A vehicle specification database provides the reference values, adjustment information and identification structure used to compare measured alignment geometry with the intended vehicle configuration.
Correct vehicle specifications identification comes before specification selection.
Year, Make, Model, Trim, chassis, suspension and region can change the target specification.
Ride height may determine which specification applies.
A specification is a reference—not a substitute for diagnosis.
Choosing the correct vehicle record
Similar vehicle names can cover different platforms, wheelbases, suspension packages or regional configurations. The technician should verify model year, body or chassis code, drivetrain, axle configuration and any required ride-height condition. VIN assistance can reduce search time, but the returned record still needs confirmation.
Understanding tolerances and adjustment data
The database may provide preferred values, allowable ranges, adjustment methods, special weights, fuel or loading conditions and ride-height procedures. A green reading means the value is within the selected reference range; it does not prove that the correct record was chosen or that the vehicle has no mechanical problem.
Managing updates and local records
New models and revised specifications require controlled updates. Workshops should know the database region, update method and access rights. Custom records can be useful for motorsport or modified vehicles, but they should be clearly labeled and separated from approved production specifications.
Always confirm the vehicle configuration. Fast search is helpful; correct identification is essential.
Diagnostic reference
| Finding | Possible meaning | Next check |
|---|---|---|
| No exact model found | Different regional naming or database version | Search by chassis and verify update status |
| Ride-height prompt appears | Specification changes by measured trim height | Measure using the stated points and conditions |
| Vehicle is green but pulls | Specification selection or non-alignment cause | Verify record, tires, brakes and road-crown influence |
Workshop procedure
- Identify the vehicle from physical labels and repair information.
- Confirm model year, chassis, drivetrain and suspension option.
- Select the correct regional database.
- Complete ride-height or loading steps when required.
- Review adjustment notes before measuring.
- Record the selected specification on the final report.
Frequently asked questions
Does VIN decoding always select the exact alignment specification?
Not always. VIN information may identify the platform but not every suspension, ride-height or regional detail.
Can a workshop create its own specifications?
Many systems allow custom data. Use clear naming, authorization and documentation so custom targets are not mistaken for production specifications.
Why are database updates protected?
Specifications are controlled technical data and updates may be tied to licensed software, customer accounts or regional distribution support.
Technical reference · Published 17 July 2026 · Review product documentation before service.