AIR CONDITIONING SYSTEM(for Automatic Air Conditioning System), Diagnostic DTC:B130E

DTC Code DTC Name
B130E Fault of the Driver Mixing Motor

DESCRIPTION

The No. 2 air conditioning radiator damper servo sub-assembly sends pulse signals to inform the air conditioning control assembly of the damper position. The air conditioning control assembly activates the motor (normal or reverse) based on these signals to move the No. 2 air conditioning radiator damper servo sub-assembly to the appropriate position. As a result, the amount of air passing through the heater core after passing the evaporator is adjusted, and the temperature of the output air is controlled.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

B130E

Fault of the Driver Mixing Motor

Air mix damper position sensor value does not change even if air conditioning control assembly operates No. 2 air conditioning radiator damper servo sub-assembly

  • No. 2 air conditioning radiator damper servo sub-assembly

  • Air conditioning harness assembly between No. 2 air conditioning radiator damper servo sub-assembly and air conditioning control assembly

  • Air conditioning control assembly

WIRING DIAGRAM

E293856E05

PROCEDURE

  1. CHECK AIR CONDITIONING HARNESS ASSEMBLY (AIR CONDITIONING CONTROL ASSEMBLY - NO. 2 AIR CONDITIONING RADIATOR DAMPER SERVO SUB-ASSEMBLY)

    1. Disconnect the P1 air conditioning control assembly connector.

    2. Disconnect the P2 No. 2 air conditioning radiator damper servo sub-assembly connector.

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      P1-3 (MIX B2) - P2-6 (MIX B2)

      Always

      Below 1 Ω

      P1-4 (MIX B1) - P2-4 (MIX B1)

      Always

      Below 1 Ω

      P1-5 (MIX A2) - P2-3 (MIX A2)

      Always

      Below 1 Ω

      P1-6 (MIX A1) - P2-1 (MIX A1)

      Always

      Below 1 Ω

      P1-26 (V MOT MIX) - P2-2 (V MOT MIX)

      Always

      Below 1 Ω

      P1-3 (MIX B2) - Body ground

      Always

      10 kΩ or higher

      P1-4 (MIX B1) - Body ground

      Always

      10 kΩ or higher

      P1-5 (MIX A2) - Body ground

      Always

      10 kΩ or higher

      P1-6 (MIX A1) - Body ground

      Always

      10 kΩ or higher

      P1-26 (V MOT MIX) - Body ground

      Always

      10 kΩ or higher

    Result

    Proceed to

    OK

    NG
    NG

    REPLACE AIR CONDITIONING HARNESS ASSEMBLY

    Click here

    OK

  2. REPLACE NO. 2 AIR CONDITIONING RADIATOR DAMPER SERVO SUB-ASSEMBLY

    1. Replace the No. 2 air conditioning radiator damper servo sub-assembly.

      Click here

      Tip:

      Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a new or known good one and check that the condition returns to normal.

    2. When troubleshooting according to the DTC.

      1. Check for DTCs.

        Click here

        Body Electrical > Air Conditioner > Trouble Codes

    3. When troubleshooting according to Problem Symptoms Table.

      OK

      Malfunction disappears.

    Result

    Result

    Proceed to

    DTC B130E is output (When troubleshooting according to the DTC)

    A

    NG (When troubleshooting according to Problem Symptoms Table)

    B

    DTC B130E is not output (When troubleshooting according to the DTC)

    C

    OK (When troubleshooting according to Problem Symptoms Table)
    A

    REPLACE AIR CONDITIONING CONTROL ASSEMBLY

    Click here

    B

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

    Click hereClick hereClick here

    C

    END (NO. 2 AIR CONDITIONING RADIATOR DAMPER SERVO SUB-ASSEMBLY WAS DEFECTIVE)