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Alan's Classic · 12-20-2010, 07:30 PM

A good friend of mine has a 2002 C3500 6.6L. He changed the engine batteries and now the security light on the dash stays on. Everything works fine. The light just stays on. Any suggestions. I've done some searching on here about this problem and really haven't found the solution. I've also checked on alldata.com.

I did see mention of a scanner. Is it a OBD2 scanner? If I need a scanner I have a Genesis OBD2 scanner at work.

It seems like it would be as easy as a simple reset. Thanks for any input.

12-20-2010, 07:30 PM	#1
Alan's Classic 1 thing at a time is progress. Join Date: Jun 2007 Location: Ball Ground GA Posts: 5,511	Replaced engine batteries now "Security Light is on" A good friend of mine has a 2002 C3500 6.6L. He changed the engine batteries and now the security light on the dash stays on. Everything works fine. The light just stays on. Any suggestions. I've done some searching on here about this problem and really haven't found the solution. I've also checked on alldata.com. I did see mention of a scanner. Is it a OBD2 scanner? If I need a scanner I have a Genesis OBD2 scanner at work. It seems like it would be as easy as a simple reset. Thanks for any input. __________________ Alan Philippians 2:14-16 Alan's Classic Facebook page. North Georgia Group Project 1965 Vitamin C-10 1995 GMC Sierra K1500 The "Wrecker"