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Home >> Lexus >> 2021 >> ES 350 Luxury >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Drivers Assistance Systems - ADAS >> Parking Support Alert System (Except Hybrid) - Diagnostic Codes & Symptom Tests >> PARKING SUPPORT ALERT SYSTEM (for Gasoline Model) >> DTC C1AEC: Front Sensor Communication Malfunction [06/2018 - 09/2022] >> Description

DTC C1AEC: Front Sensor Communication Malfunction [06/2018 - 09/2022]: Description

This DTC is stored when there is an open or short circuit in the communication line between the front sensors and the ECU, or when there is a malfunction in a front sensor.

DTC No. Detection Item DTC Detection Condition Trouble Area
C1AEC Front Sensor Communication Malfunction An open or short circuit in the communication line between the front sensors and ECU or a malfunction in a front sensor during initialization mode after the engine switch is turned on (IG).
  • Front ultrasonic sensor circuit
  • Harness or connector
  • Clearance warning ECU assembly