All,

As I put together my dash, I keep running into electrical gremlins.

The newest ones are that I am able to pull the arm back of the combination switch to the hi beam, but it will not stay on hi. the second issue is that the wipers will not turn on. I've switched out the combo switch apparatus thinking it was this cheap part, but the same result.

All of the fuses are intact, so I'm stuck. Any ideas where to go next to diagnose this? Should I look at the relays?

 

What year truck are you talking about? Each generation poses its own mysteries. Something I found with my 01 is that LEDs really screw things up.

 

Yeah, that might be helpful. It's a 1995 Dodge Ram 2500. I converted it from Auto to an NV4500. I've worked out most bugs except A/C, hi/lo, wipers, and headliner "info-center". I had to completely remove interior and dash down to just the harness. I suspect there may be fractured wires in places. I hate to take it apart again, but want to get this thing done!

 

Wiring. Fortunately 94-95s are still relatively basic technology wise. Easy to pinch something when you have it that torn apart. I hope you have the factory service manual.