Proving Grounds/DG-204

Advanced Diagnostic Strategy

A repeatable diagnostic battle plan for faults that stump the scan tool.

22 hours

4 modules

Command tier

Access fee

$1,850

Certification

Diagnostic Commander

Field footage · Durham yard

Training modules

Sequential · complete each module to unlock the assessment

Building a Diagnostic Battle Plan

Triage order, information sources and the fault tree before tools.

15 MIN

Live Data Interpretation Under Load

Reading fuel trims, boost and rail pressure under real load conditions.

24 MIN

Cylinder Contribution Testing

Cut-out tests, compression and injector balance interpretation.

28 MIN

Documenting Evidence for Warranty

Building a claim packet that survives OEM review.

18 MIN

Field-readiness assessment

70% to pass

Course doctrine

Structured triage, live data interpretation under load, cylinder contribution testing and evidence documentation for warranty claims. This is the module our senior techs use on every hard fault.

Embedded field video from live repairs

Downloadable field schematic per module

Assessment bank scored at 70% to certify

Printable certificate of competency

All disciplines