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Home >> Lexus >> 2020 >> IS 350 Base, RWD >> Repair and Diagnosis >> Electrical >> Gauges >> Meter / Gauge System - Diagnostic Codes (2 Of 2) & Symptom Tests (1 Of 2) >> Meter / Gauge System >> DTC B150C: Lost Communication with LIN [04/2013 - 08/2015] >> Procedure

DTC B150C: Lost Communication with LIN [04/2013 - 08/2015]: Procedure

  1. CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - WINDSHIELD WIPER SWITCH ASSEMBLY OR RAIN SENSOR) 
    1. Disconnect the K3 combination meter assembly connector.
    2. Disconnect the K24 windshield wiper switch assembly connector.
    3. Disconnect the S7 rain sensor connector.
    4. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      K3-34 (LIN) - K24-8 (MPX1) Always Below 1 Ω
      K3-34 (LIN) - S7-1 (MPX) Always Below 1 Ω
      K3-34 (LIN) - Body ground Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  2

  2. REPLACE RAIN SENSOR 
    1. Replace the rain sensor with a new or known good one.

      Refer to REMOVAL [04/2013 - 10/2016]

    2. Clear the DTCs.

      Refer to DTC CHECK / CLEAR [04/2013 - ]

      Body Electrical > Combination Meter > Clear DTCs 

    3. Check for DTCs.

      Refer to DTC CHECK / CLEAR [04/2013 - ]

      Body Electrical > Combination Meter > Trouble Codes 

      OK

      DTC B150C is not output.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    END 

    Result: 

    NG 

    See step  3

  3. REPLACE WINDSHIELD WIPER SWITCH ASSEMBLY 
    1. Replace the windshield wiper switch assembly with a new or known good one.

      Refer to REMOVAL [04/2013 - ]

    2. Clear the DTCs.

      Refer to DTC CHECK / CLEAR [04/2013 - ]

      Body Electrical > Combination Meter > Clear DTCs 

    3. Check for DTCs.

      Refer to DTC CHECK / CLEAR [04/2013 - ]

      Body Electrical > Combination Meter > Trouble Codes 

      OK

      DTC B150C is not output.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    END 

    Result: 

    NG 

    REPLACE COMBINATION METER ASSEMBLY. Refer to  REMOVAL [04/2013 - 10/2016]