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Onboard Diagnostic Tools Specification Example for Courier Fleets: Upgraded Version

Source:Forestry Tractor Tires / Time:2026-09-18

Onboard Diagnostic Tools Specification Example for Courier Fleets: Upgraded Version

This is a worked specification for onboard diagnostic tools in a upgraded version programme. It is the document we would send a buyer who asks what exactly they are getting: the material, the dimensions that are actually controlled, the finish, and the checks that happen before anything is packed.

The upgraded version version exists because the duty cycle on courier fleets is not the same as on a showroom vehicle. Where the two are specified identically, something fails later — usually a supplier who changed material without saying so.

Onboard Diagnostic Tools

Example specification

ItemOnboard Diagnostic Tools
ApplicationCourier Fleets
VersionUpgraded Version
Base materialNeoprene
Controlled dimensions4 key dimensions, recorded per lot
Tolerance band±0.2 mm
Finishzinc plated
MOQ3,000 pieces per specification
Sampling14 working days, 5 days per revision
ComplianceIATF 16949

How the example is built up

  1. Start from the duty cycle, not from the catalogue photograph.
  2. Fix the base material in writing — Neoprene, in this example.
  3. List the dimensions that are actually controlled and the tolerance on each.
  4. Name the finish and what it has to survive.
  5. State the inspection level and who pays when a lot fails.

Onboard Diagnostic Tools example

Processes involved

  • gravity casting
  • die casting
  • sintering
  • assembly line testing
  • heat treatment
  • electroplating

Where this example applies

Programmes that run upgraded version most often specify this build for courier fleets. Related applications include construction equipment, dealership service, delivery vans, aftermarket retail, racing teams.

Checks before packing

  • Dimensional report against the approved drawing.
  • AQL 1.5 sampling on the finished lot.
  • Finish inspection under agreed lighting.
  • Carton drop test on the first lot of a new packing specification.

Questions buyers ask

Can the specification be held on file?

Yes. Once approved, the specification is recorded against your part number so a reorder reproduces the IATF 16949-compliant build instead of a fresh interpretation.

Can you match an existing sample?

Send a sample and we will reverse-engineer the specification, then produce a counter sample for approval before any bulk starts.

How is packing specified?

Individual packing, inner box quantity and carton marking are confirmed at quotation stage so the cartons arrive ready for your warehouse.

What happens if a lot fails inspection?

The lot is re-inspected against the golden sample, and replacement pieces ship on the next available booking at our cost.

Send the specification you are working to and we will confirm what we can match, what we would change and why.

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