AUTO 166: Automotive Electrical & Electronic Systems II

• A. General Electrical System Diagnosis 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 numbers. P-1 5. Diagnose electrical/electronic integrity of series, parallel and series-parallel circuits using principles of electricity (Ohm’s 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
• B. Battery Diagnosis and Service 1. Perform battery state-of-charge test; 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 functions. 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
• C. Starting System Diagnosis and Repair 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
• D. Charging System Diagnosis and Repair 1. Perform charging system output test; determine necessary action. P-1 2. Diagnose charging system for the cause of undercharge, no-charge, and overcharge 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
• E. Lighting Systems Diagnosis and Repair 1. Diagnose the cause of brighter than normal, intermittent, dim, or no light operation; 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 associated with high intensity discharge headlights. P-2
• F. Gauges, Warning Devices, and Driver Information Systems Diagnosis and Repair 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
• G. Horn and Wiper/Washer Diagnosis and Repair 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
• H. Accessories Diagnosis and Repair 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 electronic 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

Advanced Electrical and Electronic Systems Theory

1. Supplemental restraint systems inspection, diagnosis, service & repair
2. Navigation inspection, diagnosis, service & repair
3. Entertainment systems inspection, diagnosis, service & repair
4. Power windows/locks/seats/doors inspection, diagnosis, service & repair
5. Customizable body electronics inspection, diagnosis, service & repair
6. Multiplex systems inspection, diagnosis, service & repair
7. Advanced Driver-Assist Systems (ADAS) including
   1. Blind-Spot Monitoring
   2. Collision Mitigation Braking Systems
   3. Adaptive Cruise Control
   4. Lane-Keeping Assistance/Lane Departure Warning

Advanced Electrical and Electronic Systems

1. Supplemental restraint systems inspection, diagnosis, service & repair
2. Power windows/locks/seats/doors inspection, diagnosis, service & repair
3. Customizable body electronics inspection, diagnosis, service & repair
4. Multiplex systems inspection, diagnosis, service & repair
5. Advanced Driver-Assist Systems (ADAS) including
   1. Blind-Spot Monitoring
   2. Collision Mitigation Braking Systems
   3. Adaptive Cruise Control
   4. Lane-Keeping Assistance/Lane Departure Warning