Toyota RAV4 manuals

Toyota RAV4 (XA40) 2013-2018 Service Manual: Compressor lock sensor circuit

Toyota RAV4. 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.

Toyota RAV4. Compressor lock sensor circuit


Wiring diagram

Toyota RAV4. Compressor lock sensor circuit


Inspection procedure

  1. Check air conditioning amplifier (lock signal)

Toyota RAV4. Check air conditioning amplifier (lock signal)


  1. Remove the air conditioning amplifier with its connectors still connected.
  2. Check the waveform of the amplifier connector.

Ok: waveform is as shown in the illustration.


Toyota RAV4. Check air conditioning amplifier (lock signal)



  1. Inspect compressor lock sensor

Toyota RAV4. Inspect compressor lock sensor


  1. Disconnect the b47 compressor lock sensor connector.
  2. Measure the resistance of the sensor.

Standard resistance



  1. Check wire harness (compressor lock sensor - air conditioning amplifier)

Toyota RAV4. Check wire harness (compressor lock sensor - air conditioning amplifier)


  1. Disconnect the b47 compressor lock sensor connector.
  2. Disconnect the e37 amplifier connector.
  3. Measure the resistance of the wire harness side connectors.

Standard resistance



Replace air conditioning amplifier

Solar sensor circuit (passenger side)
Description The solar sensor, which is installed on the upper side of the instrument panel, detects sunlight and controls the air conditioning auto mode. The output voltage from the solar se ...

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:

What to do if... (Troubleshooting)
If there is a problem with the hands-free system or a bluetooth® device, first check the table below. When using the hands-free system with a bluetooth® device When registering/connecting a cellular phone When making/receiving a call When using the contact list W ...

Rear window wiper and washer
The rear window wiper and washer can be used by operating the lever. NOTICE â– When the rear window is dry Do not use the wiper, as it may damage the rear window. Operating the wiper lever Operating the switch operates the rear wiper as follows: *1 or *2 Off *1 or *2 Intermittent operation ...

Inside vehicle
General maintenance Performing the following maintenance checks on the vehicle is the owner's responsibility. The owner may perform the maintenance or take the vehicle to a service center. Check the parts of the vehicle described below on a daily basis. In most cases, special tools are not requ ...

© 2011-2025 Copyright www.trav4.net