Automotive electrical training

Lesson 1 • Electrical Units and Measurement Basics

Introduces SI prefixes, unit conversions, and proper use of a digital multimeter. Learners perform accurate voltage, current, and resistance readings.

Lesson 2 • Voltage, Current, and Resistance

Defines the three core electrical quantities and their units. Learners apply Ohm's Law to calculate unknowns in simple automotive circuits.

Lesson 3 • Magnetism and Electromagnetic Induction

Explains magnetic fields, flux, and how relative motion induces voltage. Connects electromagnetic principles to motors, generators, and solenoids.

Lesson 4 • Series, Parallel, and Series-Parallel Circuits

Analyses how loads combine in each circuit type. Learners calculate total resistance, voltage drops, and branch currents for each configuration.

Lesson 1 • Connectors, Terminals, and Splices

Examines OEM connector families, terminal designs, and splice methods. Correct termination technique ensures low-resistance, vibration-resistant connections.

Lesson 2 • Switches, Relays, and Solenoids

Describes how switches interrupt circuits and how relays and solenoids extend control capability. Learners trace control vs. power circuits in relay diagrams.

Lesson 3 • Grounds, Ground Paths, and Bonding

Covers chassis ground strategy, ground strap placement, and the effect of poor grounds on circuit performance. Learners locate and test ground integrity.

Lesson 4 • Fuses, Breakers, and Fusible Links

Explains overcurrent protection devices, their ratings, and placement in vehicle circuits. Learners match protection devices to circuit ampacity requirements.

Lesson 1 • Schematic Symbols and Conventions

Identifies standard symbols for all common automotive electrical components. Consistent symbol recognition is the foundation for accurate diagram reading.

Lesson 2 • Tracing Circuits Through Diagrams

Applies a systematic method to follow current path from battery positive through loads to ground. Learners practise on multi-page OEM diagrams.

Lesson 3 • Using Service Information Systems

Navigates electronic service information platforms to retrieve wiring diagrams and connector data. Efficient retrieval reduces diagnostic time.

Lesson 4 • Types of Automotive Diagrams

Distinguishes schematic, wiring, block, and component location diagrams. Each type serves a different diagnostic or repair purpose.

Lesson 1 • Alternator Operation and Output

Describes three-phase AC generation, rectification to DC, and voltage regulation. Learners understand how the alternator responds to electrical load changes.

Lesson 2 • Battery Testing and Specification

Covers CCA, CA, RC ratings, and how to perform load, conductance, and open-circuit voltage tests. Accurate testing prevents unnecessary battery replacement.

Lesson 3 • Lead-Acid Battery Construction and Chemistry

Explains plate chemistry, electrolyte reactions, and cell voltage during charge and discharge. Battery chemistry knowledge guides correct testing and charging procedures.

Lesson 4 • Battery and Charging System Service

Covers safe battery handling, memory-saver use, alternator R&R, and belt tension. Proper service procedures protect electronics and ensure system longevity.

Lesson 1 • Starter Drive and Engagement Mechanisms

Covers overrunning clutch, solenoid-shift, and gear-reduction starter designs. Learners identify engagement noise and mechanical failure patterns.

Lesson 2 • Starter Motor Construction and Operation

Explains armature, field windings, brushes, and commutator function in DC motors. Motor construction knowledge supports accurate mechanical and electrical diagnosis.

Lesson 3 • Cranking Circuit Wiring and Control

Traces the high-current cranking circuit and the low-current control circuit through ignition switch and neutral safety switch. Learners read cranking circuit diagrams.

Lesson 1 • Ignition Coil and High-Voltage Circuit

Explains primary and secondary winding induction, saturation time, and spark plug firing voltage. Learners measure primary resistance and secondary output.

Lesson 2 • ECM Spark Timing Control

Describes how the ECM calculates base timing, advance, and retard using sensor inputs and knock feedback. Learners interpret timing data on a scan tool.

Lesson 3 • Ignition System Evolution and Types

Surveys contact-point, electronic, distributorless, and coil-on-plug ignition architectures. Historical context clarifies why modern systems offer superior timing accuracy.

Lesson 4 • Ignition System Diagnosis and Testing

Applies oscilloscope, spark tester, and scan tool methods to isolate misfires and ignition faults. Learners correlate misfire codes with waveform evidence.

Lesson 1 • OBD-II Diagnostics and Fault Codes

Covers OBD-II monitor readiness, DTC structure, freeze frame data, and scan tool navigation. Learners perform a complete diagnostic workflow from code retrieval to verification.

Lesson 2 • Closed-Loop Fuel Control and Trims

Describes how the ECM uses oxygen sensor feedback to maintain stoichiometry and records short-term and long-term fuel trims. Trim values guide diagnosis.

Lesson 3 • Sensor Operating Principles

Classifies sensors by output type: analog voltage, digital frequency, and switched. Understanding output type determines correct test method and expected values.

Lesson 4 • Fuel Injector and Actuator Control

Explains injector pulse width, duty cycle, and peak-and-hold driver circuits. Learners measure injector current waveforms and calculate fuel delivery.

Lesson 1 • Diagnosing Intermittent Electrical Faults

Covers techniques for capturing intermittent faults using data logging, wiggle tests, and thermal stress. Intermittent faults are the most time-consuming diagnostic challenge.

Lesson 2 • Vehicle Communication Network Architecture

Explains CAN, LIN, and MOST network topologies, bus speeds, and module roles. Network architecture knowledge is prerequisite for bus-level fault diagnosis.

Lesson 3 • Systematic Electrical Diagnostic Process

Introduces a structured six-step diagnostic process: verify, define, research, test, repair, verify. Systematic process prevents misdiagnosis and repeat repairs.

Lesson 4 • Body and Comfort System Diagnosis

Applies network and circuit diagnostic skills to body control module, lighting, and HVAC systems. Learners trace BCM-controlled outputs and diagnose inoperative accessories.