Today's car electrical systems are much more complicated than the electrical systems of days past. Electrical systems repairs on cars and trucks can be accomplished by the do it yourself type if you research thoroughly the procedures involved. The majority of cars and trucks on the road today run on 12 volt DC circuits. Electrical systems control everything from the ignition switch that starts your vehicle right down to the electric door locks. Repairing some of these vehicle components can be as simple as replacing a fuse or completing regular battery maintenance. Or you may need to replace a more difficult electrical component which will require potentially more time and skill. Whatever electrical systems repairs you care to undertake, we provide you with many references and tips to make your repairs that much easier.