Care Tips

Do All Scan Tools Show Vehicle Mileage?

LucasAdams

September 13, 2024

Imagine this: you’re eyeing a used European car at a dealership in bustling Los Angeles. It looks pristine, practically new. But something feels off. The odometer reads a suspiciously low mileage. How can you be sure it’s accurate? This is where a scan tool comes into play, but do all scan tools show vehicle mileage?

Unraveling the Mileage Mystery: What Do Scan Tools Reveal?

The quest to uncover a car’s true mileage isn’t just about satisfying curiosity. It’s about making informed decisions, especially when it comes to used vehicles. Let’s break down why knowing a car’s real mileage is crucial:

A Mechanic’s Perspective: For seasoned mechanics, like John Miller from a Chicago auto repair shop, “Mileage is like a car’s fingerprint. It tells you how much wear and tear the engine, transmission, and other components have experienced.”
The Technical Angle: Every time a car travels a mile, its Engine Control Unit (ECU) records it. Scan tools, acting like digital detectives, can access this data.
Financial Implications: A car with tampered mileage could be a ticking time bomb. Hidden problems could surface later, costing you a fortune in repairs. Imagine buying a car advertised as having 30,000 miles, only to discover it’s actually closer to 100,000 miles!

So, Do All Scan Tools Hold the Key to Mileage Secrets?

The answer, unfortunately, isn’t a simple yes or no.

Types of Scan Tools and Their Mileage Prowess:

Basic OBD2 Scanners: These handy tools, while great for retrieving engine codes, often fall short when it comes to accessing mileage data stored in other modules.
Advanced Professional Scanners: Now, we’re talking. These high-end tools, like some Autel and Launch models, can communicate with multiple vehicle modules, often including the one housing mileage information. However, even among these, not all have this capability.

scan-tool-types

Factors Affecting Mileage Display:

Vehicle Make and Model: Some manufacturers make it easier to retrieve mileage data than others. For instance, German cars like BMWs and Mercedes-Benzes are known for storing mileage data in multiple modules, making it harder to tamper with.
Scan Tool Software: The software is key. Regular updates are essential for your scan tool to stay compatible with the latest vehicle models and access the most up-to-date data.

Beyond Mileage: Other Data Points to Consider

While mileage is a valuable piece of the puzzle, don’t rely on it solely.

Here’s what else to check when assessing a used car:

Vehicle History Reports: Services like Carfax or AutoCheck provide records of accidents, repairs, and previous owners.
Physical Inspection: Don’t underestimate the power of a thorough visual inspection. Look for signs of wear and tear that might not align with the stated mileage.

pre-purchase-inspection

What if I Suspect Mileage Tampering?

If you have reason to believe a car’s mileage has been tampered with, contact the authorities.

FAQs About Scan Tools and Mileage

Q: Can I use a scan tool to change the mileage on my car?

A: No. While some scan tools can access mileage data, they cannot alter it. Tampering with a vehicle’s odometer is illegal.

Q: My scan tool isn’t showing mileage. What should I do?

A: Ensure your scan tool is compatible with the specific make and model of the car. If it is, try updating the software. If you’re still facing issues, consult the user manual or contact the manufacturer.

Q: Are there any alternative ways to verify a car’s mileage?

A: Yes. Vehicle history reports and a pre-purchase inspection by a trusted mechanic can offer valuable insights.

Need Help Deciphering Your Scan Tool Readings?

We’re here to help! If you need assistance with your diagnostic tools or have any automotive questions, don’t hesitate to contact us on WhatsApp at +84767531508. Our team of experts is available 24/7 to guide you.