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99 Suburban cigarette lighter fuse

Join Date: Jan 2007
Posts: 1

January 11th, 2007, 12:33 AM   #1  
99 Suburban cigarette lighter fuse

I have a 99 suburban that has recently started blowing fuses on the electrical circuit that powers the cigarette lighter. I tried replacing the fuse and it immediately blew. I disconnected the 3 cigarette lighter outlets and there is still a short somewhere. I found that the power door locks are also on this circuit. So I disconnected the two front door locks and the cargo lock switch. Still there is a short somewhere.

Does anyone know what other device is on this circuit? I looked in the lousy Chiltons service manual and they do not include the schematic on that circuit. I don't have an OEM manual, but I would think that there is a schematic that outlines what devices are on the circuit.

Please help......

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