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Electrical-Electronic Systems Level 3

ASEP 206

Electrical-Electronic Systems Level 3

ASEP 206

Course Description

Prerequisite: ASEP 156. Practices the diagnostic procedures and repair of electrical/electronic systems on today’s high tech vehicles. Practices NATEF tasks to MAST (Master Automotive Service Technology) level related to electrical/electronic systems. Requires meeting all related GM ASEP training requirements. (15-33)

Outcomes and Objectives

Complete general electrical and electronic systems Level 3 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).
  • 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.
  • Use wiring diagrams during the diagnosis (troubleshooting) of electrical/electronic circuit problems.
  • Diagnose the cause(s) of excessive key-off battery drain (parasitic draw); determine necessary action.
  • Inspect and test fusible links, circuit breakers, and fuses; determine necessary action.
  • Inspect and test switches, connectors, relays, solenoid solid state devices, and wires of electrical/electronic circuits; determine necessary action.
  • Replace electrical connectors and terminal ends.
  • Repair wiring harness.
  • Perform solder repair of electrical wiring.
  • Check electrical/electronic circuit waveforms; interpret readings and determine needed repairs.
  • Repair wiring harness (including CAN/BUS systems).

Complete Level 3 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 3 NATEF tasks related to Starting Systems as listed below.

Objectives:

  • Perform starter current draw tests; 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.
  • Differentiate between electrical and engine mechanical problems that cause a slow-crank or a no-crank condition.

Complete Level 3 NATEF tasks related to Charging Systems as listed below.

Objectives:

  • Perform charging system output test; determine necessary action.
  • Diagnose (troubleshoot) charging system for causes of undercharge, no-charge, or overcharge conditions.
  • 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 3 NATEF tasks related to Lighting Systems as listed below.

Objectives:

  • Diagnose (troubleshoot) the causes of brighter-than-normal, intermittent, dim, or no light operation; determine necessary action.
  • 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 3 NATEF tasks related to Electrical Accessories as listed below.

Objectives:

  • Inspect and test gauges and gauge sending units for causes of abnormal gauge readings; determine necessary action.
  • Diagnose (troubleshoot) the causes of incorrect operation of warning devices and other driver information systems; determine necessary action.

Complete Level 3 NATEF tasks related to Horn and Wiper/Washer Diagnosis and Repair as listed below.

Objectives:

  • Diagnose (troubleshoot) causes of incorrect horn operation; perform necessary action.
  • Diagnose (troubleshoot) causes of incorrect wiper operation; diagnose wiper speed control and park problems; perform necessary action.
  • Diagnose (troubleshoot) windshield washer problems; perform necessary action.

Complete Level 3 NATEF tasks related to Accessories Diagnosis and Repair as listed below.

Objectives:

  • Diagnose (troubleshoot) incorrect operation of motor-driven accessory circuits; determine necessary action.
  • Diagnose (troubleshoot) incorrect electric lock operation (including remote keyless entry); determine necessary action.
  • Diagnose (troubleshoot) incorrect operation of cruise control systems; determine necessary action.
  • Diagnose (troubleshoot) supplemental restraint system (SRS) problems; determine necessary action.
  • Disable and enable an airbag system for vehicle service; verify indicator lamp operation.
  • Remove and reinstall door panel.
  • Check for module communication errors (including CAN/BUS systems) using a scan tool.
  • 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.
  • Diagnose (troubleshoot) radio static and weak, intermittent, or no radio reception; determine necessary action.
  • Diagnose (troubleshoot) body electronic system circuits using a scan tool; determine necessary action.
  • Diagnose the cause(s) of false, intermittent, or no operation of anti-theft systems.
  • Perform software transfers, software updates, or flash reprogramming on electronic modules.