On Thu, 30 Mar 2006 20:19:59 -0500, "RCE" wrote:

As you drive around, a sensor on each wheel records the wheel rotation and
compares it to the other three wheels. Each sensor compares to the other
sensors, in other words. If one tire starts going flat, it's number of
rotations per unit distance will be different than the other three wheels.
If this difference goes out of a predetermined window (allows for turns,
etc.) the flat tire alarm will notify the driver.

I had to read this three times in the manual before I'd believe it. German
engineers have a reputation for getting carried away, but this is
ridiculous.

How did we ever get by without micro processors ?