Standard

 

AUT 122 - ELECTRICAL AND ELECTRONIC SYSTEMS

Course Description

Introduces automotive electricity. Topics include: general electrical system diagnosis; lighting system diagnosis and repair; gauges, warning devices, and driver information system diagnosis and repair; horn and wiper/washer diagnosis and repair; accessories diagnosis and repair.

 

Competency Areas

Hours

 

General Electrical System Diagnosis

Class

4

Lighting System Diagnosis and Repair

D. Lab

0

Gauges, Warning Devices, and Driver Information Systems Diagnosis and Repair

P. Lab/O.B.I.

6

Horn and Wiper/Washer Diagnosis and Repair

Credit

6

Accessories Diagnosis and Repair

 

 

 

 

 

 

 

 

Prerequisite:

AUT 120

Corequisite:

 

 

Course Guide

 

Competency

After completing this section, the student will:

Hours

Class

D.Lab

P.Lab/

O.B.I.

General Electrical System Diagnosis

10

     

15

 

Use wiring diagrams during diagnosis of electrical circuit problems.

 

Check electrical circuits with a test light; determine necessary action.

 

Check voltage and voltage drop in electrical/electronic circuits using a digital multimeter (DMM); determine necessary action..

 

Check current flow in electrical/electronic circuits and components using an ammeter; determine necessary action.

 

Check continuity and resistances in electrical/electronic circuits and components with an ohmmeter; determine necessary action.

 

Check electrical circuits using jumper wires; determine necessary action.

 

Locate shorts, grounds, opens, and resistance problems in electrical/electronic circuits; determine necessary action.

 

Measure and diagnose the cause(s) of abnormal key-off battery drain; determine necessary action.

 

Inspect and test fusible links, circuit breakers, and fuses; determine necessary action.

 

Inspect and test switches, connectors, relays, and wires of electrical/electronic circuits; perform necessary action.

 

Repair wiring harnesses and connectors.

 

Perform solder repair of electrical wiring.

 

 

 

Lighting System Diagnosis and Repair

10

     

  10   

 

Diagnose the cause of brighter than normal, intermittent, dim, or no light operation; determine necessary action.

 

Inspect, replace, and aim headlights and bulbs.

 

Inspect and diagnose incorrect turn signal or hazard light operation; perform necessary action

 

 

 

Gauges, Warning Devices, and Driver Information Systems Diagnosis and Repair

  5  

     

  10   

 

Inspect and test gauges and gauge sending units for cause of intermittent, high, low, or no gauge readings; determine necessary action.

 

Inspect and test connectors, wires, and printed circuit boards of gauge circuits; determine necessary action.

 

Diagnose the cause of incorrect operation of warning devices and other driver information systems; determine necessary action.

 

Inspect and test sensors, connectors, and wires of electronic instrument circuits; determine necessary action.

 

 

 

Horn and Wiper/Washer Diagnosis and Repair

  5   

     

  10   

 

Diagnose incorrect horn operation; perform necessary action.

 

Diagnose incorrect wiper operation; diagnose wiper speed control and park problems; perform necessary action.

 

Diagnose incorrect windshield washer operation; perform necessary action.

 

 

 

 

Accessories Diagnosis and Repair

  10   

     

  15   

 

Diagnose incorrect operation of motor-driven accessory circuits; determine necessary action.

 

Diagnose incorrect heated glass operation; determine necessary action.

 

Diagnose incorrect heated glass operation; determine necessary action.

 

Diagnose incorrect operation of cruise control systems; repair as needed.

 

Diagnose supplemental restraint system (SRS) concerns; determine necessary action.  (Note:  Follow manufacturer’s safety procedures to prevent accidental deployment.)

 

Diagnose radio static and weak, intermittent, or no radio reception; determine necessary action.

 

 

 

 

 

 

 

 

 

Suggested Resources

 

Books

 

Duffy, J. E.  (2000).  Modern AutomotiveTechnology.  South Holland, IL: Goodheart-Willcox.

 

Erjavec, J.  (2000).  Automotive Technology (3rd ed.).  Albany, NY: Delmar.

 

Erjavec, J.  (2000).  Automotive Technology Workbook (3rd ed.).  Albany, NY: Delmar.

 

Gilles, T. (1999). Automotive Service Inspection, Maintenance, and Repair (1st ed.). Albany, NY: Delmar

 

Toboldt, W. K., & Johnson, L.  (1995).  Automotive Encyclopedia.  South Holland, IL: Goodheart-Willcox.

 

Webster, J., & Owen, C. E.   (2000).    Basic Automotive Service & Systems (2nd ed.).

           Albany, NY: Delmar.