Yea this is a common issue, Replaced this switch on both the Gen2's that I have owned.

Also If your feeling lucky you can try to take the switch apart and clean the contacts. I had limited success wit this method..

99 Gen 2.5, fixing blown head gasket
89 SWB- 33's, ARB Front locker, SR rear locker/axle, SR F brakes, winch, WST Offroad Armor all Around, 2.85 Aussie T-case Gears (SOLD)
Sold: (2) 95 SR's, 86 SWB, 90LWB, 91 LWB
-Can Change a timing belt in my sleep..