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Home >> Lexus >> 2018 >> 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 B150D: Open in Engine Oil Temperature Sensor Circuit [11/2021 - ] >> Procedure

DTC B150D: Open in Engine Oil Temperature Sensor Circuit [11/2021 - ]: Procedure

  1. READ VALUE USING TECHSTREAM 
    1. Connect the Techstream to the DLC3.
    2. Turn the engine switch on (IG).
    3. Turn the Techstream on.
    4. Enter following menus: Body Electrical / Combination Meter / Data List.
    5. Read the Data List according to the display on the Techstream.

      Body Electrical > Combination Meter > Data List 

      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Engine Oil Temperature Engine oil temperature Min.: 0°C (32°F), Max.: 255°C (491°F)
      • When the indicator is in the center of the engine oil temperature receiver gauge:

        80 to 105°C (176 to 221°F)

      • When the indicator is in the red zone of the engine oil temperature receiver gauge:

        140°C (284°F) or more

      -

      Body Electrical > Combination Meter > Data List 

      Tester Display
      Engine Oil Temperature

      Result

      Result Proceed to
      Engine oil temperature data can be displayed on the Techstream A
      Engine oil temperature data cannot be displayed on the Techstream B

    Result: 

    See step  3

    Result: 

    See step  2

  2. CHECK FOR DTCs 
    1. Clear the DTCs.

      Body Electrical > Combination Meter > Trouble Codes 

    2. Check for DTCs.

      Body Electrical > Combination Meter > Trouble Codes 

      Result

      Result Proceed to
      DTC B150D is not output A
      DTC B150D is output B

    Result: 

    USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [11/2021 - 09/2022]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [09/2022 - ] 

    Result: 

    REPLACE COMBINATION METER ASSEMBLY. Refer to  REMOVAL [09/2020 - ] 

  3. INSPECT OIL TEMPERATURE SENSOR 
    1. Remove the oil temperature sensor.

      Refer to REMOVAL [11/2021 - ]

    2. Inspect the oil temperature sensor.

      Refer to INSPECTION [11/2021 - ]

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPLACE OIL TEMPERATURE SENSOR. Refer to  REMOVAL [11/2021 - ] 

    Result: 

    OK 

    See step  4

  4. CHECK HARNESS AND CONNECTOR (OIL TEMPERATURE SENSOR - COMBINATION METER ASSEMBLY) 
    1. Disconnect the K3 combination meter assembly connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      K3-24 (GAGE) - F158-2 (OT+) Always Below 1 Ω
      K3-32 (GND) - F158-1 (OT-) Always Below 1 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE COMBINATION METER ASSEMBLY. Refer to  REMOVAL [09/2020 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR