DESCRIPTION When the forward recognition camera is replaced with a new one, the new forward recognition camera attempts to store the country specification information received from the main body ECU (multiplex network body ECU). If the forward recognition camera cannot store the country specification information, DTC C1AAA is stored.
CAUTION / NOTICE / HINT NOTICE:
HINT: This DTC is stored when the forward recognition camera cannot store the country specification information received from the main body ECU (multiplex network body ECU). 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
(a) Replace the forward recognition camera. Click here (b) Perform forward recognition camera adjustment. Click here
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Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Can Communication System(for Gasoline Model): Open in Bus 3 Main Bus Line
DESCRIPTION There may be an open circuit in one of the CAN main bus lines when the resistance between terminals 6 (CA3H) and 21 (CA3L) of the central gateway ECU (network gateway ECU) is 70 Ω or higher. Symptom Trouble Area Resistance between terminals 6 (CA3H) and 21 (CA3L) of the central gateway ...