AST 102 - Electrical Systems I
Credit Hours: 4
Billable Contact Hours: 5
Prerequisites: RDG 090 and MATH 090 or qualifying scores on accepted placement tests.
Corequisite: AST 101 .
Session Cycle: FL
This course focuses on introducing the student to automotive electrical/electronic systems which includes basic theories, electrical/electronic components, wiring and circuit diagrams, circuit protection, switches, relays, solenoids and automotive battery fundamentals. This course also focuses on the use of test equipment such as digital multimeters, test lights, jumper wires and logic probes used to diagnose basic electrical/electronic faults.
Notes: Applied Science and Engineering Technology Division
Theory Hours: 45
Lab Hours: 30
Learning Outcomes:
1. Demonstrate electrical system operation, diagnosis, and repair procedures utilized in the automotive industry.
a) Research applicable vehicle and service information, vehicle service history, service precautions, and technical service bulletins.
b) Demonstrate knowledge of electrical/electronic series, parallel, and series-parallel circuits using principles of electricity (Ohm’s Law).
c) Demonstrate proper use of a digital multimeter (DMM) when measuring source voltage, voltage drop (including grounds), current flow and resistance.
d) Demonstrate knowledge of the causes and effects from shorts, grounds, opens, and resistence problems in electrical/electronic circuits.
e) Check operation of electrical circuits with a test light.
f) Check operation of electrical circuits with fused jumper wires.
g) Use wiring diagrams during the diagnosis (troubleshooting) of electrical/electronic circuit problems.
h) Diagnose the cause(s) of excessive key-off battery drain (parasitic draw); determine necessary action.
i) Inspect and test fusible links, circuit breakers, and fuses; determine necessary action.
j) Inspect and test switches, connectors, relays, solenoid solid state devices, and wires of electrical/electronic circuits; determine necessary action.
k) Replace electrical connectors and terminal ends.
l) Repair wiring harness.
m) Perform solder repair of electrical wiring.
n) Check electrical/electronic circuit waveforms, interpret readings and determine needed repairs.
o) Repair CAN/BUS wiring harness.
Applies to Automotive Service Technology, A.A.S. Automotive Service Technology, Certificate Outcomes A, B, C, D, E, and F.
2. Understand and demonstrate battery operation, diagnosis and service.
a) Perform battery state-of-charge test; determine necessary action.
b) Confirm proper battery capacity for vehicle application; perform battery capacity test; determing necessary action.
c) Maintain or restore electronic memory functions.
d) Inspect and clean battery; fill battery cells; check battery cables, connectors, clamps, and hold-downs.
e) Perform slow/fast battery charge according to manufacturer’s recommendations.
f) Jump-start vehicle using jumper cables and a booster battery or an auxiliary power supply.
g) Identify high-voltage circuits of electric or hybrid electric vehicle and related safety precautions.
h) Identify electronic modules, security systems, radios, and other accessories that require reinitialization or code entry after reconnecting vehicle battery.
i) Identify hybrid vehicle auxiliary (12v) battery service, repair, and test procedures.
Applies to Automotive Service Technology, A.A.S. Automotive Service Technology, Certificate Outcomes A, B, C, D, E, and F.
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