3D wheel aligner - This auto diagnostic tool prevents accidents and allows more efficient use of tires and fuel. Most car repair shops have one of these because they help in saving a lot of any client's money. This auto electric repair tool consists of 3D cameras that track a vehicle's wheel movement and positioning from any height. Some functions like rolling compensation can be done without having to lift the car off the ground meaning that readings and subsequent adjustments are done in a very short time. A 3D wheel aligner has quite a number of components built into it, some of which include: Drive on camera aid, VIN scanner, Steering angle sensor, Universal wheel clamps etc.
If your vehicle is showing symptoms such as dim lighting, "dragging" during engine starts, or frequent dead batteries, then the charging system may be at fault. Although it may seem obvious, the first item to test is the battery itself. A defective battery in an otherwise healthy electrical system can cause any of the above mentioned symptoms. Testing the battery is a simple procedure, and can performed quickly by most auto parts stores, repair shops, dealers, and even some large department stores.
With other electrically powered features, the cause (and the fix) may not be so simple. Because of that, if any electric accessory stops working it's a good idea to first check whether a fuse that protects the circuit it's on has blown. The owners manual should show where a fuse for a particular feature is located (usually in a side panel below the dashboard near the driver's seat or under the hood). If you're handy with a multimeter that measures voltage, resistance and other things, you may be able to diagnose some of your own electrical problems. However, because they can be difficult for professionals to find and fix, they might be even harder for amateur technicians to solve.
The charging system will normally consist of two major components: An Alternator which actually supplies the necessary electrical current in order to charge the battery, and a Voltage Regulator. The latter insures that the system does not overcharge the battery, and that the correct system voltage is maintained. Most vehicles produced within the last 20-30 years use a voltage regulator which is an integral part of the alternator itself. This article assumes that your vehicle uses this type of alternator.