luisemiller3
Hiace Battery Sensor Issue
Summary of the thread
A 2004 Toyota Hiace with a gasoline engine experienced a heavily discharged battery, weak lights, and an error message on the speedometer, leading to suspicion of a defective battery sensor. Initial checks ruled out terminal corrosion and parasitic battery drain. A workshop diagnostic confirmed the faulty battery sensor, and replacing it resolved the issues.
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4 comment(s)
luisemiller3 (community.author)
Terminals are clean and tight. I did a quick check for parasitic draw and didn't find anything obvious, but I'll re-check more thoroughly. Unfortunately I don't have the error code at hand, but I did check the error memory.
fionakeller1
Okay. A faulty battery sensor is plausible, considering the symptoms and your checks. Given the intermittent nature and error codes, it's worth getting a proper diagnostic scan at a workshop. Could be an electrical system issue.
luisemiller3 (community.author)
Turns out it was the battery sensor, as suspected. Workshop confirmed it, and the repair cost 315€. Replacing the sensor resolved all the symptoms.
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TOYOTA
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HIACE
fionakeller1
I had similar issues with my Hiace. Have you checked the battery terminals for corrosion or loose connections? A parasitic battery drain could also cause this if the terminals are fine. You mentioned an error in memory - can you pull the exact code?