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:

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 ...

Defogging the windshield
Set the air outlet selector dial to position. Set the outside/recirculated air mode button to outside air mode if recirculated air mode is used. Perform the following operations accordingly: To adjust the fan speed, turn the fan speed control dial. To adjust the temperat ...

Inspection
Inspect generator brush holder assembly Using a vernier caliper, measure the brush length. Standard length: 9.5 To 11.5 Mm (0.374 To 0.453 In.) Minimum length: 4.5 Mm (0.177 In.) If the brush length is less than the minimum, replace the generator brush holder assembly. Inspe ...

В© 2011-2025 Copyright www.trav4.net