Voltzs
HomeCurriculumTestingProgress
VoltzsSign in
Curriculum
Module 33advanced

Master Diagnostic Technician Capstone

Ten unfamiliar vehicle cases requiring the learner to choose the diagnostic path without being told which system or component is faulty.

Lessons

10

Estimated time

200 min

Completed

00/10

Volt probing a wiring connector with a multimeter
Start lesson 01

Lessons

10 total

  1. 01Case 1: No Crank With Misleading Battery VoltageUse load, current and voltage-drop evidence rather than resting voltage alone.20 min
  2. 02Case 2: Multiple 5V Sensor CodesFind the common electrical cause rather than replacing multiple sensors.20 min
  3. 03Case 3: Intermittent CAN Network CollapseUse topology, scope and isolation strategy to locate an intermittent bus fault.20 min
  4. 04Case 4: LIN-Controlled Charging FaultCombine B+, ground, LIN and energy-management evidence.20 min
  5. 05Case 5: Parasitic Drain and Module Wake-UpCorrelate current logging with wake events and module status.20 min
  6. 06Case 6: Diesel Crank-No-StartUse cranking, sync, pressure command/actual and actuator evidence in sequence.20 min
  7. 07Case 7: Body Electrical Multi-FaultUse commonality rather than treating each failed function independently.20 min
  8. 08Case 8: ABS/ADAS Warning CascadeIdentify the primary fault behind secondary system inhibitions.20 min
  9. 09Case 9: Infotainment and Battery DrainIntegrate network and parasitic-drain skills.20 min
  10. 10Case 10: Unknown Vehicle Master DiagnosisDemonstrate the Voltzs outcome: approach an unfamiliar vehicle logically, safely and confidently.20 min
Voltzs

Voltzs teaches automotive electrical diagnosis by evidence: what to test, where to test it, and what the reading proves.

£20 a month · 7 days free · 30-day money-back guarantee

Navigate

CurriculumYour progressContact usSign in

Legal

Terms of servicePrivacy policyRefunds & guaranteeCookie policy

© 2026 Voltzs

Evidence over guesswork

  • Home
  • Curriculum
  • Testing
  • Progress
Edit with