PWR Door locks short

I went out to my 2010 TRD sport @WD yesterday after work and when I went to turn the key there was nothing. Not even clicking. I tried to jump it to no avail, swithced out the battery (We have spares at work) and that didnt work, put a fluke on it and it had 11.74V. Once you turned on the key to ACC it went to <4V. We started pulling fuses to find the draw and the PWR door locks fuse was the culprit. Although it was not blown. Any one have this problem or Ideas before I have to take her to the stealership?

(I will be checking the grommet/door at lunch)

Thanks.

 

I would look more in the direction of a sticking door lock switch. That would provide enough resistance to not blow the fuse yet it would drain the battery. A shorted wire to ground would have a low enough resistance to blow the fuse.

 

Whats the best way to sniff that out?

 

If you have a Multimeter and know how to use it, you would pop out the switch panels ( I would start at the drivers door as it is probably used more than the others). Then unplug it from the wiring harness then check across the contacts ( three pins ) of the switch ( two way, spring loaded to center ). All three should be open maximum resistance ( OL on a digital meter ) with nothing pressed. If you get any readings other than OL or Open between the three pins then you have the defective switch.