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Home >> Lexus >> 2008 >> IS 250 AWD >> Repair and Diagnosis >> Accessories & Equipment >> Cruise Control Systems >> Cruise Control >> Cruise Control System >> Cruise Main Indicator Light Circuit >> Inspection Procedure

Inspection Procedure

  1. PERFORM ACTIVE TEST USING TECHSTREAM 
    1. Connect the Techstream to the DLC3.
    2. Turn the engine switch on (IG).
    3. Turn the Techstream on.
    4. Enter the following menus: Body Electrical / Combination Meter / Active Test.
    5. Check the CRUISE main indicator light by performing the Active Test.

      Combination Meter: 

      ACTIVE TEST

      Tester Display Test Part Control Range Diagnostic Note
      Indicat. Lamp Cruise Turns CRUISE main indicator light BLINK/OFF -

      OK: Indicator light blinks/goes off. 

    NG: REPLACE COMBINATION METER ASSEMBLY 

    OK: Go to Next Step 

  2. 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 the following menus: Powertrain / Cruise Control / Data List.
    5. Check the Data List for proper functioning of the CRUISE main indicator light.

      ECM (Cruise Control): 

      DATA LIST

      Tester Display Test Part Control Range Diagnostic Note
      CCS Indicator M-CPU Cruise indicator signal (Main CPU)/ON or OFF ON: "CRUISE" on
      OFF: "CRUISE" off
      -

      OK: When the cruise control main switch is operated, the display changes as shown above. 

    NG: REPLACE ECM 

    OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN  PROBLEM SYMPTOMS TABLE