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Home >> Lexus >> 2003 >> ES 300 >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Cruise Control Systems >> Cruise Control System - Diagnosis >> DTC P0607/54: Control Module Performance >> Inspection Procedure
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Inspection Procedure

  1. READ VALUE OF HAND-HELD TESTER 
    1. Connect the hand-held tester to the DLC3.
    2. Turn the ignition switch ON and push the hand-held tester main switch ON.
    3. Select the item "CCS READY" in the DATA LIST and read its value displayed on the hand-held tester.

      OK: 

      ON" <==> "OFF: Change ON/OFF each time Main SW is pressed on. 

    1. OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN ON PROBLEM SYMPTOMS TABLE (See  PROBLEM SYMPTOMS TABLE   ) 
    2. NG: CHECK AND REPLACE ECM (See  ELECTRONIC CIRCUIT INSPECTION PROCEDURE  ) 
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