2000 740i Transmission/electrical problem

Yup. If the gearbox electronics loses volts - or they are low - it goes into limp home mode where only one forward gear works.

You might do better with an auto electrician.

Assuming you haven't really boiled it over then low battery is the most common cause of silly electronics.

I'd be very surprised if that took out the speedo.

1. When a lot of seemingly-unrelated things happen, it is often because they share the same ground connection and that ground is bad or noisy.
2. The electrical diagram for the car will help a lot. Look for where the transmission control system and the speedometer and tach stuff come together. What do they share in common?
3. Electrical work on a 740i is sheer torture and I would not wish it on my worst enemy.

--scott

snipped-for-privacy@panix.com (Scott Dorsey) wrote in news:fq40s0$7a9$ snipped-for-privacy@panix2.panix.com:

Thanks for the input

The problem turned out...ready for this? The ABS Module was bad.

$1,400 later it's now working fine.

Thanks for your help.

Jeff

What was the OBD II code?

And, I hope they gave flowers after bending you over like that.