BODYSHOP DIAGNOSTICS
EXPERIENCE THE POWER OF THE LATEST SOFTWARE.

Modern collision repair is as much about electronics as it is about panels and paint. Today’s bodyshops are increasingly responsible for restoring vehicle systems that rely on sensors, control modules and networked body electronics.

As vehicle technology continues to evolve, accurate diagnostics play a critical role in verifying repairs, completing post-replacement procedures and ensuring safety systems operate as intended. From module configuration to system verification, the right diagnostic software supports consistent, compliant repairs.

Snap-on® Diagnostic Software helps bodyshops manage these requirements in-house, supporting modern repair workflows across multiple manufacturers — with confidence from vehicle check-in through to final handover, helping ensure vehicles are repaired right first time and comebacks are eliminated.

WHY DO BODYSHOPS
NEED DIAGNOSTICS?

Vehicle Complexity Is the New Normal

Modern vehicles are more complex than ever. Most cars from the last 5–10 years contain an increasing number of electronic systems and control modules — often more than 100 modules on a single vehicle. 

Vehicle technology is evolving rapidly, with changes introduced every few weeks rather than every few years. At the same time, ADAS features are now standard on many vehicles, meaning even minor collision repairs can affect safety systems. 

Repair and diagnostic procedures also vary significantly by manufacturer. The correct process on a Mazda will not be the same as on a Chevrolet or a Dodge. Diagnostics ensures the right procedure is followed, every time. 

Mandatory Pre- and Post-Scans

Since 2016, many vehicle manufacturers have mandated pre- and post-scans on vehicles involved in a collision. 

• A pre-scan documents the vehicle’s condition on arrival 
• A post-scan verifies that repairs have been completed correctly 

All Snap-on® diagnostic platforms can generate a comprehensive vehicle systems report, helping bodyshops meet manufacturer and insurer requirements. 

Reports include: 

• Date and time of the scan 
• Vehicle VIN and identification 
• Customization of workshop information 
• Color-coded system health overview 
• Detailed system categories, DTCs and readiness monitor status

Documentation and Cloud Sharing

Accurate documentation is essential, particularly where repairs affect safety or ADAS systems. 

Repairs involving sensors, cameras or modules often require recalibration, with evidence provided in the form of a calibration report. 

All pre- and post-scan reports are automatically uploaded to your secure Snap-on Cloud via AltusDrive, allowing you to share results with customers or insurance companies using a simple link. 

Reports can be accessed on any device with a web browser.

Relearns and Calibrations After Repair

After many body repairs, electronic procedures are required to restore full system functionality. These can include: 

• Re-zeroing occupant detection sensors 
  
• Recalibrating window motors 
  
• Re-aiming front-facing cameras 
  
• Recalibrating blind spot monitoring systems

Snap-on® Diagnostic Software supports these relearn and calibration procedures, helping ensure vehicles are returned fully functional, compliant and ready for the road.  

RESETS

Resets return learned or adaptive values back to factory specifications after a component has been replaced or serviced. They clear compensations that were applied for worn or failing parts.

A common example is automatic transmission shift adaptives. Over time, the transmission learns driving style and adjusts shift points. Performing a reset allows the system to begin learning again under normal operating conditions.

REFLASHING

Reflashing is used to write new software to the ECM, replacing the existing software or calibration with an updated OEM-approved version.

This is typically carried out to correct known issues, apply software improvements or install a blank replacement module.

Because reflashing alters the core operating software, it must be performed exactly as specified by the manufacturer using the correct equipment and procedures. Uses OEM files. Requires J2534 pass‑thru, Windows PC, internet, stable power

TRAINING
CONTENT

For a detailed, technician‑focused deep dive into resets, relearns, programming, and reflashing, watch Jason Gabrinas Snap‑on live training session After The Repair: Reflashing. 

This session breaks down terminology, explains when each procedure is required, and highlights best practices to avoid post‑repair issues and module damage.

KIA® NIRO
FRONT SEAT RELEARN

Snap‑on® diagnostic software includes a special function used to relearn the front seat on a 2024 Kia Niro.

This step must be performed every time the Body Sensor ECU or Seat Cushion Assembly (including the ECU) is replaced. The procedure must be performed with the seat unoccupied. Be sure to resolve the cause of the seat failure before proceeding.

Operational Steps:

• Select: service resets and relearns
• Scroll down and select: Replace/Relearn Seat
• Select: Runctional resets and calibrations
• Scroll down and select: Body Sensor Reset
• Follow the onscreen instructions
• Select: whether the seat has a heater or not
• The procedure is now complete

The seat relearn procedure is now complete—making this process faster and simpler than ever before.

ONLINE VEHICLE
COVERAGE GUIDE.