So I was driving today. It was raining fairly hard and was really humid out (prolly close to 100%) anyways all of a sudden my horn started going off without me touching the button and my wipers started spraying fluid all by themselves and wouldn't quit. I pulled over and turned the truck off which made the wipers quit but the horn would not shut off so I just cut the power wire to it. Turned the truck back on and everything seemed back to normal... Any idea what happened? Was kinda scary considering it was already raining and the wiper fluid made it nearly impossible to see when I was going 45+...
2004 Ford Ranger 3.0 4x2
3"BL- 3" Doetsch Spindles - 2" Coil spacers - Blocks & Shackles
8.8 Explorer Axle w/ LSD, 4.88s
35x12.5R15 BF Goodrich Mud Terrain KM2 on 15x10 Cragar D windows
2015 Jeep Wrangler Sahara Unlimited
Completely stock... for now
I had the same problem on my 05. I finally tracked it to the SJB and took the thing out of the pickup and took it apart.
There were 'salts' from water condensation all over the circuit board so I took a toothbrush to it after it had dried and cleaned it really well, then reinstalled everything under a plastic wrap for store bought water. If the salts get wet they will conduct electricity. That plastic is pretty tough and is very flexible.
I didn`t want to make it water tight because any condensation would not escape if it found its way into the SJB container say just after the A/C had been running. Anyway, I had no more problems. There is no way to take apart the circuit boards so you have to get a skinny bottle brush and gently go after the insides of the boards with that. Take the plastic and lay it on the back with enough left over to drape down the front. Looks like the SJB is pretty tough but I'm sure there is a limit on water.