Originally Posted by dwichman

Hi all,

Trying to diagnose 4wd issues and I can't for the life of me find the A.D.D position indicator switch to test it. My '01 has the electronic A.D.D. actuator and I've looked all over the place for the indicator switch.

I'm starting to believe I don't have one, is that possible with the electronic actuator?

The test procedure suggests to me that the switch is built into the actuator. It specifies to test continuity between the actuator terminals to "inspect the A.D.D. detection switch and limit switch":



I've also looked at a bunch of photos of used '01/'02 front diffs on ebay and could not find a position switch on any of them. The only wiring I see is for the 6-terminal actuator plug. In contrast when I look at '00 photos with the vacuum actuator the position switch is clearly seen.

So, can someone help me find it if I have one?

Thanks!