Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: Driving Support ECU (C1A01)

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual / Vehicle Interior / Pre-collision / Pre-collision System(for Hv Model) / Driving Support ECU (C1A01)

DESCRIPTION

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

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

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

CAUTION / NOTICE / HINT

NOTICE:

When replacing the driving support ECU assembly, always replace it with a new one. If a driving support ECU assembly which was installed to another vehicle is used, the information stored in the driving support ECU assembly will not match the information from the vehicle. As a result, a DTC may be stored.

PROCEDURE

1.	REPLACE DRIVING SUPPORT ECU ASSEMBLY

(a) Replace the driving support ECU assembly.

Click here

END

Front Radar Sensor Region Code Mismatch (C1A0A)

Vehicle Information Not Obtained (C1A02)

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