Wire Harness, Cable & Electromechanical Assembly worked example

Electrical Test Yield at 99% target electrical test pass rate: a worked example

This scenario runs the electrical test yield calculation on the strong side: 99% target electrical test pass rate, with every other input held at its documented default. Use it when electrical test yield in wire harness, cable and electromechanical assembly needs a clean rate and gap-to-target you can put on a tier board.

The inputs for this scenario

  • Harnesses passing electrical test: 8 count (unchanged)
  • Harnesses electrically tested: 250 count (unchanged)
  • Target electrical test pass rate: 99 % (raised for this scenario; the documented default is 95)

Working through the calculation

  • Applying the documented formula (Electrical test yield rate = electrical test yield count ÷ total electrical test yield population × 100) to the inputs above produces each figure below.
  • At this operating point the engine returns 3.2 % for electrical test yield rate, the number this scenario is built around.
  • At this operating point the engine returns 95.8 points for electrical test yield gap to target.
  • At this operating point the engine returns 8 count for electrical test yield count.
  • At this operating point the engine returns 250 count for total electrical test yield population.

How this compares with the baseline

  • Against the tool's baseline example, where target electrical test pass rate sits at 95% and the headline result is 3.2 %, this scenario lands almost exactly on the baseline at 3.2 %.
  • Use it at the end of a test shift, per work order, or per fixture to quantify how many harnesses cleared electrical test on the first try. Treat this as a target state: the delta against the baseline quantifies what the improvement is worth before you commit to chasing it.

Results at a glance

  • Electrical test yield rate: 3.2 % (headline result)
  • Electrical test yield gap to target: 95.8 points
  • Electrical test yield count: 8 count
  • Total electrical test yield population: 250 count

Run it with your numbers

  • Every input above is editable in the live Electrical Test Yield calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.