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berndberger1

Mobilio rear window heater issue

My 2014 Honda Mobilio with a gasoline engine has a rear window heating system that's stopped working. There's an error stored, and the windshield heating is weak. I suspect a bad battery. Anyone else seen this on their Mobilio?

Summary of the thread

A 2014 Honda Mobilio's rear window heating system has stopped working, with an error stored and weak windshield heating. The issue might be related to a low battery voltage, potentially caused by a bad battery cell. A similar problem in another vehicle was resolved by diagnosing and replacing the faulty battery. It is recommended to have the vehicle professionally diagnosed to accurately identify and resolve the issue.

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4 comment(s)

mia_stern81

Interesting. I had a similar gremlin in my old Opel Astra. The rear defroster just quit. Did you check the voltage on your battery? What kind of error code are you seeing?

berndberger1 (community.author)

An Opel Astra, you say? I checked the battery voltage, and it's a bit low. I'll get the error code soon with my diagnostic tool. How did you fix it?

mia_stern81

Voltage sounds suspect then. I chased wiring diagrams and relays for days on the Astra only to find a bad cell in the battery was the culprit. The draw from the rear window heater was just enough to push it over the edge. Honestly, save yourself the headache and get it properly diagnosed. A workshop will pinpoint the issue quickly.

berndberger1 (community.author)

I appreciate your insights! I'll take it to a workshop for a diagnostic evaluation. The estimated cost is around 290€. Thanks!

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HONDA

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MOBILIO