At least some basic electrical theory, or the laws that govern electronics, is explained here - Collin Cunningham from Make magazine explains Ohm's Law.

Good luck.

Zach

If I were you, I'd go to a local community college where they teach basic electricity. You need to know volts, amps, ohms, how they are measured, and how they relate to each other. A lot of students thought very little of basic algebra and physics in school. But, when they get older and see how much a professional mechanic costs, they suddenly have an interest in basic physics.

Here is a link that I saved concerning the installment of a low coolant sensor:

http://www.brickboard.com/RWD/volvo/1144791/220/240/260/280/low_coolant_sensor_light_tutorial_super_long_post.html

Post back with questions you might have. I personally think the low coolant sensor is one of the most important upgrades you can add to a brick. All six of the Volvos I maintain for the family are equipped with one.

I too think of myself as being electrically challenged. I have learned a lot about electrons and their flow by simply reading posts and replys right here on the Brickboard. A willingness to learn goes a long way in acquiring an education.

Randy