AIR CONDITIONING SYSTEM(for Automatic Air Conditioning System), Diagnostic DTC:B130C

DTC Code DTC Name
B130C Left Sunlight Probe Fault

DESCRIPTION

E107008E22

The cooler (solar sensor) thermistor is installed on the upper side of the instrument panel. It detects sunlight to control air conditioning control in AUTO mode. The output voltage from the cooler (solar sensor) thermistor varies in accordance with the amount of sunlight. When the sunlight increases, the output voltage increases. As the sunlight decreases, the output voltage decreases. The air conditioning control assembly detects changes in the output voltage from the cooler (solar sensor) thermistor.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

B130C

Left Sunlight Probe Fault

Short in cooler (solar sensor) thermistor circuit

  • Cooler (solar sensor) thermistor

  • Harness or connector between cooler (solar sensor) thermistor and air conditioning control assembly

  • Air conditioning control assembly

WIRING DIAGRAM

E266250E18

PROCEDURE

  1. CHECK HARNESS AND CONNECTOR (AIR CONDITIONING CONTROL ASSEMBLY - COOLER (SOLAR SENSOR) THERMISTOR)

    1. Disconnect the E54 air conditioning control assembly connector.

    2. Disconnect the F1 cooler (solar sensor) thermistor connector.

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      E54-2 (S5-1) - F1-1 (SS+)

      Always

      Below 1 Ω

      E54-3 (TSD) - F1-2 (SS-)

      Always

      Below 1 Ω

      E54-2 (S5-1) - Body ground

      Always

      10 kΩ or higher

      E54-3 (TSD) - Body ground

      Always

      10 kΩ or higher

    Result

    Proceed to

    OK

    NG
    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  2. REPLACE COOLER (SOLAR SENSOR) THERMISTOR

    1. Replace the cooler (solar sensor) thermistor.

      Click here

      Tip:

      Since the cooler (solar sensor) thermistor cannot be inspected while it is removed from the vehicle, replace the cooler (solar sensor) thermistor 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 B130C is output (When troubleshooting according to the DTC)

    A

    NG (When troubleshooting according to Problem Symptoms Table)

    B

    DTC B130C 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 (COOLER (SOLAR SENSOR) THERMISTOR WAS DEFECTIVE)