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

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual / Engine / Cruise Control / Dynamic Radar Cruise Control System(for Gasoline Model) / Driving Support ECU (C1A01)

DESCRIPTION

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

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

MIL

C1A01

Driving Support ECU

When the engine switch is on (IG) and the dynamic radar cruise control system is operating, the driving support ECU assembly detects an internal malfunction for approximately 0.2 seconds or more.

Driving support ECU assembly

Does not come on

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

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END
    Front Radar Sensor Country Code Mismatch (C1A0A)

    Vehicle Information Not Obtained (C1A02)

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