Toyota RAV4 manuals

Toyota RAV4 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

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)

  1. Disconnect the e36 amplifier connector.
  2. Measure the voltage of the wire harness side connector.

Standard voltage


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




  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
Description When the heater control (blower switch) is set to position 1 or higher, the contact of the htr relay is closed, current flows to the blower motor, and the blower motor operates. The ...

Ig power source circuit
Description This is the main power source supplied to the air conditioning amplifier when the ignition switch is on. This power source is used for operating components, such as the air condition ...

Other materials:

Installation
Install air conditioner unit assembly Install the a/c unit with the bolt and nut. Torque: 9.8 N*m (100 kgf*cm, 7 ft.*Lbf) Install instrument panel reinforcement Install the instrument panel reinforcement with the 6 bolts. Torque: 20 n*m (204 kgf*cm, 15 ft.*Lbf) ...

Defogging the windshield
Press  . The dehumidification function operates and fan speed increases. Set the outside/recirculated air mode button to outside air mode if the recirculated air mode is used. (It may switch automatically.) To defog the windshield and the side windows early, turn the air flow and t ...

Air conditioning control assembly (for automatic air conditioning system)
Components Removal Disconnect cable from negative battery terminal Notice: Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to prevent airbag and seat belt pretensioner activation. Remove no. 2 Instrument cluster finish panel center ...

В© 2011-2019 Copyright www.trav4.net