AUTT 1020 Syllabus

Subject Code

AUTT

Course Number

1020

Course Title

Automotive Electrical Systems

Prerequisites

Corequisites

AUTT 1010

Terms Offered

Offered Fall and Spring

Credit Hours

(2-14-7)

Course Description

This course introduces automotive electricity and emphasizes the basic principles, diagnosis, and service/repair of batteries, starting systems, starting system components, alternators and regulators, lighting systems, gauges, horns, wipers/washers, and accessories. Students must pay a $20 supply fee when registering for this course.

Course Outcomes

General Electrical System Diagnosis
   O
rder       Description
      1            Complete work order to include customer information, vehicle identifying information, customer
                    concern, related service history, cause, and correction. P-1
      2            Identify and interpret electrical/electronic system concern; determine necessary action. P-1
      3            Research applicable vehicle and service information, such as electrical/electronic system
                    operation, vehicle service history, service precautions, and technical service bulletins. P-1
      4            Locate and interpret vehicle and major component identification number. P-1
      5            Diagnose electrical/electronic integrity of series, parallel, and series/parallel circuits using
                    principles of electricity (Ohms Law). P-1
      6            Use wiring diagrams during diagnosis of electrical circuit problems. P-1
      7            Demonstrate the proper use of a digital multimeter (DMM) during diagnosis of electrical circuit
                    problems, including: source voltage, voltage drop, current flow, and resistance. P-1
      8            Check electrical circuits with a test light; determine necessary action. P-2
      9            Check electrical/electronic circuit waveforms; interpret readings and determine needed repairs.
                    P-2
     10           Check electrical circuits using fused jumper wires; determine necessary action. P.2
     11           Locate shorts, grounds, opens, and resistance problems in electrical/electronic circuits;
                   determine necessary action. P-1
     12           Measure and diagnose the cause(s) of excessive parasitic draw; determine necessary action. P-1
     13           Inspect and test fusible links, circuit breakers, and fuses; determine necessary action. P-1
     14           Inspect and test switches, connectors, relays, solenoid solid-state devices, and wires of
                   electrical/electronic circuits; perform necessary action. P-1
     15           Remove and replace terminal end from connector; replace connectors and terminal ends. P-1
     16           Repair wiring harness (including CAN/BUS systems). P-1
     17           Perform solder repair of electrical wiring. P-1
     18           Identify location of hybrid vehicle high voltage circuit disconnect (service plug) location and
                    safety procedures. P-2

 

Battery Diagnosis and Service
   O
rder       Description
      1            Perform battery state-of-charge tests; determine necessary action. P-1
      2            Perform battery capacity test; confirm proper battery capacity for vehicle application, determine
                    necessary action. P-1
      3            Maintain or restore electronic memory function. P-1
      4            Inspect, clean, fill, and/or replace battery, battery cables, connectors, clamps, and hold-downs.
                    P-1
      5            Perform battery charge. P-1
      6            Start a vehicle using jumper cables or an auxiliary power supply. P-1
      7            Identify high voltage circuits of electric or hybrid electric vehicle and related safety precautions.
                    P-3
      8            Identify electronic modules, security systems, radios, and other accessories that require
                    reinitialization or code entry following battery disconnect. P-1
      9            Identify hybrid vehicle auxiliary (12V) battery service, repair and test procedures. P-3

 

Starting System Diagnosis and Repair
   O
rder       Description
      1            Perform starter current draw tests; determine necessary action. P-1
      2            Perform starter circuit voltage drop tests; determine necessary action. P-1
      3            Inspect and test starter relays and solenoids; determine necessary action. P-2
      4            Remove and install starter in a vehicle. P-1
      5            Inspect and test switches, connectors, and wires of starter control circuits; perform necessary
                    action. P-2
      6            Differentiate between electrical and engine mechanical problems that cause a slow-crank or no-
                    crank condition. P-2

 

Charging System Diagnosis and Repair
   O
rder       Description
      1            Perform charging system output test; determine necessary action. P-1
      2            Diagnose charging system for the cause of undercharge, no-charge, and over-charge
                    conditions.P.1
      3            Inspect, adjust, or replace generator (alternator) drive belts, pulleys, and tensioners; check
                    pulley and belt alignment. P-1
      4            Remove, inspect, and install generator (alternator). P-1
      5            Perform charging circuit voltage drop tests; determine necessary action. P-1

 

Lighting System Diagnosis and Repair
   O
rder       Description
      1            Diagnose the cause of brighter than normal, intermittent, dim, or no light operations; 
                    determine necessary action. P-1
      2            Inspect, replace, and aim headlights and bulbs. P-2
      3            Inspect and diagnose incorrect turn signal or hazard light operation; perform necessary action.
                    P-2
      4            Identify system voltage and safety precautions associate with high intensity discharge
                    headlights. P-2

 

Gauges, Warning Devices, and Driver Information Systems Diagnosis and Repair
   O
rder       Description
      1            Inspect and test gauges and gauge sending units for cause of abnormal gauge readings,
                    determine necessary action. P-1
      2            Inspect and test connectors, wires, and printed circuit boards of gauge circuits; determine
                    necessary action. P-3
      3            Diagnose the cause of incorrect operation of warning devices and other driver information
                    systems; determine necessary action. P-1
      4            Inspect and test sensors, connectors, and wires of electronic (digital) instrument circuits;
                    determine necessary action. P-3

 

Horn and Wiper/Washer Diagnosis and Repair
   O
rder       Description
      1            Diagnose incorrect horn operation; perform necessary action. P-1
      2            Diagnose incorrect wiper operation; diagnose wiper speed control and park problems; perform
                    necessary action. P-1
      3            Diagnose incorrect washer operation; perform necessary action. P-2

 

Accessories Diagnosis and Repair
   O
rder       Description
      1            Diagnose incorrect operation of motor-driven accessory circuits; determine necessary action.
                    P-1
      2            Diagnose incorrect heated glass, mirror, or seat operation; determine necessary action. P-3
      3            Diagnose incorrect electric lock operation (including remote keyless entry); determine necessary
                    action. P-1
      4            Diagnose incorrect operation of cruise control systems; determine necessary action. P-3
      5            Diagnose supplemental restraint system (SRS) concerns; determine necessary action. P-1
      6            Disarm and enable the airbag system for vehicle service. P-1
      7            Diagnose radio static and weak, intermittent, or no radio reception; determine necessary action.
                    P-3
      8            Remove and reinstall door panel. P-1
      9            Diagnose body electric system circuits using a scan tool; determine necessary action. P-2
     10           Check for module communication (including CAN/BUS systems) errors using a scan tool. P-2
     11           Diagnose the cause of false, intermittent, or no operation of anti-theft systems. P-3
     12           Describe the operation of keyless entry/remote-start systems. P-3
     13           Perform software transfers, software updates, or flash reprogramming on electronic modules.
                    P-3