Description
Refer to dtc p0100 (see page es-86).
Monitor description
The maf meter is a sensor that measures the amount of air flowing through the
throttle valve. The ecm
uses this information to determine the fuel injection time and to provide an
appropriate air-fuel ratio. Inside
...
