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Level 2

Automotive Electricity

Voltage, current and resistance in a real vehicle, then battery, charging, starting, protection, wiring and the multimeter.

11 Modules 18 Lessons Level exam

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Electricity Fundamentals

Voltage, current, resistance and Ohm's law in automotive circuits.

3 Lessons 25 min
  1. 1 Voltage, Current and Resistance beginner 9 min
  2. 2 Ohm's Law beginner 8 min
  3. 3 Series and Parallel Circuits intermediate 8 min
Open module Module quiz

Battery

Construction, open-circuit voltage, load testing and the real reasons batteries fail.

2 Lessons 17 min
  1. 1 How a Lead-Acid Battery Works beginner 8 min
  2. 2 Open-Circuit Voltage and State of Charge intermediate 9 min
Open module Module quiz

Alternator

Rectification, regulation and how to prove a charging fault.

2 Lessons 19 min
  1. 1 How an Alternator Charges intermediate 9 min
  2. 2 Testing the Charging System intermediate 10 min
Open module Module quiz

Starter Motor

Cranking current, solenoid operation and diagnosing a no-crank condition.

1 Lessons 9 min
  1. 1 How the Starter Motor Works intermediate 9 min
Open module Module quiz

Fuses and Relays

Protection strategy and how a relay switches a large load with a small command.

2 Lessons 17 min
  1. 1 Protection Strategy: Fuses, Breakers and Links beginner 8 min
  2. 2 Testing a Relay intermediate 9 min
Open module Module quiz

Wiring and Grounds

Cable sizing, connectors, terminals and why grounds cause the strangest faults.

1 Lessons 9 min
  1. 1 Ground Testing intermediate 9 min
Open module Module quiz

Reading Wiring Diagrams

Decode symbols, connectors and circuit numbers like a pro.

1 Lessons 10 min
  1. 1 Diagram Symbols and Layout intermediate 10 min
Open module Module quiz

Using a Multimeter

The single most important tool in automotive diagnosis, used correctly.

3 Lessons 27 min
  1. 1 Multimeter Setup and Safety beginner 8 min
  2. 2 Measuring Voltage, Resistance and Continuity intermediate 10 min
  3. 3 A Structured Multimeter Workflow intermediate 9 min
Open module Module quiz

Voltage Drop Diagnosis

The professional method for finding hidden resistance in cables, connectors and grounds.

1 Lessons 10 min
  1. 1 The Voltage Drop Method intermediate 10 min
Open module Module quiz

Lighting & Signalling

Headlights, indicators and the systems that keep you seen.

1 Lessons 9 min
  1. 1 Lighting and Signalling Basics intermediate 9 min
Open module Module quiz

Wiring Repair & Crimping

Repairing harnesses properly, so the fault does not come back.

1 Lessons 10 min
  1. 1 Wiring Repair and Connectors advanced 10 min
Open module Module quiz
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Level exam

Pass mark: 70%

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All values shown are training examples. Real thresholds depend on the manufacturer, engine, temperature and system — always confirm with the vehicle service documentation.
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