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Home >> Lexus >> 2010 >> SC 430 >> Repair and Diagnosis >> Accessories & Equipment >> Cruise Control Systems >> Cruise Control (Diagnostic Codes & Introduction) >> Cruise Control System >> Cruise Main Indicator Light Circuit >> Procedure
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Cruise Main Indicator Light Circuit: Procedure

  1. PERFORM ACTIVE TEST USING TECHSTREAM (CRUISE INDICATOR LIGHT) 
    1. Connect the Techstream to the DLC3.
    2. Check the CRUISE main indicator light by using Active Test.
      COMBINATION METER

      Test Display Test Part Control Range
      Indicat. La,p Cruise Cruise indicator light/ON or OFF Confirm that vehicle is stopped and engine is idling

      OK

      Indicator light illuminates/turns off.

    NG → See step   3 

    OK: Go to next step 

  2. READ VALUE USING TECHSTREAM (CRUISE INDICATOR LIGHT) 
    1. Connect the Techstream to the DLC3.
    2. Turn the ignition switch ON and the Techstream on.
    3. Select the item below in the Data List and read the display on the Techstream.
      CRUISE CONTROL

      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      CCS Indicator M-CPU Cruise indicator signal (Main CPU) / ON or OFF ON: CRUISE main indicator (Main CPU) is ON
      OFF: CRUISE main indicator (Main CPU) is OFF
      -

      OK

      When cruise control main switch operation is performed, the standard values will be above.

    NG → REPLACE ECM 

    OK → END 

  3. GO TO METER / GAUGE SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING  .