Here is the power distribution (disregard the red box).

 

I would start with rear tail lights. Could be bad bulb shorting out to ground.


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Tail lights are not even plugged in. I checked the connectors for debris, and they are clear.

 

get a meter and check the +12vdc wire on one of your tail lights and see what your impedance (resistance) is to ground. It should either an open or above 1Kohm at a minimum. If you have a short, start tracing your wires back to the fuse box under the dash until you find the culprit.

 

Any luck with finding the problem? Do you have power steering and was that working with the blown fuse?

 

Mine has done the same thing. I have p/s and it doesn't work either. Any luck finding your short yet?

 

I was talking to a Friend yesterday about Motorcycles and some of the Shit customers do to them and finding shorts and such and he said they have some Bad Ass Electrical test gauges now that you touch the wire and it tells you whats up with each one. Pretty cool but spendy tool. Maybe one of your friends has a shop with one to help locate the problem.

 

Haven't seen nothing like that on the snap on truck. Will have to ask next week. I left my multimeter at work last night so I'm just trying to get lucky and find it today but no luck so far. Suppose to go ridding this weekend with a big group. I was climbing a hill last weekend when mine went out. No p/s and 32' tires was fun lol

 

I will ask about it.

 

What you are referring to is a TDR (Time Domain Reflectometer) it actually can tell you how far down the line there is a break or short in the wire. Not something you will typically find at your neighborhood tool store.

TDR Time Domain Reflectometer multifunctional cable Tester - Trianglecables.com

 

Have any idea what and where the communication conector is?

 

it is under the drivers side dash next to the fuse box. It is used by the dealer for diagnostics...

 

The one my friends use is the Hook. Ultimate power probe.

 

Thanks heavy, I'm off work the rest of the week, so hoping to find the short before Saturday.

 

Check the wiring for license plate light near the plate if you have one. Others have shorted from the heat generated back there off the exhaust.

 

I like the PowerProbe ECT2000 for short/broken wire duty......

Power Probe, Inc.

 

Found it!!!!!! 02 sensor wires fell on exhaust. I tried to butt connect the wires back and now have a check engine light one.

 

good deal! You will need to replace the O2 sensor and you will fix the CEL....

 

Found it. Front O2 sensor wire resting on the exhaust just like one of the other guys.

 

Glad you found it. My check engine light turned out to be air ride related. I just butt connected my 02 wires back together with new wire and it runs fine.

 

I had had the same exact problem and did find the short at the lighted license plate frame.