Re: [MBZ] 300D cruise control troubleshooting/Brake Lamp wattage

2006-05-08 Thread JFreezn
In a message dated 5/7/2006 7:37:14 P.M. US Mountain Standard Time, [EMAIL PROTECTED] writes: All of the electronic control (vs the vacuum type used earlier) ground through the stop lamp bulbs. Sounds kinda nuts, but what happens is that when the lamps light up, there is suddenly 12V on

Re: [MBZ] 300D cruise control troubleshooting/Brake Lamp wattage

2006-05-08 Thread Jim Cathey
All of the electronic control (vs the vacuum type used earlier) ground through the stop lamp bulbs. Sounds kinda nuts, but what happens is The vacuum ones (VDO at least, can't speak for the Philco/Ford units of 1975) also use the brake lamps as a virtual ground. I have heard, both pro and