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Home >> Lexus >> 2008 >> GS 450h >> Repair and Diagnosis >> Accessories & Equipment >> Cruise Control Systems >> Cruise Control >> Cruise Control System >> Cruise Main Indicator Light Circuit >> Inspection Procedure
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Inspection Procedure

  1. PERFORM ACTIVE TEST USING TECHSTREAM (CRUISE MAIN INDICATOR LIGHT) 
    1. Select the ACTIVE TEST, use the Techstream (with CAN VIM) to generate a control command, and then check that the CRUISE main indicator light illuminates.

      Combination meter 

      DTC DETECTION CONDITION CHART

      Tester Display Test Part Control Range Diagnostic Note
      Indicat. Lamp Cruise CRUISE main Indicator light ON / OFF -

      OK: 

      Indicator light turns on / turns off. 

    NG: GO TO METER / GAUGE SYSTEM  (See HOW TO PROCEED WITH TROUBLESHOOTING )

    OK: Go to Next Step 

  2. READ VALUE USING TECHSTREAM (CRUISE CONTROL MAIN SWITCH) 
    1. Check the DATA LIST for proper functioning of the CRUISE main indicator light.

      Hybrid vehicle control ECU 

      NORMAL CONDITION CHART

      Tester Display Measurement Item / Range Normal Condition Diagnostic Note
      CCS Indicator M-CPU Cruise indicator signal (Main CPU) / ON or OFF ON: "CCS READY" ON
      OFF: "CCS READY" OFF
      -

      OK: 

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

    NG: REPLACE CRUISE CONTROL MAIN SWITCH 

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