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Trouble code 18010 Power supply (B+) Terminal 30 - Low voltage

I recently noticed the check engine light was lit in my car. So I bought an engine scanner to see what the problem was (I thought it was the MAF). But the scanner read: 18010. In the the manual, that came with engine scanner ( I don't have my car's owner manual), the definition given for this code was: Power supply (B+) Terminal 30 - Low voltage. But that doesn't tell me much. Could anybody out there, please let me know what this means. After scanning the engine, I erased/reset the problem code and the check engine light is now off, even after a good ride.

Also, my car is a 99 A4 2.8

Thanks any thoughts would be great!!

I'd like to fix this myself if possible.

Reply to
profits23
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The code 18010 has the following possible causes :

a) Weak battery b) Alternator fault c) Cables disconnected from battery.

Have you disconnected the battery recently ? I'd personally ignore the problem unless the 'Check engine light' reappears. Then check the cables to the battery, the battery itself and then the alternator.

Richard

Reply to
Richard Goulding

Reply to
profits23

No problem. I hope it's solved.

Richard

Reply to
Richard Goulding

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