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Home >> Lexus >> 2007 >> RX 400h AWD >> Repair and Diagnosis >> Accessories & Equipment >> Cruise Control Systems >> Cruise Control >> 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 combination meter operates.

    METER: 

    TESTER CONNECTION SPECIFIED CONDITION

    Tester Display Test Part Control Range Diagnostic Note
    CRUISE INDIC "CRUISE" indicator light ON/OFF -

    OK: Indicator light comes on. 

    NG: REPLACE COMBINATION METER 

    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.

      LASER CRUISE: 

      TESTER DISPLAY DIAGNOSTIC CHART

      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 is displayed and then OFF is displayed A
      CCS INDICATOR M Cruise indicator signal (Main CPU) / ON or OFF ON: "CCS READY" ON
      OFF: "CCS READY" OFF
      B

      OK: When cruise control main switch operation is performed, the result will be same as above. 

      HINT:

      A is OK, but B is NG → DTC output or hybrid vehicle control ECU failure

    NG: REPLACE HYBRID VEHICLE CONTROL ECU 

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