AIR CONDITIONING SYSTEM(for Automatic Air Conditioning System), Diagnostic DTC:B130D

DTC Code DTC Name
B130D Recirculation Motor Fault

DESCRIPTION

The No. 1 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 air inlet mode selection No. 1 damper servo sub-assembly to the appropriate position, which controls the air inlet mode (fresh, recirculation/fresh, and recirculation).

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

B130D

Recirculation Motor Fault

Air inlet damper position sensor value does not change even if air conditioning control assembly operates No. 1 damper servo sub-assembly

  • No. 1 damper servo sub-assembly

  • Air conditioning harness assembly between No. 1 damper servo sub-assembly and air conditioning control assembly

  • Air conditioning control assembly

WIRING DIAGRAM

E293856E01

PROCEDURE

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

    1. Disconnect the P1 air conditioning control assembly connector.

    2. Disconnect the P4 No. 1 damper servo sub-assembly connector.

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

      Standard Resistance

      Table 1. for LHD

      Tester Connection

      Condition

      Specified Condition

      P1-9 (INLET B2) - P4-6 (INLET B2)

      Always

      Below 1 Ω

      P1-10 (INLET B1) - P4-4 (INLET B1)

      Always

      Below 1 Ω

      P1-11 (INLET A2) - P4-3 (INLET A2)

      Always

      Below 1 Ω

      P1-12 (INLET A1) - P4-1 (INLET A1)

      Always

      Below 1 Ω

      P1-13 (V MOT INLET) - P4-2 (V MOT INLET)

      Always

      Below 1 Ω

      P1-9 (INLET B2) - Body ground

      Always

      10 kΩ or higher

      P1-10 (INLET B1) - Body ground

      Always

      10 kΩ or higher

      P1-11 (INLET A2) - Body ground

      Always

      10 kΩ or higher

      P1-12 (INLET A1) - Body ground

      Always

      10 kΩ or higher

      P1-13 (V MOT INLET) - Body ground

      Always

      10 kΩ or higher
      Table 2. for RHD

      Tester Connection

      Condition

      Specified Condition

      P1-9 (INLET B2) - P4-6 (INLET B2)

      Always

      Below 1 Ω

      P1-10 (INLET B1) - P4-4 (INLET B1)

      Always

      Below 1 Ω

      P1-11 (INLET A2) - P4-1 (INLET A2)

      Always

      Below 1 Ω

      P1-12 (INLET A1) - P4-3 (INLET A1)

      Always

      Below 1 Ω

      P1-13 (V MOT INLET) - P4-2 (V MOT INLET)

      Always

      Below 1 Ω

      P1-9 (INLET B2) - Body ground

      Always

      10 kΩ or higher

      P1-10 (INLET B1) - Body ground

      Always

      10 kΩ or higher

      P1-11 (INLET A2) - Body ground

      Always

      10 kΩ or higher

      P1-12 (INLET A1) - Body ground

      Always

      10 kΩ or higher

      P1-13 (V MOT INLET) - Body ground

      Always

      10 kΩ or higher

    Result

    Proceed to

    OK

    NG
    NG

    REPLACE AIR CONDITIONING HARNESS ASSEMBLY

    Click here

    OK

  2. REPLACE NO. 1 DAMPER SERVO SUB-ASSEMBLY

    1. Replace the No. 1 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 B130D is output (When troubleshooting according to the DTC)

    A

    NG (When troubleshooting according to Problem Symptoms Table)

    B

    DTC B130D 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. 1 DAMPER SERVO SUB-ASSEMBLY WAS DEFECTIVE)