Mechanic inspecting a used vehicle before purchase with diagnostic tools
Before You Buy

PRE-PURCHASE
DIAGNOSTIC EVALUATION

Buying a used vehicle? A quick scan isn't enough. We look beyond the dashboard — checking for hidden fault codes, cleared codes, readiness monitors, and electronic issues a casual inspection would miss.

Hidden code check Readiness monitors Buyer-focused report
What We Check

WHAT A REAL PRE-PURCHASE
EVALUATION CATCHES

Many sellers clear codes right before a sale. Readiness monitors can reveal that — and that's just the beginning. Here's what we look at before you hand over your money.

Hidden & Pending Codes

We check for stored, pending, and permanent codes — including issues that don't yet trigger a dashboard light.

Readiness Monitors

Monitors that aren't set can indicate a recent code clear — a red flag worth knowing about before purchase.

Module & Network Health

We confirm modules are communicating and look for signs of electronic or electrical trouble.

Live Data Review

Key sensor and fuel-trim data reviewed for signs of problems that don't set a code yet.

Recently-Cleared Evidence

We flag signs that codes were recently cleared, so you're not buying someone else's problem.

Straight Feedback

We tell you what we found in plain language — good, bad, or "walk away." No pressure either way.

Please note: A pre-purchase evaluation is focused on electronic and diagnostic condition. It is not a full mechanical inspection, and it cannot reveal every possible issue in a used vehicle. We give you our honest findings based on what the data shows.

Technician performing a pre-purchase diagnostic scan on a used vehicle
Why It Pays Off

THE SMARTEST MONEY YOU'LL SPEND ON A USED CAR

A 15-minute test drive and a basic scan will happily miss an intermittent electrical fault, a recently cleared engine code, or a module that's on its way out. Those are exactly the problems that become expensive repairs once the car is yours.

A pre-purchase evaluation gives you leverage — real information to negotiate with, or the clarity to walk away before you've committed.

Book An Evaluation
FAQ

PRE-PURCHASE QUESTIONS

Vehicle in a service bay at KardoTuned

BUYING SOON?
KNOW BEFORE YOU BUY.

Book an evaluation before you hand over your money. Send us the year, make, and model.