Tail light help

[8lug]

Hey guys, I have an intermittent tail light issue, appears to maybe be grounding? some times I have no brake, signal, tail, reverse, anything... sometimes a dim, fast, signal. Sometimes a dim hazard... then, sometimes no issues... there is no consistency. in fact, I gave up this morning and jumped in the truck, started it and they started to work, last night I had them working, jumped in, started the truck and they stopped working... does anyone know the color codes or pin outs for the blue PT2274 connector that plugs into the junction in the rear on the frame? I'd like to know if its a ground that's shorted or being powered...

http://catalog.autobarn.net/item.wws?sku=PT2274&itempk=3838306&mfr=ACDELCO GM ORIGINAL EQUIPMENT&weight=1


Thanks.

 

[8lug]

Bump

 

[8lug]

Bump

 

[2004LB7]

see if this helps

 

[8lug]

Yes Great... it worked for 10 days, then not for 20 mins on the highway, then not in my driveway this weekend now right works fine, left is bright but fast flashing... might pull the whole UBEC and check it over... had some body work done and the guys were less than stellar at hooking back up all the electrical components. Looks like that's the only place in the whole shooting match that both left and right are connected.