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    Automotive Electronic Diagnostics (AED)

    Quick Facts
    Course ID: AED
    Duration: 2 Days


    The AED training is our most popular seminar. Designed to give you a thorough understanding of electronic diagnostics. This seminar makes
    complex electronics simple to understand and easy to diagnose. We suggest that even if you think you are proficient with automotive
    diagnostics, AED will deepen your skill set, if nothing else consider it another perspective.

    training manual pictures. training manual pictures. training manual pictures.

    The AED is a suggested pre requisite for all other AECStraining seminars except the Scan tool Diagnostics. Please refer to the flow diagram for a proposed study path.

    • Wiring diagrams
      - How to predict signal and supply voltages while reading a wiring diagram before actually measuring.
      - Signal and current flow.
      - Locate junction points, trouble spots and find bad connections.
      - The effect of bad connections on adaption values.


    • Components parallel and series
      - Predict voltages in simple wiring diagrams.
      - Measure on different types of circuits with regards to diagnostics.
      - The effect of failures within a circuit
      - Transistor switched circuits, theory and practical.


    • Resistors / Resistance diagnostics
      - The effects of bad connections on sensors and acutators
      - How bad connections occur
      - How to locate bad connections in actuator and sensor circuits, and how one faulty circuit can affect the other.
      - The effect of bad connections on the ECU.
      - ECU fault code setting procedure.


    • Short circuit diagnostics
      - How to locate different types of short circuits in a sensor circuit with the aid of measurement equipment and fault codes.
      - The effect of short circuits variants (either full short or part short circuits) on the engine management system.


    • Automotive variable resistors
      - Carbon track and measuring vane construction and principles.
      - How to diagnose faults
      - fault code setting methods by the ECU
      - ECU hard and soft trigger values (for understanding generic ECU working principles)
      - Dual variable resistor track in drive by wire systems.


    • Inductive Sensors
      - Coil / core construction
      - Magnetic field disturbance and signal generation
      - ECU trigger values
      - Fault code setting methods by the ECU
      - Relation between for example crank and camshaft sensor signals.


    • Hall Sensors
      - Working principle from a diagnostic perspective.
      - Signal diagnostics.
      - ECU trigger values.
      - Fault code settings via soft parameters.
      - How to diagnose signal with Multi meter.
      - Latest Toyota Hall sensor variation and fault codes triggers.
      - Common faults.


    • Solenoids and relays
      - Magnetic fields and the effect on cores and needles.
      - NO and NC valves.
      - Activation and de-activation of coils.
      - How induced spikes are generated and where they are affecting the overal electronic system.
      - Protection circuits in relays and the most commonly made connection mistakes with regards to protection circuits.


    • Temperature sensors
      - Circuit description in and outside the ECU
      - Voltage signal understanding including diagnosing the thermostat without taking it out of its housing.
      - Fault code setting methods by the ECU.
      - ECU trigger values.
      - The impact of bad connections and shorts, specifically on a modern CAN data bus system.
      - Multec temp sensor system description (e.g. Holden).


    • Diodes and transistors
      - Very brief over view (more for self study) but prelude to ignitors


    • Ignition Modules
      - Simple system description and activation
      - Common problems when the ignitor fails as a result of for example a removed spark lead.
      - Signal voltage description and short comings Multi meter. Fault code setting methods by the ECU.
      - More complex Ignitor module description Toyota V6 (ignition feed back) and Holden V6 (ignition control switch over)
      - Determining the correct coil replacement parameters.


    • Multi meter Knowledge
      - Proper measuring practices on electronic systems.
      - Shortcomings of multi meters in electronics.
      - Why not to use Ohms/ resistance measurements in most diagnostics.


    training manual pictures. training manual pictures. training manual pictures.


    The automotive electronic diagnostic training is both hands on and theory. The hands on, is measuring on system wiring diagrams connected to real working systems and measuring on small circuit boards. Bring your own equipment or use our equipment.

    To understand why under certain circumstances a fault is logged a most importantly WHY NOT is invaluable in diagnostics. The voltage prediction skill in wiring diagrams is a big workshop time saver.

    The AED training seminar is one of our most popular seminars, it is updated continuously to keep up with changing technology, yet the strong core remains.

    Quote:
    After Ben from NZDF - 2 Workshop Company attended the AED training seminar in Wellington (8 06 2010).
    Ben wrote as comment in the evaluation form that as most value to him was: "Everything was of value I learnt a lot."