Curriculum
Module 01foundation

Automotive Electrical Fundamentals

Build the electrical foundation every diagnostician needs: voltage, current, resistance, circuit behaviour, meter use, voltage drop and evidence-based fault finding.

Lessons

10

Estimated time

290 min

Completed

00/10

By the end of this module

Understand core automotive electrical principles, use a digital multimeter safely, interpret common readings and begin diagnosing basic electrical faults logically.

Lessons

10 total

  1. 01Understanding Automotive ElectricityIntroduce electricity entirely through the vehicle: what electrical energy represents, how current flows from source through protection, control and load, and why a complete circuit matters.Free preview25 min
  2. 02Voltage: Electrical PressureVoltage as potential difference and as a diagnostic measurement: where the probes go, what DC voltage means, and why low supply voltage makes modern systems behave unpredictably.25 min
  3. 03Current: Understanding Amps and Electrical LoadCurrent as the rate of charge flow through a closed circuit, connected directly to vehicle loads such as starter motors, lighting and control modules.25 min
  4. 04Resistance: Understanding OhmsResistance through the exact readings technicians see on a multimeter, making 0 ohms, low resistance, kilo-ohm values and OL meaningful.25 min
  5. 05Automotive Circuits and Current PathsBuild complete circuits and introduce the architecture technicians meet repeatedly: battery, fuse or fusible link, relay, control side, load and ground return.30 min
  6. 06Using a Digital MultimeterPhysical meter use to a workshop-ready standard: sockets, lead placement, ranges, modes, backprobing and safe technique.30 min
  7. 07Voltage Drop: Finding Resistance Under LoadVoltage drop as a core diagnostic technique, making it visually obvious that a connection can pass continuity yet fail under load.30 min
  8. 08Common Automotive Electrical FaultsConnect physical faults to electrical behaviour: corrosion, fretting, spread terminals, chafing, poor grounds and intermittent connections.30 min
  9. 09Thinking Like a Diagnostic TechnicianConvert all fundamentals into a repeatable diagnostic mindset: complaint, verification, system understanding, test plan, evidence and confirmation.30 min
  10. 10Practical Assessment: No Crank, No StartModule assessment. Apply every Module 01 concept to a realistic no-crank, no-start case and prove the root cause with evidence.40 min