Welcome to AUTOMOTIVE ELECTRICAL

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Welcome to AUTOMOTIVE ELECTRICAL
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COURSE OUTLINE

• ELECTRICAL SAFETY
• DIAGNOSTIC TOOLS
• ELECTRICAL BASICS
• WIRING
• STARTING AND CHARGING SYSTEMS
• ACCESSORY SYSTEMS
• ELECTRONIC SYSTEMS

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SOURCES OF ELECTRICAL ENERGY

• Power Source

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CHEMICAL REACTION

• Battery

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MAGNETIC

• Ignition coil
• Alternator

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LIGHT

• Photo Cell

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HEAT

• Thermocouple

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PRESSURE

• Piezoelectric crystal

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VOLTAGE

• Pressure
• Potential Energy
• EMF
• Volt(s)
• V
• E

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AMPERAGE

• Amp(s) A
• Ampere(s)
• Current
• Flow
• Intensity

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RESISTANCE

• Ohm(s)
• Restriction
• Obstacle to Current Flow
• Omega
• R

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RELATIONSHIP OF VOLTS, AMPS AND OHMS

• ASSUMING VOLTAGE STAYS THE SAME, IF RESISTANCE
  GOES UP, AMPERAGE WILL GO DOWN. IF RESISTANCE
  GOES DOWN, AMPERAGE WILL GO UP.

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PARTS OF A CIRCUIT

• Power Source
• Circuit Protection Device
• Switch
• Conductor (Wire)
• Load
• Ground

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ELECTRICAL CIRCUITS

• Series Circuit
• Parallel Circuit
• Series Parallel Circuit

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COMMON CIRCUIT FAILURES

• OPEN CIRCUIT
• GROUNDED CIRCUIT
• SHORT CIRCUIT
• POOR CONNECTIONS

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DIGITAL VOLT-OHMMETER

• 10 MEG OHM IMPEDANCE
• DIGITAL READOUT VERY PRECISE
• MULTI-METER (MULTI-USES)
• DIODE TESTER
• AUDIBLE CONTINUITY TESTER
• OVERRANGE INDICATOR

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DVOM VOLTAGE TESTS

• Power Switch
• Polarity
• Start with highest range and turn down range
  until most accurate reading
• Over-range indicator
• Low battery
• Hook across (parallel) device or circuit being
  tested

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DVOM AMPERAGE TESTS

• Fuse Protection
• Hook in series with circuit
• Function selector adjust to most accurate range
• Maximum amperage of meter

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DVOM OHMMETER TESTS

• Isolate component to be tested
• fuse protected
• Function selector to most accurate range

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TEST LIGHTS

• Self Powered Test Light
• Battery Powered
• Used to check continuity
• Non Powered Test Light
• Used for quick checks
• Low cost and simple to use

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JUMPER WIRES

• USED FOR TEST PURPOSES
• ABOUT 6, 12 3 FT, AND 15 FT.
• LARGE ENOUGH GAUGE
• DIFFERENT TERMINAL ENDS
• ALLIGATOR CLIPS

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THE END