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Home >> Toyota >> 2021 >> Avalon Touring >> Repair and Diagnosis >> Accessories & Equipment >> Collision/Avoidance >> Lane Departure Alert System - Diagnostic Codes & Circuit Tests (Except Hybrid) >> LANE DEPARTURE ALERT SYSTEM (w/ Steering Control) (for Gasoline Model) >> DTC C1A72: Communication Error from FCM to Driving Support ECU [04/2018 - 08/2021] >> Description

DTC C1A72: Communication Error from FCM to Driving Support ECU [04/2018 - 08/2021]: Description

If a communication error between the driving support ECU assembly and forward recognition camera is detected, DTC C1A72 is stored.

DTC No. Detection Item DTC Detection Condition Trouble Area
C1A72 Communication Error from FCM to Driving Support ECU 2 seconds after the engine switch is turned on (IG), a communication error between the driving support ECU assembly and the forward recognition camera is detected.
  • CAN communication system
  • Forward recognition camera
  • Pre-collision system
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