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Home >> Toyota >> 2007 >> Sienna LE, AWD >> Repair and Diagnosis >> Accessories & Equipment >> Cruise Control Systems >> Cruise Control System >> Dynamic Laser Cruise Control System >> Cruise Main Indicator Light Circuit >> Inspection Procedure

Inspection Procedure

  1. PERFORM ACTIVE TEST BY INTELLIGENT TESTER 
    1. Connect the intelligent tester to the DLC3.
    2. Select the ACTIVE TEST, use the intelligent tester to generate a control command, and then check that the CRUISE main indicator light blinks.

      METER: 

      METER - ACTIVE TEST LIST

      Tester Display Test Part Control Range
      CRUISE INDIC "CRUISE" indicator light BLINK /OFF

      OK: Indicator light blinks/goes off. 

    NG: REPLACE COMBINATION METER ASSEMBLY  (See REMOVAL )

    OK: Go to next step. 

  2. READ VALUE OF INTELLIGENT TESTER 
    1. Connect the intelligent tester to the DLC3.
    2. Turn the ignition switch to the ON position, and turn the intelligent tester main switch on.
    3. Check the DATA LIST for proper functioning of the CRUISE main indicator light.

      ECM (Cruise control): 

      ECM (CRUISE CONTROL) - DATA LIST

      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      CCS READY M Cruise control system standby condition (Main CPU) / ON or OFF Each time main switch is pushed, ON/OFF changes "1"
      CCS READY S Cruise control system standby condition (Sub CPU) / ON or OFF Each time main switch is pushed, ON / OFF changes "1"
      CCS INDICATOR M Cruise indicator signal (Main CPU) / ON or OFF ON: "CRUISE" ON
      OFF: "CRUISE" OFF
      "2"
      CCS INDICATOR S Cruise indicator signal (Sub CPU) / ON or OFF ON: "CRUISE" ON
      OFF: "CRUISE" OFF
      "2"

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

      HINT:

      "1" is OK, but "2" is NG → DTC output or ECM failure

    NG: REPLACE ECM  (See REMOVAL )

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