What is a collision diagnostic scan and why does your vehicle need one?
A collision diagnostic scan is an electronic test that reads your vehicle's computer modules to identify hidden fault codes that do not trigger a dashboard warning light. These scans are necessary because modern vehicles rely heavily on Advanced Driver Assistance Systems (ADAS)—including automatic emergency braking, lane-keep assist, and blind-spot monitoring—which can be compromised in even a minor collision at a Westgate intersection.
When a vehicle is damaged, the physical impact can disrupt sensors, cameras, and wiring harnesses hidden behind bumpers and body panels. A pre-repair scan maps out these issues before work begins, while a post-repair scan confirms that all safety systems have been successfully recalibrated and are operating safely before you get back on the road.
Does Arizona auto insurance cover pre- and post-repair scans?
Yes, auto insurance policies generally cover diagnostic scans if they are required by the vehicle manufacturer to restore the car to its pre-accident safety condition, though insurers frequently attempt to dispute these charges. Because Liberty Collision Center is an independent shop and does not participate in insurance Direct Repair Programs (DRPs), we advocate directly for you rather than cutting corners to meet insurer-imposed cost targets.
- Insurers often claim scans are unnecessary if no warning lights are illuminated on the dashboard.
- Most vehicle manufacturers (OEMs) explicitly mandate pre- and post-repair scans for any collision repair.
- We document and submit OEM position statements directly to the insurer to prove the scan is required for a proper, safe repair.
- Policy terms and state laws vary, but you have the right to have your vehicle repaired to manufacturer specifications.
Why a dashboard warning light is not enough to prove your car is safe
You cannot rely on a dark dashboard to assume your vehicle is safe to drive after an accident. Many critical safety systems, including airbag deployment sensors, seatbelt pretensioners, and radar units, can store active fault codes without triggering a Check Engine or SRS light on your dash.
If a shop skips the diagnostic scan, they may return a vehicle to you with disabled safety features. If you are involved in another collision on the Loop 101 or Grand Avenue, those compromised safety systems might fail to deploy. Insisting on a diagnostic scan is not about fixing cosmetic issues; it is about protecting your life.
At Liberty Collision Center, we put your safety ahead of insurance company profits. If you have been in an accident in Glendale, Peoria, or the West Valley, call us at (623) 931-2110. We will handle your claim, advocate for proper OEM repairs, and perform the necessary diagnostic scans to ensure your vehicle is truly safe to drive.
How Liberty Collision Center handles the insurance dispute for you
We do not let insurance companies dictate the safety standards of your repair. When you bring your vehicle to our Glendale shop, we perform a complete pre-repair scan, print the diagnostic report showing the active faults, and attach it directly to our repair estimate.
Once repairs and ADAS calibrations are complete, we run a post-repair scan to prove all systems are clear and functioning. We present this digital evidence to the insurance company, making it incredibly difficult for them to deny the claim. Our service area covers Glendale, Peoria, Sun City, Surprise, El Mirage, Youngtown, and west Phoenix, providing local drivers with the independent protection they deserve.