Diagnostic Core
Best for technicians moving from basic competence into reliable diagnostic ownership.
Build stronger proof, better complaint framing, and more confident system separation across the problems shops see every week.
IntermediateFoundations 2
Diagnostic Core · Recommended order #1
Build the next layer of technician discipline: better test choices, cleaner handoff, stronger escalation, and honest confidence when the job gets messy.
- 4 weeks · 8 lessons
- Technicians who already understand basic workflow and now need better judgment under pressure.
- Build technicians who protect paid time, preserve diagnostic value, and communicate proof clearly when cases stop being easy.
Review placement detailsIntermediate to AdvancedElectrical 2
Diagnostic Core · Recommended order #2
Teach stronger electrical judgment under pressure: intermittent faults, loaded proof, control-side reasoning, and cleaner module/network thinking.
- 5 weeks · 8 lessons
- Technicians who already understand basic circuit testing and now need stronger proof strategy on harder electrical cases.
- Build technicians who can narrow difficult electrical problems faster, prove the lane cleanly, and stop turning intermittent clues into random part replacement.
Review placement detailsCore SystemHVAC 1
Diagnostic Core · Recommended order #3
Teach technicians how to separate refrigerant, airflow, control, and heat-load complaints so HVAC recommendations are based on proof instead of guesswork.
- 5 weeks · 8 lessons
- Technicians who need stronger A/C complaint framing, better airflow-vs-refrigeration separation, and more credible HVAC recommendations.
- Build technicians who can take vague hot-or-warm air complaints, test the right lane, and explain HVAC repair logic clearly without replacing parts on hope.
Review placement detailsCore SystemEngine Performance 1
Diagnostic Core · Recommended order #4
Teach technicians how to separate drivability complaints into the right performance lanes and make engine-performance recommendations from evidence instead of pattern-memory alone.
- 5 weeks · 8 lessons
- Technicians who need stronger complaint framing, better lane selection, and more disciplined engine-performance diagnosis under real shop pressure.
- Build technicians who can frame engine performance complaints cleanly, test the right lane, and explain fuel-air-spark-control repair logic with stronger proof.
Review placement detailsCore SystemTransmission / Driveline 1
Diagnostic Core · Recommended order #5
Teach technicians how to separate shift, engagement, driveline, and load complaints so transmission recommendations are based on behavior and proof instead of fear or guesswork.
- 5 weeks · 8 lessons
- Technicians who need stronger transmission complaint framing, better separation of driveline vs transmission symptoms, and more disciplined recommendation logic.
- Build technicians who can frame transmission and driveline complaints clearly, test the right lane, and explain repair logic without turning every symptom into a full unit replacement story.
Review placement detailsAdvanced SystemEngine Mechanical 1
Diagnostic Core · Recommended order #6
Teach technicians how to separate mechanical engine problems from fuel, ignition, control, and drivability lookalikes so heavy recommendations are based on proof instead of fear.
- 6 weeks · 8 lessons
- Technicians who need stronger engine-mechanical diagnostic discipline before recommending teardown, timing work, engine replacement, or other heavy repairs.
- Build technicians who can frame mechanical-engine complaints clearly, test the right lane, and explain compression, timing, sealing, and restriction concerns without bluffing or overcalling the failure.
Review placement detailsAdvanced SystemADAS / Calibration 1
Diagnostic Core · Recommended order #7
Teach technicians how to separate scan-tool ritual from real ADAS responsibility by framing when calibration is required, what prerequisites matter, and how to explain the work cleanly.
- 6 weeks · 8 lessons
- Technicians and shop leads who need stronger ADAS calibration judgment, safer repair planning, and cleaner customer-facing explanations.
- Build technicians who can identify ADAS-related repair triggers, confirm prerequisites, perform or route calibration responsibly, and document the logic without bluffing or shortcut language.
Review placement details