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

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Other materials:

Hood
Release the lock from the inside of the vehicle to open the hood. Opening the hood 1. Pull the hood lock release lever. The hood will pop up slightly. 2. Push the auxiliary catch lever to the left and lift the hood. 3. Hold the hood open by inserting the supporting rod into the slot. WARNING â–  ...

Evap system
Related dtcs If any evap system dtcs are set, the malfunctioning area can be determined using the table below. Notice: If the reference pressure difference between the first and second checks is greater than the specification, all the dtcs relating to the reference pressure (p043e, p ...

Tire information
Typical tire symbols Full-size tire Compact spare tire Tire size DOT and Tire Identification Number (TIN) Location of treadwear indicators Tire ply composition and materials Plies are layers of rubber-coated parallel cords. Cords are the strands which form the plies in a tire. Radial tir ...

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