Thanks, Jim. I'll replace the fuses in the base module. You are correct about the cracked line from the air pump. I replaced the pump a few years ago and I had trouble securing the (then) rubber hose over the fitting next to the oil filter housing. I saw that the hose had come off and, when I tried to push it back on later, I ended up cracking it. That would explain that code.

Regarding the DTC 19 on socket 19, I'm pretty sure it's reached the limits of adjustment.

My transmission was just rebuilt a few months ago and I had a new neutral safety switch (S16/3) installed at that time.

So, my hope is that a fuse is the only thing keeping my cruise control from working. The other possibility is an expensive one. Your Menu #24 is really informative.

Victor, thanks for the input. My engine idle speed dropped when I disconnected the canon plug and increased when I hooked it back up.

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1993 400E, 256,000 miles (totaled)
1994 E420, 200,000+ miles
1995 E420, 201,000 miles