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Home >> Lexus >> 2009 >> LS 600hL >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Cruise Control Systems >> Dynamic Radar Cruise Control (Diagnostic Codes & Circuit Tests) >> Dynamic Radar Cruise Control System >> Distance Control Switch Circuit >> Procedure

Distance Control Switch Circuit: Procedure

  1. READ VALUE USING TECHSTREAM (DISTANCE CONTROL SWITCH) 
    1. Check the Data List for proper functioning of the distance control switch.
      RADAR CRUISE

      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Distant Control Switch Distance control switch signal/ON or OFF ON: Distance control switch is ON
      OFF: Distance control switch is OFF
      -

      OK

      Display changes according to steering pad switch with modulator (distance control switch) operation described in above table.

    NG → See step   2 

    OK → See step   3 

  2. READ VALUE USING TECHSTREAM (STEERING PAD SWITCH WITH MODULATOR) 
    1. Check the Data List for proper functioning of the steering pad switch with modulator.
      STEERING PAD SWITCH

      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      ACC SW Steering pad switch with modulator signal/ON or OFF ON: Steering pad switch with modulator is ON
      OFF: Steering pad switch with modulator is OFF
      -

      OK

      Display changes according to steering pad switch with modulator (distance control switch) operation described in above table.

    NG → See step   4 

    OK → See step   5 

  3. PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to  PROBLEM SYMPTOMS TABLE 
  4. REPLACE STEERING PAD SWITCH WITH MODULATOR. Refer to  REMOVAL - Step 12 
  5. REPLACE DRIVING SUPPORT ECU. Refer to  REMOVAL