Toyota RAV4 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:
BMW display key- Malfunction
General information
A Check Control message is displayed.
BMW display key detection by the vehicle may
malfunction under the following circumstances:
The battery of the display key is discharged.
Interference of the radio connection from
transmission towers or other equipment with
high transmi ...
Operation check
Check electrical door lock operation
Check the basic function.
Check that all doors lock when the door control
switch (for manual operation) is turned to lock
and all doors unlock when turned to unlock.
Check that all doors lock when the driver side
door lock key cylinder is t ...
Voice activation system- Adjusting
Setting the language
The language to be used for voice activation and
system announcements can be set.
Via iDrive:
"CAR"
"Settings"
"General settings"
"Language"
"System language"
Select the desired language.
Setting the voice dialog
You can set the system to u ...
