Toyota RAV4 manuals

Toyota RAV4 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:

Front axle hub
Components (2005/11-2006/01) Components (2006/01- ) On-vehicle inspection Check front axle hub bearing Remove the front wheel. Disconnect the front disc brake cylinder (see page br-40). Remove the front disc. Inspect the axle hub backlash. Using a dial indicator ...

Front occupant classification sensor lh collision detection
Description Dtc b1785 is output when the occupant classification ecu receives a collision detection signal sent by the front occupant classification sensor lh when an accident occurs. Dtc b1785 is also output when the front seat rh is subjected to a strong impact, even if an actual acc ...

System description
Power door lock system description The power door lock system locks / unlocks all doors with a one-touch operation. The door control switch of the power window regulator master switch or door control switch on passenger side sends lock / unlock request signals to the main body ...

В© 2011-2023 Copyright www.trav4.net