Guys, I was running a small an aircompressor in one of my 2 cig lighters. it pop what I hoped was a fuse..... been hunting for it, can't find it. I read somewhere one of the 2 is not fused so I have been dealing with it. Went to trouble shoot a code today with my Cortex Supertuner and guess what, no power on the the OBDII, so now I have to figure it out. Anyone out there have schematics or an idea where that might have blown.....? All fuses in dash seem OK.

Scott

 

did you check the one under the hood? i believe there is a fuse for one of the cig lighters in there. but i think you loose radio and everything when that one goes.

 

Let me back up here a tiny bit, When the circuit blew, nothing else was affected..... in other words the radio and everything else that might be related to that circuit was still working fine. So I went hunting for a standalone fuse for just the one cig lighter. I also read on a thread somewhere that one of the lighters was not fused and if you blew that one, the connection was fried somewhere along the path........ I did look under the hood in the other box, but I was focused on something that would be just for the one lighter.....

But now, several months later I have a more serious issue and I discover that there is no power on the OBDII port..... so now I have to track this issue down.

So if anyone out there has access to the schematics, and you can look to see if the power for the ODBII goes to a specific fuse or breaker, that would be very helpful.

Scott

 

look under the hood. On my 02 I blew cig fuse and lost ODB port power.

 

it should be the cig lighter fuse

 

Cigarette lighter fuse 15 Amp and Aux power 1 fuse 20 amp According to the diagram I have the data connector recieves power from the cig ltr fuse but the other outlets or protected by the aux pwr 1 fuse. hope that helps .

 

Your correct, it's there under the hood...... not sure how I missed that...??? Maybe the thread I read where there wasn't a fuse for one of them influenced me

I just spent Saturday replacing the water pump on that Duramax (tough job BTW), and I can't find a blow fuse.... just shoot me!