Before any repairs or modifications, technicians should perform a pre-repair scan of the vehicle’s advanced driver assistance systems. This scan reveals hidden faults, ensures accurate quotes and lays the groundwork for a successful calibration.
- Identify faults early. A diagnostic scan detects existing faults and diagnostic trouble codes (DTCs) in ADAS components.
- Document the baseline. Recording scan results provides a snapshot of the system’s health before work begins.
- Determine calibration requirements. Some repairs, such as windscreen replacement or suspension work, will require recalibration; pre-scans help you plan accordingly.
- Avoid liability. Having a record of pre-existing faults protects technicians from being blamed for issues that weren’t caused by the repair.
- Save time and cost. Diagnosing faults upfront prevents surprises later, reducing the need to reopen panels or repeat work.
- Communicate with customers. Sharing scan reports helps customers understand why calibrations are needed and builds trust.
- Select the right equipment. Scan results inform whether static or dynamic calibration procedures are required, so you can prepare the correct tools.
- Follow the AAAA Code. The AAAA ADAS Industry Code of Conduct emphasises pre-repair scanning as a critical safety step.
A thorough pre-repair scan is the foundation of any ADAS repair. It ensures transparency, accuracy and safety. For more scanning and calibration tips, explore the Calibration Club.
Hiran Alwis is an automotive lecturer and ADAS specialist with over 15 years of experience in diagnostics, advanced safety systems, and technical training. He founded ADAS Project to help everyday drivers and workshop technicians understand and safely use advanced driver assistance systems.