GM ignition key readers

[Frederic Breitwieser]

The GM ignition key sensor thingy is still a inset resistor, though the
range varies somewhat randomly.  The ECM is programmed to expect a certain
resistance, then allow the car to start if this criteria is met.

Probably nothing more than a wheatstone bridge :)

Frederic Breitwieser
Homebrew Automotive Mailing List
Bridgeport, CT 06606
http://www.geocities.com/MotorCity/Downs/4605/index.html
1989 AG Hummer 4-Door
1993 Supercharged Lincoln Continental
2000 Mid-Engine Sports Car <smile>

Seeking Info on: GM Tubular Upper and Lower A-Arms





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