tomjung1
Frontier PTC Heater Error
Summary of the thread
A 2012 Nissan Frontier diesel is experiencing poor engine performance during cold starts, an error code related to the heater, and increased fuel consumption. The issue is suspected to be a defective electric auxiliary heater, specifically the PTC heater. The solution involves professional diagnosis and replacement of the faulty PTC heater, which resolves the performance issues.
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4 comment(s)
tomjung1 (community.author)
Yeah, the error code does point to the PTC heater. I gave the wiring a quick look, but didn't dive deep. Do you remember what the specific symptoms were on your truck, and did the error code clearly identify the PTC heater?
juliasilber80
Okay, so the error code match seems pretty definitive. My symptoms weren't quite as pronounced, but the code was the same. I ended up just taking it to a workshop. They confirmed the PTC heater was faulty. Since the code points directly to the heater, I'd suggest getting it checked out professionally.
tomjung1 (community.author)
Thanks. I appreciate the info. I took it to a workshop, and you were right, the PTC heater was the issue. Cost me 350€ to get it sorted, but it's running much better now.
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NISSAN
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FRONTIER
juliasilber80
I had something similar on my Frontier, though it wasn't exactly the same. Was the error code pointing specifically to the PTC heater? Have you checked the wiring and fuses related to the heater circuit?