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Electrical/Electronic Systems Level 1

AUTO 106

Electrical/Electronic Systems Level 1

AUTO 106

Course Description

Introduces basic electrical/electronic systems on today’s high tech vehicles. Practices NATEF tasks to MLR (maintenance and light repair) level related to electrical/electronic systems. (60-48)

Outcomes and Objectives

Complete general electrical and electronic systems Level 1 NATEF tasks as listed below.

Objectives:

  • Research applicable vehicle and service information, vehicle service history, service precautions, and technical service bulletins
  • Demonstrate knowledge of electrical/electronic series, parallel, and series-parallel circuits using principles of electricity (Ohm’s Law).
  • Use wiring diagrams to trace electrical/electronic circuits.
  • Demonstrate proper use of a digital multimeter (DMM) when measuring source voltage, voltage drop (including grounds), current flow, and resistance.
  • Demonstrate knowledge of the causes and effects from shorts, grounds, opens, and resistance problems in electrical/electronic circuits.
  • Check operation of electrical circuits with a test light.
  • Check operation of electrical circuits with fused jumper wires.
  • Measure key-off battery drain (parasitic draw).
  • Inspect and test fusible links, circuit breakers, and fuses; determine necessary action.
  • Perform solder repair of electrical wiring.
  • Replace electrical connectors and terminal ends.

Complete Level 1 NATEF tasks related to Battery Service as listed below.

Objectives:

  • Perform battery state-of-charge test; determine necessary action
  • Confirm proper battery capacity for vehicle application; perform battery capacity test; determine necessary action.
  • Maintain or restore electronic memory functions.
  • Inspect and clean battery; fill battery cells; check battery cables, connectors, clamps, and hold-downs.
  • Perform slow/fast battery charge according to manufacturer’s recommendations.
  • Jump-start vehicle using jumper cables and a booster battery or an auxiliary power supply.
  • Identify high-voltage circuits of electric or hybrid electric vehicle and related safety precautions.
  • Identify electronic modules, security systems, radios, and other accessories that require reinitialization or code entry after reconnecting vehicle battery.
  • Identify hybrid vehicle auxiliary (12v) battery service, repair, and test procedures.

Complete Level 1 NATEF tasks related to Starting Systems as listed below.

Objectives:

  • Perform starter current draw test; determine necessary action.
  • Perform starter circuit voltage drop tests; determine necessary action.
  • Inspect and test starter relays and solenoids; determine necessary action.
  • Remove and install starter in a vehicle.
  • Inspect and test switches, connectors, and wires of starter control circuits; determine necessary action.

Complete Level 1 NATEF tasks related to Charging Systems as listed below.

Objectives:

  • Perform charging system output test; determine necessary action
  • Inspect, adjust, or replace generator (alternator) drive belts; check pulleys and tensioners for wear; check pulley and belt alignment.
  • Remove, inspect, and re-install generator (alternator).
  • Perform charging circuit voltage drop tests; determine necessary action.

Complete Level 1 NATEF tasks related to Lighting Systems as listed below.

Objectives:

  • Inspect interior and exterior lamps and sockets including headlights and auxiliary lights (fog lights/driving lights); replace as needed.
  • Aim headlights.
  • Identify system voltage and safety precautions associated with high-intensity discharge headlights.

Complete Level 1 NATEF tasks related to Electrical Accessories as listed below.

Objectives:

  • Disable and enable airbag system for vehicle service; verify indicator lamp operation.
  • Remove and reinstall door panel.
  • Describe the operation of keyless entry/remote-start systems.
  • Verify operation of instrument panel gauges and warning/indicator lights; reset maintenance indicators.
  • Verify windshield wiper and washer operation; replace wiper blades.

Complete required supplemental Level 1 NATEF tasks as listed below.

Objectives:

  • Demonstrate awareness of the safety aspects of supplemental restraint systems (SRS), electronic brake control systems, and hybrid vehicle high voltage circuits.
  • Demonstrate awareness of the safety aspects of high voltage circuits (such as high intensity discharge (HID) lamps, ignition systems, injection systems, etc.).