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Home >> Lexus >> 2020 >> NX 300 Base, FWD >> Repair and Diagnosis >> Accessories & Equipment >> Exterior Lights >> Lighting System (Triple Beam Headlight) - Diagnostic Codes & Symptom Tests >> LIGHTING SYSTEM (For Triple Beam Headlight) >> Hazard Warning Switch Circuit [10/2014 - 09/2017] >> Procedure

Hazard Warning Switch Circuit [10/2014 - 09/2017]: Procedure

  1. READ VALUE USING TECHSTREAM (HAZARD FLASHER SWITCH) 
    1. Using the Techstream, read the Data List.

      Refer to DATA LIST / ACTIVE TEST [10/2014 - 09/2017]

      Body Electrical > Combination Meter > Data List 

      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Hazard Flasher Switch Hazard warning signal switch signal ON or OFF ON: Hazard switch on
      OFF: Hazard switch off
      -

      Body Electrical > Combination Meter > Data List 

      Tester Display
      Hazard Flasher Switch

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to  PROBLEM SYMPTOMS TABLE [10/2014 - 09/2017] 

    Result: 

    NG 

    See step  2

  2. INSPECT AIR CONDITIONING CONTROL ASSEMBLY (HAZARD WARNING SWITCH) 
    1. Remove the air conditioning control assembly (hazard warning switch).

      Refer to REMOVAL [10/2014 - 09/2017]

    2. Inspect the air conditioning control assembly (hazard warning switch).

      Refer to INSPECTION [10/2014 - ]

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPLACE AIR CONDITIONING CONTROL ASSEMBLY (HAZARD WARNING SIGNAL SWITCH). Refer to  REMOVAL [10/2014 - 09/2017] 

    Result: 

    OK 

    See step  3

  3. CHECK HARNESS AND CONNECTOR (AIR CONDITIONING CONTROL ASSEMBLY [HAZARD WARNING SWITCH] - COMBINATION METER ASSEMBLY AND BODY GROUND) 
    1. Disconnect the I13 air conditioning control assembly (hazard warning switch) connector.
    2. Disconnect the I11 combination meter assembly connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      I13-9 (HAZ) - I11-2 (HZSW) Always Below 1 Ω
      I13-11 (LJB) - I11-12 (HAZM) Always Below 1 Ω
      I13-14 (GND) - Body ground Always Below 1 Ω
      I13-9 (HAZ) or I11-2 (HZSW) - Body ground Always 10 kΩ or higher
      I13-11 (LJB) or I11-12 (HAZM) - Body ground Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE COMBINATION METER ASSEMBLY. Refer to  REMOVAL [10/2014 - 09/2017] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR