Back to all

On Board Diagnostics for Wyoming Motorists

June 21, 2020

Some Wyoming vehicle owners wonder why Tuffy Wyoming and other Wyoming auto repair shops charge a fee for vehicle diagnostics.

Receiving a diagnostic charge at Tuffy Wyoming for a tricky automotive problem shouldn't be a surprise. In the Wyoming area, automotive diagnostics can cover quite a range. If you hear a noise in your vehicle brakes when you slow down in rush-hour traffic on a busy Michigan road, you pull off at the next off-ramp and take a quick visual check. That is usually enough to know what needs to be done. If you're having an intermittent problem with your vehicle engine, however, a Tuffy Wyoming diagnosis may be much more involved.

Much of the Wyoming driver's confusion comes when the problem involves the Check Engine light. The Check Engine light comes on when the engine management computer has sensed a problem.

There's a common misconception among Michigan drivers that the trouble code tells the Tuffy Wyoming technician exactly what's wrong. They wonder why there is a diagnostic charge because the scanner quickly gave the diagnosis.

In reality, it is not that easy and straightforward. The computer monitors many sensors throughout the vehicle. When one of these sensors has a reading that's out of parameters, the computer will record a trouble code and turn on the Check Engine light.

The vehicle computer's trouble code just tells the Tuffy Wyoming technician what engine parameter is out of range, not what's causing it. The technician needs to determine the underlying problem that's causing the malfunction.

There are many problems that could cause a troublesome sensor reading for Tuffy Wyoming customers. The service advisor makes a list of the most likely causes and begins tracking down the source of the problem. This takes time.

Wyoming service centers subscribe to databases that document possible causes for all the possible trouble codes. The databases outline procedures for confirming a diagnosis and provide the documented repair. These  databases are specific to each vehicle and engine combination.

Some diagnoses are quick and easy. Others are more involved, time-consuming and difficult. Of course Tuffy Wyoming wants to figure out what's wrong with your vehicle and get you back on the road as quickly as possible.

Tuffy Wyoming
4315 Clyde Park Ave. SW
Wyoming, Michigan 49509
616.534.8643

More articles from Tuffy Wyoming

Don't Start with That (Bad Starter Motor)

March 1, 2026

We've all heard that expression, "That's a non starter." When it comes to your vehicle, that's not music to a driver's ears. That sickening sound when you start the ignition and instead of hearing the engine crank, you hear it slowly turn over and your dash lights go dim. There can be many reaso... More

No Charge (Why Won?t My Battery Hold a Charge?)

February 22, 2026

When your vehicles battery is dead, it leaves you with that horrible, helpless feeling. A dead battery means it wont hold a charge, and there are several reasons it wont. One is age. Batteries have chemical and electrical systems in them that create power, and as time goes by, they wont work we... More

10 Things That Are Lowering Your Fuel Economy

February 15, 2026

Regardless of whatever current gas prices may be, if you could use less gas, wouldnt you? Well, here are 10 things that are robbing you of better fuel economy that you can change for the better: Not enough air in your tires. Underinflated tires have a smaller rolling diameter and more res... More