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Level 3

Automotive Electronics

How the car senses the world, decides, acts and communicates — including the oscilloscope and the CAN bus.

10 Modules 13 Lessons Level exam

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Sensors

How the ECU turns physical quantities into electrical signals.

2 Lessons 20 min
  1. 1 Sensor Types and Signals intermediate 10 min
  2. 2 Testing Sensors in Practice intermediate 10 min
Open module Module quiz

Actuators

Injectors, coils, motors and valves — how command becomes action.

1 Lessons 10 min
  1. 1 Actuator Types intermediate 10 min
Open module Module quiz

Engine Control Units

Inputs, processing and outputs, plus power, ground and wake-up circuits.

1 Lessons 11 min
  1. 1 ECU Power, Ground and Wake-Up advanced 11 min
Open module Module quiz

Communication Between ECUs

Gateways, message priority and what happens when modules fall silent.

1 Lessons 10 min
  1. 1 How ECUs Talk to Each Other intermediate 10 min
Open module Module quiz

CAN Bus

The dominant automotive network: topology, differential signalling and real faults.

2 Lessons 21 min
  1. 1 CAN Bus Basics intermediate 10 min
  2. 2 Diagnosing CAN Faults advanced 11 min
Open module Module quiz

Analog and Digital Signals

Sampling, PWM and how digital signals carry analog information.

1 Lessons 9 min
  1. 1 PWM Explained intermediate 9 min
Open module Module quiz

Automotive Oscilloscope

Time base, voltage scale and reading the shape of a signal, not just its average.

2 Lessons 22 min
  1. 1 Setting Up an Automotive Oscilloscope advanced 11 min
  2. 2 Reading Waveforms advanced 11 min
Open module Module quiz

LIN, FlexRay & Ethernet

The networks that live alongside CAN.

1 Lessons 10 min
  1. 1 Networks Beyond CAN advanced 10 min
Open module Module quiz

Comfort & Immobilizer Electronics

Central locking, windows, lighting comfort and anti-theft systems.

1 Lessons 10 min
  1. 1 Comfort and Immobilizer Electronics intermediate 10 min
Open module Module quiz

Driver Assistance (ADAS)

Cameras, radar and lidar — and the calibration that keeps them honest.

1 Lessons 11 min
  1. 1 ADAS Basics and Calibration advanced 11 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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