How A Car Diagnostics Test Keep Your Car Running Smoothly?

You’re cruising along, tunes blasting, enjoying a smooth ride. When suddenly a warning light pops up on your dash. A tiny symbol that can turn your chill drive into a stressful one.

What does it mean? Will it cost a fortune? Can you keep driving? Or is your car about to stop down? These questions are enough to make any driver’s heart sink.

At Schon Automotive, we understand that feeling all too well. And we know the solution too. Yup, a car diagnostics test that can detect problems on time & bring you peace of mind.

Let’s explore what is a diagnostic exam, how it works, and how much it really costs.

What Is a Diagnostics Test?

A car diagnostics test is like a routine test done by the vehicle’s doctor. It checks your vehicle’s “vital signs” to spot problems early.

Modern cars are basically computers on wheels. Their onboard ECUs & sensors control everything from engine timing to air conditioning. They monitor your car’s performance and log any irregularities as “trouble codes”. i.e. Your car’s sign language.

A diagnostic auto test translates those trouble codes into plain English. It helps us pinpoint exactly what’s going wrong, whether it’s a minor glitch or a major mechanical issue. Saving the time spent in guessing or pulling components apart (as done in past).

How the Car Diagnostics Process Works

Here’s how it all goes down when you bring your car for a vehicle diagnostic test.

Step 1: Plug In the Scan Tool

We start by connecting a specialised scanner (called an OBD-II scanner) to your car’s computer port. This port can be under the dashboard or near the driver’s seat. The scanner monitors the working of car’s important components.

Step 2: Read the Trouble Codes

Once connected, the scanner pulls up a list of error codes that your vehicle is saved up. Each code is linked to a specific system. E.g. fuel injection, engine temperature, or transmission shifting. These codes are our clues that where any problem is lying.

Step 3: Find the Cause of Problem

But codes are only part of the story. They pinpoint where the problem is, but we still have to find out the exact cause. Our skilled mechanics analyse live data while your car runs. E.g.

• Fuel trim
• Airflow
• Engine load

It helps us see what’s really happening inside engine in real time.

Step 4: Visual and Physical Checks

To determine the cause of problem in a specific component, we check under the bonnet. Like frayed wires, corroded connectors, or damaged hoses. Sometimes it’s something simple, like a loose connector causing a misfire code.

Step 5: Road Test (if needed)

If we suspect an issue that only shows up while driving, we’ll take your car out for a test drive. It will help us recreate the problem and confirm the diagnosis.

Step 6: Repairs

Once the exact cause is found, it is communicated to the customer. With their consent, necessary repairs or replacements are made to clear out the issue.

Step 7: Recheck the Codes

Once we’ve found and fixed the issue, we’ll clear the error codes. The scanning tool is connected again to make sure that code is not showing now. If the same code reappears, we’ll find out if another fault is causing it that’s still undiagnosed.

How Long Does a Car Diagnostics Test Take?

Most basic car diagnostics tests can be wrapped up in about 60-90 minutes. However, some tests take longer, especially if:

• The problem is intermittent (it doesn’t happen all the time).
• There’s a need to test different systems in different conditions (like cold start, warm start, high load).
• Your car has multiple issues that need checking one by one.

E.g. a diagnostics test car can take longer if you hear a weird noise while shifting gears. As it will need inspection while driving to find out the root cause. And trust us. It’s better to spend an extra 15 minutes than missing a crucial problem leading to bigger headaches.

What Components Are Checked in a Car Diagnostic Test?

A car diagnostics test covers all the major systems required for normal functioning in your car. It includes:

• Engine Auto Systems
• Transmission Health
• Braking System (ABS)
• Emission and Exhaust Systems
• Electrical and Battery Health
• Sensors
• Fuel injection system
• Throttle
• Ignition
• Air conditioning
• Airbags and safety system

Diagnostics Trouble Code (DTC): How are They Read?

There are over 200 possible trouble codes, & each one tells a story. The trouble code has one alphabet in the beginning, that tells about the component in which fault is present. Common components include:

• Power (P): There is some fault in the engine components, transmission or drivetrain parts.
• Body (B): The problem is inside inside the passenger compartment. E.g. airbags, air conditioning, passenger comfort and safety, and driver assistance.
• Chassis (C): It refers to the malfunctions in mechanical systems, like suspension, braking or steering.
• Unspecified (U): There can be any issue in the wiring or the vehicle integration systems.

The rest of alphabets & numbers explain the type of problem further. E.g. if the code is PO550, it tells us that problem is in power steering pressure sensor. That’s how this test makes easier for the mechanics.

Advantages of a Car Diagnostics Test

Still wondering why a car diagnostics test is worth it? Let’s explain it in detail.

In short, it helps you stay safe, save money, and enjoy the ride, without the worry.

Busting the Myth: How Much Can the Test Reveal?

When talking about what a diagnostic scan can reveal, it’s also important to know what it can’t. There is a common myth that states that this test explains the issue in detail. While some even think that it can also help in repairs.

Now, let’s bust these myths once & for all.

The DTC shown in the scan only explains that “There is some problem in xyz component”. It doesn’t tell anything about which factor is causing it & whether it can be solved with a minor repair or need a replacement. These things are figured out by the mechanics themselves.

How Much Does a Car Diagnostics Test Cost in Australia?

We know money matters. So, let’s talk about in a clear way. So, you won’t have to face any surprises at the mechanic shop.

However, keep in mind that these are just estimates and the actual price can vary depending upon:

• Your vehicle Make & model
• Complexity of issues
• Your mechanic’s quality of services
• Your location

Always get quotes from multiple places to make sure you’re getting the best value for your money.

How Often Should You Get a Car Diagnostic Test?

The obvious case for auto diagnostic checks is when your car’s dashboard light gets on. But it’s not just for when something’s wrong. They’re part of smart car care, so:

• Yearly or After Six Months: Depends on how much you drive your car.
• Before Road Trips: Check for hidden issues before long drives.
• Changes in Performance: If your car starts acting differently, it’s worth investigating.

Remember that regular check-ups keep things in order and prevent major work later.

Is your vehicle due for a check car diagnostic?

Book Your Diagnostics Test at Schon Automotive

Don’t let those dashboard lights stress you out. Schon Automotive can save you with fast, honest, and expert diagnostics. We offer you:

• Advanced Tools: We use the latest scan tools and data testers for precise results.
• Expert Technicians: Our team has decades of experience in the auto industry.
• Fast & Honest Service: We value your time and your trust.
• All Cars & Models: From zippy hatchbacks to luxury SUVs, bring any car to us.
• No Hidden Surprises: We believe in clear pricing and honest advice.

We’ll find out what’s really going on and get you back on the road with a smile.

Book Your Car Diagnostic Test Now

And keep your car running like new!