DTC Logic

WARNING: This page is about a different car, the 2011 Nissan Leaf. However, it is still accessible from the selected car via links, so may be relevant.

DTC DETECTION CONDITION AND PROBABLE ACTIONS

DTC	Display contents of CONSULT	DTC detection condition	Action to take
U1A04	VIN UNFINISHED [U1A04]	No write of VIN number is detected.	Write VIN number using CONSULT. Refer to "DIAGNOSIS PROCEDURE ". Replace TCU if the malfunction is detected after VIN number is written. Refer to "REMOVAL AND INSTALLATION ".