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Home >> Lexus >> 2019 >> RX 350 Base, FWD >> Repair and Diagnosis >> Restraints >> Restraints Control Systems >> Pre-Collision System - Diagnostic Codes & Circuit Tests >> Pre-Collision System >> DTC C1A01: Driving Support ECU [09/2015 - 08/2019] >> Description
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DTC C1A01: Driving Support ECU [09/2015 - 08/2019]: Description

The driving support ECU assembly uses the millimeter wave radar sensor assembly to detect obstacles in front of the vehicle.

Based on signals from the millimeter wave radar sensor assembly, the driving support ECU assembly calculated the risk of a collision and operates the pre-collision system when it determines that the risk is high.

DTC No. Detection Item DTC Detection Condition Trouble Area
C1A01 Driving Support ECU When the engine switch is on (IG), the driving support ECU assembly detects an internal malfunction for approximately 1 second. Driving support ECU assembly