vincenteis10
Avancier weak battery flickering lights
Summary of the thread
The 2020 Honda Avancier is experiencing a weak battery and flickering lights, with low battery voltage under load. The issue is suspected to be a defective battery sensor. A similar case confirmed that a faulty battery sensor can cause these symptoms, and replacing it resolved the problem. The recommended solution is to have the sensor checked and replaced if necessary, which successfully restored normal function in this instance.
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4 comment(s)
vincenteis10 (community.author)
Terminals look clean. Was it actually the battery sensor in your case? Any other telltale signs I should be looking for before I replace it?
svenfuchs6
Yep, it was the battery sensor alright. No other signs, really. It just progressively got worse until the car barely started. Given your symptoms, I'd say get it checked at a workshop. They can confirm it with proper diagnostics.
vincenteis10 (community.author)
Took the Avancier to the workshop, and you were spot on – it was indeed a defective battery sensor. The replacement, including labor, set me back about 315€. Working like new now!
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HONDA
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AVANCIER
svenfuchs6
Whoa, that sounds familiar! I have an Avancier too, and I had almost the exact same symptoms. Weak starts and flickering lights drove me nuts. The battery health seemed totally random. Did you check the battery terminals for corrosion? A bad connection can cause low voltage readings and mess with the sensor.