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

  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
Description The blower motor is operated by signals from the air conditioning amplifier. Blower motor speed signals are transmitted in accordance with changes in the duty ratio. Wiring diagra ...

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:

Disassembly
Hint: When removing the ornament plate and emblem, heat the radiator grille, ornament plate and emblem using a heat light. Standard heating temperature Notice: Do not heat the emblem base and emblem excessively. Remove hood to radiator grille seal Remove the double-side tape. Deta ...

Sliding roof control switch circuit
Description If either the sliding function or tilt function does not operate, there may be a malfunction in the sliding roof control switch circuit. Wiring diagram Inspection procedure Perform active test by intelligent tester (sliding roof operation) Select the active test, use ...

Idle control system malfunction
Description The idling speed is controlled by the etcs (electronic throttle control system). The etcs is comprised of: 1) the one valve type throttle body; 2) the throttle actuator, which operates the throttle valve; 3) the throttle position (tp) sensor, which detects the opening angle of ...

В© 2011-2020 Copyright www.trav4.net