The complexity of computers and high tech components in cars, trucks and SUVs continue to evolve at a rapid pace. For example, did you know that newly manufactured autos contain more lines of computer code than what was used to navigate the first rocket to the moon? This amazing revelation may make you wonder if the computer components designed into new autos makes it more complicated for mechanics to pinpoint and repair problems in autos.
New cars, trucks and SUVs are designed and manufactured with a number of ECUs or electronic control units. Some auto makers cluster ECUs into a few control boxes while other designs have them spread out throughout a vehicle. ECUs manage things like the engine, transmission, cruise control, lighting, safety systems, instrumentation, climate control, brakes, audio system, windshield wipers, and more.
Don?t let the sound of this complexity concern you. These added ECUs actually make your car, truck or SUV smarter and more reliable because of an increase in communication. For example, while you auto is on, your ECUs do a quick check to see if all components they control are in proper functioning order. If not, they assess if there is a potential work around. If there is, they make it happen. If there isn?t, they light up one of the warning lights on your dash, and register a diagnostic trouble code. This gives you advanced notice of a problem, and assists your mechanic with a faster diagnosis.
More ECUs also equate to a reduction in the wiring in your auto. For example, older model vehicles were designed with 60 wires leading to the driver?s side door for control of the door locks, power windows, and power mirrors. 60 wires create 60 possible failures due to wire flexing and loss of voltage. Plus, this increases the amount of time your ASE certified mechanic needs to diagnose and repair an issue. Newer models replace these wires with one ECU communicating through a single or double wire to another ECU closer to the component you want to control.
While there are many benefits to multiple ECUs and minimized wiring in your car, truck or SUV, there is a possible drawback if you fancy yourself an amateur auto mechanic; ECUs and the systems they control require more sophisticated training and tools to diagnose, repair, test, and reset a problem.
Learn more about used car tips. Stop by American Auto Assurance?s site where you can find out all about auto maintenance tips, vehicle protection plans and what they can do for you.
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