Back to all

The Auto Pro Troy Guide to Vehicle Diagnosis

October 13, 2019

Modern Troy vehicles have several computers on board that control all kinds of things like engine functions, transmission shifts, traction control, anti-lock brakes, stability control, emissions – and on some vehicles, even steering, braking and the throttle.

Think about that for a minute – things that used to be controlled by simple mechanical connections now have electronic controls that rely on computers, software and sensors. It's no wonder that when something goes wrong with their vehicle it can be pretty complicated for Troy drivers to track down the source of the problem.

To help your service advisor at Auto Pro Troy figure out what's wrong, your vehicle is equipped with on-board diagnostics. The Check Engine light comes on to tell you there's a problem and the engine management computer stores a trouble code. Your friendly and knowledgeable Auto Pro Troy technician connects a scan tool to your vehicle's diagnostic port and retrieves the trouble codes as well as other important data.

Trouble codes are like clues for the technician to follow as he diagnoses what's wrong with your vehicle. In a way, it's like going to your Troy doctor with a problem. She'll run some additional tests and gather the information she needs to make a diagnosis and form a treatment plan. How much a vehicle diagnosis costs at Auto Pro Troy in Troy depends on how much time it takes to sort out the symptoms and find the underlying problem.

Give us a call.

Auto Pro Troy
248-270-3002
512 East Maple Rd.
Troy, Michigan 48083

Need Service?

Request a Quote

More articles from Auto Pro Troy Auto Repair

Your Vehicle Is NOT Maintenance Free, Troy Car Owners

April 26, 2026

A generation ago, Troy drivers seemed to be more inclined to keep their vehicle's preventive maintenance on schedule. One reason for this may be that vehicles back then were a lot less reliable than they are today. Taking your vehicle in to your Troy shop every year or two for repairs seemed to... More

Automotive Tips from Auto Pro Troy: Making a Battery Last Longer

April 19, 2026

One thing all Troy drivers can do to extend the life of their battery is to keep it clean. A greasy, dirty battery holds in damaging heat. Same goes for removing corrosion from the terminals. Auto Pro Troy can help maintain your battery.Allowing your battery to be deeply depleted like from using... More

Why Alignment Matters (Vehicle Alignment Maintenance)

April 15, 2026

It's one of those things that can happen on a multi-day road adventure or a quick trip to the grocery store. You hit a pothole, go too fast over a speed bump, nail a curb. When it happens, you think, "I wonder if that was hard enough to do any damage?" But things seem ok and you continue on yo... More