LEMON Manuals: Even more car manuals for everyone
Home >> Lexus >> 2024 >> NX 250 FWD >> Repair and Diagnosis >> Electrical >> Gauges >> Meter / Gauge System - Diagnostic Codes (2 Of 2), Symptom Tests & Circuit Tests >> Meter / Gauge System >> Steering Pad Switch Circuit [11/2021 - ] >> Procedure

Steering Pad Switch Circuit [11/2021 - ]: Procedure

  1. PERFORM ACTIVE TEST USING GTS 
    1. Perform the Active Test according to the display on the GTS.

      Body Electrical > Combination Meter > Active Test 

      Tester Display Measurement Item Control Range Diagnostic Note
      Multi Switch (Up) Performs the same operation as pressing the up switch on steering pad switch OFF or ON -
      Multi Switch (Down) Performs the same operation as pressing the down switch on steering pad switch OFF or ON -
      Multi Switch (Left) Performs the same operation as pressing the left switch on steering pad switch OFF or ON -
      Multi Switch (Right) Performs the same operation as pressing the right switch on steering pad switch OFF or ON -
      Multi Switch (Enter) Performs the same operation as pressing the OK switch on steering pad switch OFF or ON -
      Multi Switch (Back) Performs the same operation as pressing the back switch on steering pad switch OFF or ON -

      Body Electrical > Combination Meter > Active Test 

      Tester Display
      Multi Switch (Up)

      Body Electrical > Combination Meter > Active Test 

      Tester Display
      Multi Switch (Down)

      Body Electrical > Combination Meter > Active Test 

      Tester Display
      Multi Switch (Left)

      Body Electrical > Combination Meter > Active Test 

      Tester Display
      Multi Switch (Right)

      Body Electrical > Combination Meter > Active Test 

      Tester Display
      Multi Switch (Enter)

      Body Electrical > Combination Meter > Active Test 

      Tester Display
      Multi Switch (Back)

      Result

      Result Proceed to
      Active Test can be performed correctly A
      Active Test cannot be performed correctly B

    Result: 

    B 

    REPLACE COMBINATION METER ASSEMBLY. Refer to  REMOVAL [11/2021 - ] 

    Result: 

    A 

    See step  2

  2. READ VALUE USING GTS 
    1. Read the Data List according to the display on the GTS.

      Body Electrical > Combination Meter > Data List 

      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Multi Switch (Up) Up switch on steering pad switch operation OFF or ON OFF: Switch released
      ON: Switch pushed      		 -
      Multi Switch (Down) Down switch on steering pad switch operation OFF or ON OFF: Switch released
      ON: Switch pushed      		 -
      Multi Switch (Left) Left switch on steering pad switch operation OFF or ON OFF: Switch released
      ON: Switch pushed      		 -
      Multi Switch (Right) Right switch on steering pad switch operation OFF or ON OFF: Switch released
      ON: Switch pushed      		 -
      Multi Switch (Enter) OK switch on steering pad switch operation OFF or ON OFF: Switch released
      ON: Switch pushed      		 -
      Multi Switch (Back) Back switch on steering pad switch operation OFF or ON OFF: Switch released
      ON: Switch pushed      		 -

      Body Electrical > Combination Meter > Data List 

      Tester Display
      Multi Switch (Up)
      Multi Switch (Down)
      Multi Switch (Left)
      Multi Switch (Right)
      Multi Switch (Enter)
      Multi Switch (Back)

      Result

      Result Proceed to
      The value of the Data List item is correct, and the combination meter assembly operates correctly A
      The value of the Data List item is correct, but the combination meter assembly does not operate correctly B
      The Data List item changes correctly C

    Result: 

    A 

    USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [11/2021 - ] 

    Result: 

    B 

    REPLACE COMBINATION METER ASSEMBLY. Refer to  REMOVAL [11/2021 - ] 

    Result: 

    C 

    See step  3

  3. INSPECT STEERING PAD SWITCH ASSEMBLY 

    Refer to INSPECTION [11/2021 - ]

    Result

    Proceed to
    OK
    NG

    Result: 

    NG 

    REPLACE STEERING PAD SWITCH ASSEMBLY. Refer to  REMOVAL [11/2021 - ] 

    Result: 

    OK 

    See step  4

  4. INSPECT SPIRAL CABLE SUB-ASSEMBLY 

    Refer to INSPECTION [11/2021 - ]

    Result

    Proceed to
    OK
    NG

    Result: 

    NG 

    REPLACE SPIRAL CABLE SUB-ASSEMBLY. Refer to  REMOVAL [11/2021 - ] 

    Result: 

    OK 

    See step  5

  5. CHECK HARNESS AND CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - COMBINATION METER ASSEMBLY AND BODY GROUND) 
    1. Disconnect the D22 combination meter assembly connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance (w/ Power Tilt and Power Telescopic)

      Tester Connection Condition Specified Condition
      D144-10 (+DP2) - D22-12 (MSTI) Always Below 1 Ω
      D144-11 (+DP) - D22-29 (MSM+) Always Below 1 Ω
      D144-4 (EAU) - Body ground Always Below 1 Ω
      D144-10 (+DP2) or D22-12 (MSTI) - Body ground Always 10 kΩ or higher
      D144-11 (+DP) or D22-29 (MSM+) - Body ground Always 10 kΩ or higher

      Standard Resistance (w/o Power Tilt and Power Telescopic)

      Tester Connection Condition Specified Condition
      D25-10 (+DP2) - D22-12 (MSTI) Always Below 1 Ω
      D25-11 (+DP) - D22-29 (MSM+) Always Below 1 Ω
      D25-4 (EAU) - Body ground Always Below 1 Ω
      D25-10 (+DP2) or D22-12 (MSTI) - Body ground Always 10 kΩ or higher
      D25-11 (+DP) or D22-29 (MSM+) - Body ground Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE COMBINATION METER ASSEMBLY. Refer to  REMOVAL [11/2021 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

scientia non olet · About LEMON Manuals