Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: 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 hybrid vehicle control ECU. If the vehicle information stored in the forward recognition camera is different from that stored in the hybrid vehicle control ECU, DTC C1AAC is stored.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

C1AAC

Vehicle Information Unmatched

2 seconds after the power switch is turned on (IG), the vehicle information received from the hybrid vehicle control ECU 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 hybrid vehicle control ECU do not match. If the forward recognition camera or hybrid vehicle control ECU has been replaced, check if a forward recognition camera or hybrid vehicle control ECU from another vehicle was used.

PROCEDURE

1.

REPLACE FORWARD RECOGNITION CAMERA

(a) Replace the forward recognition camera.

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(b) Perform forward recognition camera adjustment.

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NEXT

END

    FCM Destination Information Uninitialized (C1AAA)

    Vehicle Information Initialization Incomplete (C1AAD)

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