The strangest thing happened to me yesterday...

My ABS, 4-Low, and Slip-indicator came on! I was taking care of some business for about three hours, so I decided to pull the 10A MB-ECU fuse out to try and master RESET the ecu. Everything seemed fine; most of the way home. But, before I could reach my town, about 10 miles, they came back on; I must have jinxed myself when I wrote the subject up a few days ago, lol!

So I decided to pull the NEG battery cable off the battery and leave it off til morning... which would give it plenty of time to RESET! Today I went out to the truck, expecting "ALL-TO-BE-WELL" since the truck has only 22,400 miles on it, and it's never had any work done involving the spindles, the shocks, or the upper or LCA's!

To my surprise, those darn IC icons came back on! I brought out my tech-stream cable & laptop, but... "NO COMMUNICATION!" Okay... So now I know that the MB-ECU has lost it's power source. I got out my "Field-Piece" multi-meter and checked the 10A ECU fuse; connected the NEG to the battery and shoved the POS lead onto the fuse (line-side & load-side), and it had power on both sides!

I did the same thing to the short-pin, and it was good! Now I was thinking... I'm good at the short-pin and the 10A ecu fuse... hummmm(?)! I know it's not getting fed, but why...? Then it hit me! Even though I've got power on the top of the short-pin and the 10A fuse, it doesn't mean there's power down in the contacts! I pulled the 10A fuse out, and replaced it with one of the spares in the main relay/fusebox, and... you'll never guess... The IC icons all went out!

Now I did check the fuse for continuity with the ohm meter, and it checked good, so that was that! But it didn't occur to me that the blades may be dirty! That's the reason I'm posting this. You may have a similar problem where the fuses are good but the ecu's aren't getting power fed! try a spare fuse, any size 10 or more (just for testing). I think I'll get some electrical contact cleaner to have on hand, or some WD-40 to displace moisture cuz I think that's what's going on!

rig, cheers!