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96trans am
10-19-2005, 08:32 PM
Alright, I took my 99gagt to autozone today to get scanned and p1651 popped up, it said there were to problems. something input and output, can someone let me know what this is, I think the speed sensor just went out also, but dont know, thought that why the light came on, but not sure. Any help would be greatly appreciated.

Mike Jung
10-19-2005, 08:41 PM
Code P1651 = Fan 1 Relay Control Circuit

96trans am
10-19-2005, 08:44 PM
how do i fix that, thank for the quick reply.

96trans am
11-03-2005, 07:42 PM
does anyone know how to fix this????

nascarnate326
11-03-2005, 07:47 PM
If settings 1 and 2 on your fan dont work I think its as fuse or something thats on the firewall. Im prolly wrong though.

Mike Jung
11-03-2005, 07:53 PM
If settings 1 and 2 on your fan dont work I think its as fuse or something thats on the firewall. Im prolly wrong though.
:nono:

This is an OBD II trouble code.

So engine related.

Most likely Fan 1 relay circuit for the engine cooling.

I just looked up the code; but don't know how to fix it.