Where to buy a new 4wd Auto/Lock switch?

[St_Kitts_Terrano]

My 1997 Terrano seems to randomly choose what drive mode it wants to be in each time I turn it on. The indicator lights will either show 2 wheel drive (2 rear wheels green) or the orange 4wd light will be illuminated. The selector switch is always set to auto, and selecting a different mode only makes the "beep" sound but doesn't change anything. I'm rarely off road. I never engage 4wd Hi/Lo using the shifter. I had an almost dead battery a few weeks ago and learned a cool trick - I could turn the lights on & off and it would change the 4wd mode! New battery fixed that issue.

 

I only noticed this issue after changing the dial from "auto" to "lock" once when I was testing it offroad. My mechanic here says it's a bad switch. I am looking to buy a replacement online but can't seem to find it anywhere. I'm back in the US in about a week so I need to find it soon. Thanks!

[St_Kitts_Terrano]

I found one on eBay (duh). Actually I bought 2 just in case one was a dud.

[Bunchie]

If yoou don't already, get yerself a inexpensive digital multimeter. Easiest way to confirm voltage, shorts, continuity, etc.