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DTC C1A52: Driving Support ECU Communication Abnormal [09/2014 - 11/2017]: Description

The DTC C1A52 is stored when the ECM cannot recognize the driving support ECU assembly.

DTC No. Detection Item DTC Detection Condition Trouble Area
C1A52 Driving Support ECU Communication Abnormal When the cruise control switch is on and the vehicle is being driven at a speed of 36 km/h (22 mph) or more, the ECM cannot recognize the driving support ECU assembly for 2 seconds or more.
  • ECM
  • Driving support ECU assembly