Fixing "service 4wd system" error on WK grand cherokee

After some deep water fun out at rattlesnake gulch, my WK started having "service 4wd system" messages show up. My suspicion was that the electrical confection for the acutator for NP245 t-case got wet during my river-fording fun...
The Jeep is a 2007 Grand Cherokee WK limited. It has a 2" lift, provided by bilstein 5100 struts on the front, and spacers on the rear. It has the quadra-drive II full-time 4wd system, and 31" (245/75/17) Falken Wildpeak AT3/W tires.
Details regarding the service 4wd system reset procedure I referenced in this video: www.jeepforum....