Toyota RAV4 manuals

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

Description

When the a/c switch is turned on, the magnetic clutch on signal is sent from the air conditioning amplifier. Then the mg clt relay turns on to operate the magnetic clutch.

Wiring diagram

Toyota RAV4. Compressor circuit


Inspection procedure

  1. Perform active test by intelligent tester (a/c mag clutch)

  1. Connect the intelligent tester (with can vim) to the dlc3.
  2. Turn the ignition switch on and turn the intelligent tester main switch on.
  3. Select the item below in the active test and then check that the compressor magnetic relay operates.

Toyota RAV4. Perform active test by intelligent tester (a/c mag clutch)




  1. Inspect fuse (ecu-ig1)

  1. Remove the ecu-ig1 fuse from the instrument panel junction block.
  2. Measure the resistance of the fuse.

Standard resistance: below 1




  1. Inspect magnetic clutch relay (marking: mg clt)

Toyota RAV4. Inspect magnetic clutch relay (marking: mg clt)


  1. Remove the magnetic clutch relay from the engine room no. 1 Relay block.
  2. Measure the resistance of the relay.

Standard resistance




  1. Check wire harness (air conditioning amplifier - battery)

Toyota RAV4. Check wire harness (air conditioning amplifier - battery)


  1. Disconnect the e37 amplifier connector.
  2. Measure the voltage of the wire harness side connector.

Standard voltage




  1. Check air conditioning amplifier (mgc voltage)

Toyota RAV4. Check air conditioning amplifier (mgc voltage)


  1. Remove the air conditioning amplifier with its connectors still connected.
  2. Measure the voltage of the connector.

Standard voltage




  1. Check magnetic clutch

Toyota RAV4. Check magnetic clutch


  1. Disconnect the b47 magnetic clutch connector.
  2. Connect the battery's positive (+) lead to terminal 3 of the magnetic clutch and the negative (-) lead to the body ground.

Ok: magnetic clutch is engaged.



Repair or replace wire harness (magnetic clutch - ecu-ig1)

Blower motor circuit
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Ig power source circuit
Description This is the main power source supplied to the air conditioning amplifier when the ignition switch is on (ig). This power source is used for operating components, such as the air cond ...

Other materials:

Check mode procedure
Description Check mode has a higher sensitivity to malfunctions and can detect malfunctions that normal mode cannot detect. Check mode can also detect all the malfunctions that normal mode can detect. In check mode, dtcs are detected with 1 trip detection logic. Check mode pro ...

Dtc check / clear
Check dtc Connect the intelligent tester (with can vim) to the dlc3. Turn the ignition switch on and turn the intelligent tester on. Select the following menu items: diagnosis / obd/mobd / immobiliser / dtc info / current codes. Check dtcs and then write them down. Hint ...

Using the steering wheel audio switches
Some audio features can be controlled using the switches on the steering wheel. Operation may differ depending on the type of audio system or navigation system. For details, refer to the manual provided with the audio system or navigation system. Volume Radio mode: selects a radio stat ...

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