LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Toyota >> 2017 >> RAV4 SE, AWD >> Repair and Diagnosis (Single Page) >> Steering >> Steering Control Systems >> Lane Departure Alert System (W/ Steering Control) - Diagnostic Codes & Circuit Tests - (Except Hybrid) >> LANE DEPARTURE ALERT SYSTEM (W/ Steering Control) >> DTC C1A73: Driving Support ECU Receive Data Malfunction [10/2015 - ] >> Description
April 5, 2026: LEMON Manuals is launched! Read the announcement.

DTC C1A73: Driving Support ECU Receive Data Malfunction [10/2015 - ]: Description

If a communication error between the driving support ECU assembly and another ECU is detected, DTC C1A73 is stored.

DTC No. Detection Item DTC Detection Condition Trouble Area
C1A73 Driving Support ECU Receive Data Malfunction When the ignition switch is on for 2 seconds or more, a communication malfunction between the forward recognition camera and the driving support ECU assembly is detected for 5 seconds or more.
  • CAN communication system
  • Forward recognition camera
  • Driving support ECU assembly