DYNAMIC RADAR CRUISE CONTROL SYSTEM(for Mono Camera Type), Diagnostic DTC:C1A52

DTC Code DTC Name
C1A52 Driving Support ECU Communication Abnormal

DESCRIPTION

DTC C1A52 is stored when the hybrid vehicle control ECU assembly cannot recognize the driving support ECU assembly.

DTC No. Detection Item DTC Detection Condition Trouble Area
C1A52 Driving Support ECU Communication Abnormal Approximately 17 seconds after the power switch is turned on (IG), the hybrid vehicle control ECU assembly cannot recognize the driving support ECU assembly for approximately 1.3 seconds or more. Hybrid vehicle control ECU assembly

CAUTION / NOTICE / HINT

Note

Before replacing the hybrid vehicle control ECU assembly, refer to Service Bulletin.

PROCEDURE


  1. CHECK FOR DTC (RADAR CRUISE 2)


    1. Clear the DTCs.

      Click here


      Powertrain > Radar Cruise2 > Clear DTCs

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

      Tech Tips

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

    3. Check for DTCs.

      Click here


      Powertrain > Radar Cruise2 > Trouble Codes
      Result
      Result Proceed to
      DTC C1A52 is not output A
      DTC C1A52 is output B

    A

    USE SIMULATION METHOD TO CHECK Click here

    B

    REPLACE HYBRID VEHICLE CONTROL ECU ASSEMBLY Click here