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DTC U0401-81: Invalid Data Received from ECM/PCM "A" Invalid Serial Data Received [01/2023 - ]: Description

If the ECM cannot recognize the forward recognition camera. DTC U0401-81 is stored.

DTC No. Detection Item DTC Detection Condition Trouble Area DTC Output from
U0401-81 Invalid Data Received from ECM/PCM "A" Invalid Serial Data Received Approximately 17 seconds or more after the engine switch is turned on (IG), the ECM cannot recognize the forward recognition camera for approximately 2 seconds or more. ECM Radar Cruise2