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Home >> Lexus >> 2012 >> IS F >> Repair and Diagnosis >> Accessories & Equipment >> Cruise Control Systems >> Dynamic Radar Cruise Control System (Diagnostics & Circuit Tests) >> Dynamic Radar Cruise Control System >> Circuit Tests >> Cruise Main Indicator Light Circuit >> Procedure
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Cruise Main Indicator Light Circuit: 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

      Techstream Display Test Part Control Range Diagnostic Note
      Indicat. Lamp Cruise CRUISE main indicator light OFF or ON Confirm that the vehicle is stopped, engine idling

      OK

      The indicator light blinks/goes off.

    NG → See step   4 

    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 / Radar Cruise / Data List.
    5. Check the Data List for proper functioning of the CRUISE main indicator light.
      RADAR CRUISE (ECM)

      Techstream Display Measurement Item/Range Normal Condition Diagnostic Note
      CCS Ready M-CPU Cruise control system standby condition (Main CPU) / ON or OFF Each time main switch is pushed, ON/OFF changes -
      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 → See step   5 

    OK → See step   3 

  3. PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to  PROBLEM SYMPTOMS TABLE 
  4. REPLACE COMBINATION METER ASSEMBLY. Refer to  COMPONENTS 
  5. REPLACE ECM (for 2UR-GSE). Refer to  COMPONENTS