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Nice!! :D I was thinking about jerry-rigging a fuse, but I'm too cautious to take the risk of what could happen if the connection came loose. Also I'd hate to do the job over if it failed. Now I have a couple of compatible fuses, should the heater fail again (which I'm sure it will, given...

Just missed brycenesbitt's post. If you are up for the job, get Nissan's technical manual online. You need to remove the inverter, and some cowl extension stuff (wipers etc) to get the junction box out. It's tricky to get out, and it's a bit heavy, so a helper is recommended. One tricky part is...

Just had the same problem with my 2011 Leaf. The PTC heater has a high voltage (400V) control circuit on one side, and coolant on the other side. The seal had failed, so coolant got into the control circuit and short circuited the 400V connection. That blew a fuse in the DC/DC junction box...