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Home >> Toyota >> 2013 >> Prius Plug-in >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 77 (Dynamic Radar Cruise Control System (Diagnostic Codes & Circuit Tests) (Except Plug-In)) >> Dynamic Radar Cruise Control System >> Circuit Tests >> Cruise Main Indicator Light Circuit >> Procedure
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Cruise Main Indicator Light Circuit: Procedure

WARNING: This page is about a different variant/trim than selected.
  1. PERFORM ACTIVE TEST USING TECHSTREAM 
    1. Connect the Techstream to the DLC3.
    2. Turn the power 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 Active Test.
      COMBINATION METER

      Tester Display Test Part Control Range Diagnostic Note
      Indicat. Lamp Cruise Cruise main indicator light
      (Constant speed control mode)
      OFF or ON Confirm that the vehicle is stopped with engine idling
      Indicat. Radar Cruise Cruise main indicator light
      (Vehicle-to-vehicle distance control mode)
      OFF or ON Confirm that the vehicle is stopped with engine idling

      OK

      The display changes in accordance with Active Test operation.

    NG → See step   4 

    OK: Go to next step 

  2. READ VALUE USING TECHSTREAM 
    1. Connect the Techstream to the DLC3.
    2. Turn the power 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

      Techstream Display Measurement Item/Range Normal Condition Diagnostic Note
      Cruise Control Main Switch Cruise control switch signal / ON or OFF ON: Main switch on
      OFF: Main switch off
      -

      OK

      When the cruise control main switch is operated, the display changes in accordance with switch operation.

    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 NO. 3 METER CIRCUIT PLATE. Refer to  DISASSEMBLY 
  5. REPLACE DRIVING SUPPORT ECU. Refer to  REMOVAL