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Home >> Lexus >> 2021 >> RC F Base >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Drivers Assistance Systems - ADAS >> Dynamic Radar Cruise Control System - Diagnostic Codes & Circuit Tests >> Dynamic Radar Cruise Control System >> DTC C1A03: Driving Support ECU Internal Logical Error [11/2017 - 01/2023] >> Description

DTC C1A03: Driving Support ECU Internal Logical Error [11/2017 - 01/2023]: Description

This DTC indicates an internal malfunction of the driving support ECU assembly.

DTC No. Detection Item DTC Detection Condition Trouble Area
C1A03 Driving Support ECU Internal Logical Error When the engine switch is on (IG), the driving support ECU assembly detects an internal malfunction for approximately 0.2 seconds. Driving support ECU assembly