HELP 2018-2019 Course Catalog [ARCHIVED CATALOG] Print this Page Facebook this Page (opens a new window) Tweet this Page (opens a new window) Add to Portfolio (opens a new window)

AUT 612 - Auto Electrical II

1. Examine Electrical Circuits.
   1. Describe interior and exterior lighting component operation.
   2. Inspect interior and exterior lamps and sockets including headlights and auxiliary lights (fog lights/driving lights); replace as needed.
   3. Perform aiming of headlights following vehicle manufacturer’s recommended procedures.
   4. Identify system voltage and safety precautions associated with high-intensity discharge headlights.
   5. Discuss power windows and locks operation.
   6. Perform removal and reinstall of door panels while servicing window and lock components.
   7. Describe the operation of keyless entry/remote-start systems.
   8. Discuss instrumentation, warning indicators, and audible warnings.
   9. Verify operation of instrument panel gauges and warning/indicator lights; reset maintenance indicators.
   10. Examine windshield wiper and washer systems.
   11. Verify windshield wiper and washer operation; replace wiper blades.
2. Practice Safety Procedures.
   1. Discuss hybrid high voltage systems.
   2. Identify hybrid vehicle auxiliary (12v) battery service, repair, and test procedures.
   3. Identify high-voltage circuits of electric or hybrid electric vehicle and related safety precautions.
   4. Explain active and passive restraint systems.
   5. Perform disabling and enabling of airbag systems for vehicle service; verify indicator lamp operation.
3. Assess Electrical Faults.
   1. Perform system functional check.
   2. Use principles of electricity for diagnostic strategy.
   3. Use wiring diagrams as a diagnostic resource.
   4. Demonstrate knowledge of the causes and effects from shorts, grounds, opens, and resistance problems in electrical/electronic circuits.
   5. Make digital multimeter measurements during electrical diagnosis.
   6. Inspect and test switches, connectors, and solid state devices.
   7. Locate shorts, opens, and hi resistance in circuits.
   8. Determine necessary repairs.
4. Examine Engine Performance and Emission Control.
   1. Define hydrocarbon emissions.
   2. Explain carbon monoxide emissions.
   3. Discuss oxides of nitrogen emissions.
   4. Explain carbon dioxide emissions.
   5. Discuss oxygen emissions.
   6. Describe state and federal emission laws.
5. Assess emission control devices.
   1. Discuss catalytic converter operation.
   2. Describe positive crankcase ventilation (PCV) systems.
   3. Explain the principles of exhaust gas recirculation (EGR).
   4. Examine evaporative emission control.
   5. Define secondary air injection.
6. Evaluate emission control systems.
   1. Test catalytic converter efficiency and exhaust system integrity.
   2. Perform engine absolute (vacuum/boost) manifold pressure tests; determine necessary action.
   3. Measure exhaust back-pressure; determine necessary repairs.
   4. Inspect, test, and service positive crankcase ventilation (PCV) filter/breather cap, valve, tubes, orifices, and hoses; perform necessary action.
   5. Inspect and test EGR systems; determine necessary repairs.
   6. Inspect and test evaporative emission components for leaks and operation; determine necessary repairs.
   7. Inspect and test secondary air injection system operation; determine necessary repairs.
7. Examine electronic engine control terminology.
   1. Describe government standards for engine performance.
   2. Explain SAE acronyms.
   3. Describe OBD2 diagnostic monitors.
   4. Discuss enabling criteria.
   5. Define an OBD trip or drive cycle.
   6. Explain the function of onboard engine computers.
   7. Interpret generic and manufacturer-specific diagnostic trouble codes (DTCs).
   8. Discuss type A, B, C, and D DTCs.
   9. Explain freeze frame data.
   10. Discuss malfunction indicated lamp (MIL) operation.
   11. Retrieve and record diagnostic trouble codes, OBD monitor status, and freeze frame data; clear codes when applicable.
   12. Describe the importance of operating all OBDII monitors for repair verification.
8. Evaluate ignition system operation.
   1. Identify primary and secondary component operation.
   2. Explain ignition timing theory.
   3. Examine crank and cam sensors.
   4. Discuss ignition system computer interface.
   5. Perform cylinder power balance test; determine necessary action.
   6. Remove and replace spark plugs; inspect secondary ignition components for wear and damage.

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