Code p1910, stumped

[Harley Strokin']

Ok so truck started acting weird a few months ago, the reverse light relay started clicking driving down the road making the reverse lights come on and off. Replaced relay and no change. Pulled a p1910 off of my insight saying reverse lamp circuit low. Had a friend hook Ae up to it and pulled an couple codes for the x-fer case, can't remember the specific codes. The 4x4 has failed to work a couple times but usually works great. Any thoughts or other tests I can do, pretty decent w/ a multimeter.

 

[Harley Strokin']

Bump, any ideas?

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[Lethalthreat7.3]

You might check your trailer accessory plug. I have had a similar issue with corrosion in the 4-way.

 

[caggr5]

Did you ever get this one solved? I have a 2008 F350 and while I don't have the relay clicking and lights coming on/off what I do have is no back up lights or park sensors. When I pull the codes I get P1910 ( reverse lamp control circuit open) and also two codes under what they call the 4x4 control module , p1876 and P1832 which relate to the transfer case and transmission transfer case respectively.

Since thus sounds almost the same as you issue I am curious what your solution was?

Any help is appreciated.