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Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 41 (Dynamic Radar Cruise Control System (HV) - Diagnostic Codes & Circuit Tests) >> DYNAMIC RADAR CRUISE CONTROL SYSTEM (for HV Model) >> DTC P0575-04: Cruise Control System Internal Failure; DTC P0575-49: Cruise Control Internal Electronic Failure [12/2019 - 11/2023] >> Procedure

DTC P0575-04: Cruise Control System Internal Failure; DTC P0575-49: Cruise Control Internal Electronic Failure [12/2019 - 11/2023]: Procedure

WARNING: This page is about a different variant/trim than selected.
  1. CHECK FOR DTCs 
    1. Clear the DTCs.

      Powertrain > Radar Cruise 1 > Clear DTCs 

    2. Make sure that the DTC detection conditions are met.

      HINT: 

      If the detection conditions are not met, the system cannot detect the malfunction.

    3. Check for DTCs.

      Powertrain > Radar Cruise 1 > Trouble Codes 

      Result

      Result Proceed to
      DTC P0575-04 and P0575-49 are not output A
      DTC P0575-04 or P0575-49 is output B

    Result: 

    USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [12/2019 - ] 

    Result: 

    REPLACE HYBRID VEHICLE CONTROL ECU. Refer to  REMOVAL [12/2019 - 10/2022]  , or refer to  REMOVAL [10/2022 - 11/2023]