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melinakaiser58

Corolla auxiliary battery alarm issue

I'm experiencing a strange issue with my 2017 Toyota Corolla diesel. It only has 27841 km on it. The additional battery alarm system seems defective. The error memory has stored an error, and the alarm system is non-functional. I suspect the battery is discharged due to age. Anyone else run into this?

Summary of the thread

A 2017 Toyota Corolla diesel with 27,841 km is experiencing a defective auxiliary battery alarm system, with an error stored in the memory and the alarm non-functional. The suspected cause is a discharged battery due to age. A system diagnosis confirmed the failure, and replacing the auxiliary battery resolved the issue, restoring the alarm system's functionality.

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4 comment(s)

stefanblade1

That sounds frustrating! I had a similar electrical issue with my 2019 Opel Insignia. The symptoms were different, but the root cause was also a battery issue. Was a system diagnosis performed, or have you checked the car battery voltage?

melinakaiser58 (community.author)

A system diagnosis was performed and confirmed the additional battery alarm system failure, which they attributed to the battery. What was the extent of the damage on your Opel?

stefanblade1

Ah, I see. With my Insignia, it ended up being a complete battery failure, triggering a cascade of warning lights and system malfunctions. Considering the diagnosis, and the age of your Corolla's battery, I would suggest visiting a workshop to replace the auxiliary battery.

melinakaiser58 (community.author)

Thanks for the insight! I took your advice and got the auxiliary battery replaced. The error is now gone, and the alarm system works again. The whole job cost me 330€. Appreciate the help!

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TOYOTA

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COROLLA