1999 LX470 AGM battery diode voltage boost nets battery error light? (1 Viewer)

Joined
Jul 15, 2019
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Bay Area, CA
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www.wagan.com
We recently swapped the starter battery with an Interstate AGM and swapped the 7.5A fuse to the GM diode. After doing that on our 1999 LX470, the battery warning light stays on. The voltage readouts are within spec of AGM batteries (14.3V on average). Is this a common issue?
 
Joined
Mar 4, 2012
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736
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South OC
The diode is inserted properly with the arrow following the current flow?
 

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