GMC Schematics - Update again

[edgar t. kremer]

Incorrect URL in earlier epistle.

Please note the change to the Headlight Alarm schematic. Although I
have used this design for several years, this change provides a more
reliable function. The previous design would fail if the dash dimmer

switch were turned off.
http://meltingpot.fortunecity.com/greenside/321/page5.html

Thanks