Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: Vehicle Information Unmatched (C1AAC)

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual / Engine / Cruise Control / Lane Departure Alert System (w/ Steering Control)(for Gasoline Model) / Vehicle Information Unmatched (C1AAC)

DESCRIPTION

When the forward recognition camera is replaced with a new one, the new forward recognition camera attempts to store the vehicle information received from the ECM. If the vehicle information stored in the forward recognition camera is different from that stored in the ECM, DTC C1AAC is stored.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area
C1AAC	Vehicle Information Unmatched	2 seconds after the engine switch is turned on (IG), the vehicle information received from the ECM and that stored in the forward recognition camera do not match.	Forward recognition camera

CAUTION / NOTICE / HINT

NOTICE:

When replacing the forward recognition camera, always replace it with a new one. If a forward recognition camera which was installed to another vehicle is used, the information stored in the forward recognition camera will not match the information from the vehicle. As a result, a DTC may be stored.
If the forward recognition camera has been replaced with a new one, be sure to perform forward recognition camera adjustment.
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HINT:

This DTC is stored when the vehicle information stored in the forward recognition camera and that stored in the ECM do not match. If the forward recognition camera or ECM has been replaced, check if a forward recognition camera or ECM from another vehicle was used.

PROCEDURE