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Battery warning light flashing intermittently

  

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Topic starter

Hello Scotty,

 

I have a 2005 Toyota Avalon, auto transmission, 185,000 miles. When driving, the battery warning light flashes intermittently. Do you happen to know what might be causing this?

 

I replaced the alternator a couple of years ago with a remanufactured unit. I suspect this unit may be failing, but your input would be quite helpful.

 

FYI - Based on your recommendation, I ordered a

TOPDON AB101 Car Battery Tester

to check the charging system. Thanks for the tip.


2 Answers
2

Check all your  connections. 


1

Check voltage at the battery with the engine off and at idle.  With engine off, voltage should be about 12.75 volts, about 14.5 volts with engine idling.


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