Introduction and definitions

Legal requirements

• Vehicles to be equipped with certain lamps
• Colour of  lights
• Manner in which lamps to be fitted and maintained
  

Electrical units and basic principles

• Units of electricity
• Ohm’s law

Battery technology

• Battery design
• Battery service procedures
• Topping up the electrolyte
• Flat battery
• Battery testing procedures
• Cleaning the battery
• Charging the battery in the workshop
• Maintenance-free batteries
• Batteries of the future

Circuits and wiring diagrams

• Circuits
• Flow of electricity
• Earth return
• Circuit protection - fuses and circuit breakers
• Main circuits
• Joining wires
• Trailer connector wiring

Alternators

• Introduction
• Rectification of alternating current (A.C.) to direct current (D.C.)
• The important requirements of the alternator
• The circuits of the alternator

 Starter motors

• Starter motor requirements
• Starter motor design
• Solenoid switch/relay
• Pinion drives

Other electrical components

• Vehicle lighting
• Light bulbs
• Switches and fuses
• Warning devices and gauges

Electronic systems

• Electronic engine management systems
• Anti-lock braking systems (ABS)
• Electronically-controlled braking systems (EBS)

Maintenance, testing and fault diagnosis

• Basic electrical system faults
• Testing equipment
• Testing lighting circuits