AIR CONDITIONING SYSTEM Panel Switch Operation not Accepted

DESCRIPTION

If the air conditioning system does not operate even when the multi-display*1 or rear power seat switch (rear multi operation panel)*2 is operated, the following causes are possible.

Symptom Factor

  • Only air conditioning system does not operate even when the multi-display is operated*1

  • Only air conditioning system does not operate even when the rear power seat switch (rear multi operation panel) is operated*2

  • All functions (including air conditioning system) do not operate even when the multi-display is operated*1

  • All functions (including air conditioning system) do not operate even when the rear power seat switch (rea multi operation panel) is operated*2

  • CAN communication malfunction between air conditioning amplifier assembly and radio receiver assembly*1

  • CAN communication malfunction between air conditioning amplifier assembly and rear power seat switch (rear multi operation panel)*2

  • Air conditioning amplifier assembly malfunction

  • Radio receiver assembly malfunction

WIRING DIAGRAM

Figure 1. Front Air Conditioning System:

B004V5OE02
*1 Radio Receiver Assembly
*2 Air Conditioning Amplifier Assembly
*3 CAN Communication Line

Figure 2. Rear Air Conditioning System:

B004V5OE06
*1 Rear Power Seat Switch (Rear Multi Operation Panel)
*2 Air Conditioning Amplifier Assembly
*3 CAN Communication Line

PROCEDURE


  1. CHECK VEHICLE CONDITION

    Result
    Result Proceed to
    Front air conditioning system is malfunction A
    Rear air conditioning system is malfunction B

    B

    CHECK OPERATION (REAR POWER SEAT SWITCH) Click here

    A

  2. CHECK OPERATION (RADIO RECEIVER ASSEMBLY)


    1. When the multi-display is operated, check that the functions except air conditioning system are controlled normally.

      OK
      The functions except air conditioning system are controlled normally.
      Result
      Result
      OK
      NG

    OK

    REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY Click here

    NG

    GO TO NAVIGATION SYSTEM Click here

  3. CHECK OPERATION (REAR POWER SEAT SWITCH)


    1. When the rear power seat switch is operated, check that the functions except air conditioning system are controlled normally.

      OK
      The functions except air conditioning system are controlled normally.
      Result
      Result
      OK
      NG

    OK

    REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY Click here

    NG

    GO TO REAR MULTI OPERATION PANEL SYSTEM Click here