gerhard_tiger4
Gienia Temperature Display Issue
Summary of the thread
A 2017 Honda Gienia owner reported issues with the temperature display, a persistent check engine light, and slow engine warm-up. After checking the coolant level without finding a solution, it was suggested that the problem might be related to a faulty cooling grille fuse affecting the engine's thermal management. Upon inspection, the issue was confirmed to be a defective fuse, which was replaced to resolve the problem.
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4 comment(s)
gerhard_tiger4 (community.author)
Cooling grille fuse? I didn't even know that was a thing! Where would I find that? And what does 'thermal management' even mean?
reinhard_silver1
The fuse box location should be in your owner's manual; check there. Thermal management simply refers to the system that regulates your engine's temperature. If the grille isn't opening and closing properly due to a faulty fuse or other obstruction, it can cause those symptoms. I'd suggest getting it checked out by a workshop; better safe than sorry.
gerhard_tiger4 (community.author)
Thanks, that's super helpful! Turns out it was exactly that – a defective fuse for the cooling grille! Cost me 52€ to get it sorted. Appreciate the help!
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HONDA
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GIENIA
reinhard_silver1
I had a similar issue with my 2019 Opel Astra. Same symptoms: slow warm-up, temperature reading was off, and that pesky check engine light. In my case, it turned out to be a problem with the cooling grille getting restricted, which messed with the engine's thermal management. Have you checked the fuse for your cooling grille? If that's gone, it might be the culprit.