Toyota RAV4 manuals

Toyota RAV4 (XA40) 2013-2018 Service Manual: Bus ic communication malfunction

Toyota RAV4. Bus ic communication malfunction


Description

The air conditioning harness connects the air conditioning amplifier and the servos. The air conditioning amplifier supplies power and sends operation instructions to each servo through the air conditioning harness. Each servo sends damper position information to the air conditioning amplifier.

Toyota RAV4. Bus ic communication malfunction


Wiring diagram

Toyota RAV4. Bus ic communication malfunction


Inspection procedure

  1. Check air conditioning amplifier

Toyota RAV4. Check air conditioning amplifier


  1. Remove the air conditioning amplifier with its connectors still connected.
  2. Measure the resistance of the wire harness side connector.

Standard resistance




  1. Check air conditioning amplifier

Toyota RAV4. Check air conditioning amplifier


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

Standard voltage




Replace air conditioning harness assembly

Compressor solenoid circuit (2006/01- )
Description In this circuit, the compressor receives a refrigerant compression demand signal from the air conditioning amplifier. Based on this signal, the compressor changes the degree of r ...

Multiplex communication circuit
Description The air conditioning amplifier communicates data with the ecm and combination meter through the can communication system. Wiring diagram Inspection procedure Check dt ...

Other materials:

Parking brake assembly
Components Disassembly Hint: Use the same procedures for the lh side and rh side. The procedures listed below are for the lh side. Remove rear wheel Disconnect rear disc brake cylinder mounting lh (see page br-55) Remove parking brake shoe adjusting hole plug Remove t ...

Steering column assembly
Components Removal Caution: Some of these service operations affect the srs airbag system. Read the precautionary notices concerning the srs airbag system before servicing the steering column (see page rs-1). Place front wheels facing straight ahead Disconnect cab ...

Meter control switches
: Change the screen and move the cursor : Change displayed content and scroll up/down the screen Press: Enter/Set Press and hold: Reset/Display customizable items/Display the cursor Move the main meter and return to the previous screen Call sending/receiving and history display Link ...

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