DESCRIPTION When the forward recognition camera is replaced with a new one, the new forward recognition camera attempts to store country specification information received from the main body ECU (multiplex network body ECU). If the country specification information stored in the forward recognition camera is different from that stored in the main body ECU (multiplex network body ECU), DTC C1AA1 is stored.
CAUTION / NOTICE / HINT NOTICE:
HINT: This DTC is stored when the destination information stored in the forward recognition camera and that stored in the main body ECU (multiplex network body ECU) do not match. If the forward recognition camera or main body ECU (multiplex network body ECU) has been replaced, check if a forward recognition camera or main body ECU (multiplex network body ECU) from another vehicle was used. PROCEDURE
HINT: When DTC C1AA1 is stored, DTC C1AAC may be stored at the same time. (a) Check for DTCs. Chassis > LKA/LDA > Trouble Codes
HINT: The forward recognition camera communicates with the main body ECU (multiplex network body ECU) via CAN communication. Confirm that the CAN communication system is functioning normally before proceeding. (a) Check for DTCs. Chassis > LKA/LDA > Trouble Codes
(a) Clear the DTCs. Chassis > LKA/LDA > Clear DTCs(b) Make sure that the DTC detection conditions are met. HINT: If the detection conditions are not met, the system cannot detect the malfunction. (c) Check for DTCs. Chassis > LKA/LDA > Trouble Codes
(a) Replace the forward recognition camera. Click here (b) Perform forward recognition camera adjustment. Click here
(a) Clear the DTCs. Chassis > LKA/LDA > Clear DTCs(b) Make sure that the DTC detection conditions are met. HINT: If the detection conditions are not met, the system cannot detect the malfunction. (c) Check for DTCs. Chassis > LKA/LDA > Trouble Codes
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Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Pre-collision System(for Gasoline Model): Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART Pre-collision System DTC No. Detection Item Link C1A01 Driving Support ECU C1A02 Vehicle Information Not Obtained C1A0A Front Radar Sensor Region Code Mismatch C1A10 Front Radar Sensor C1A11 Front Radar Sensor Incorrect Axial Gap C1A14 Front Radar Sensor Beam Axis Not A ...