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Home >> Lexus >> 2008 >> IS F >> Repair and Diagnosis >> Accessories & Equipment >> Cruise Control Systems >> Cruise Control >> Dynamic Radar Cruise Control System >> DTC P1615 Communication Error from Distance Control ECU to ECM >> Inspection Procedure
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Inspection Procedure

NOTE: When the distance control ECU or ECM is replaced with a new one, initialization must be performed (See INSTALLATION  ).
  1. REPLACE DISTANCE CONTROL ECU 
    1. Replace the distance control ECU (See DISTANCE CONTROL ECU  ).
  2. CHECK DTC 
    1. Clear the DTC (See DTC CHECK / CLEAR  ).
    2. Turn the cruise control main switch on
    3. Drive the vehicle at the require speed (45 km/h (27 mph) or higher).
    4. Check if the same DTC is recorded (See DTC CHECK / CLEAR  )

      Result 

      RESULT REFERENCE

      Result Proceed to
      DTC P1615 is not output A
      DTC P1615 is output B

    B: REPLACE ECM (for 2UR-GSE)  (See ECM )

    A: END