11) How CEN Tests Work
1512) Emissions, OBD-II & Fuel Trim Fundamentals
22) Safety, Tools & Diagnostic Mindset
1613) Hybrids/EV Basics for ASE Context
3Safety & Fundamentals
1714) Work Orders, Customer Communication & Ethics
4Diagnostic Flow (your default stack)
1815) Test-Day Strategy & 4-Week Study Plan
5Foundational Tools
19Strategy
63) Engine Repair (A1)
204-Week Plan (60–90 min/day, 5–6 days/week)
74) Automatic Transmission/Transaxle (A2)
2116) Quick Reference Tables
85) Manual Drivetrain & Axles (A3)
22Battery SOC by Voltage (approx., key off, ~21 °C)
96) Suspension & Steering (A4)
23Typical Charging System Output
107) Brakes (A5)
24Alignment Clues
118) Electrical/Electronic Systems (A6)
25Brake Diagnostics
129) Heating & Air Conditioning (A7)
26Fuel Trim Cheats
1310) Engine Performance (A8)
2717) Practice Questions (25) with Explanations
1411) Light Vehicle Diesel (A9)
