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dieterjones95

Maxima rear window heating issue

I'm experiencing an issue with my 2014 Nissan Maxima (gasoline engine). The rear window heating is not functioning. The error memory stores an error, and the windshield heating doesn't work as expected either. Could a heavily discharged or defective battery really cause this? The car has 165908 km. Any insights before I start tearing things apart?

4 comment(s)

berndfeuer1

Interesting issue. Does the error code point specifically to the heating coil circuit, or is it a more general electrical fault? Have you checked the voltage of your battery? A weak battery can cause all sorts of weird electrical gremlins. It's worth a shot before digging deeper into the defroster repair.

dieterjones95 (Author)

The error code is rather generic, pointing to a general electrical malfunction. I haven't put a multimeter on the battery yet, I admit. If the battery voltage is indeed low, could that genuinely prevent the rear window heating from working, while other functions seem relatively normal?

berndfeuer1

A low voltage can definitely cause issues with high-draw components like the heating coil. The car's computer might be prioritizing other systems. Given the generic error code and your symptoms, a battery issue is highly probable. However, considering the error memory, I suggest visiting a workshop to have them diagnose the electrical system properly. It might save you time and money in the long run.

dieterjones95 (Author)

Thanks for the advice. I took it to a local workshop as you suggested. Turns out, the battery was indeed the culprit. A new battery and a reset of the error memory did the trick. Repair cost was around 290€. Appreciate the help!

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