A. General Electrical/Electronic System Diagnosis (13 questions)

1. Check electrical circuits with a test light; determine needed repairs.

2. Check voltages and voltage drops in electrical/electronic circuits; interpret readings and determine needed repairs.

3. Check current flow in electrical/electronic circuits and components; interpret readings and determine needed repairs.

4. Check continuity and resistances in electrical/electronic circuits and components; interpret readings and determine needed repairs.

5. Check electronic circuit waveforms; interpret readings and determine needed repairs.

6. Use scan-tool data to diagnose electronic systems; interpret readings and determine needed repairs.

7. Check electrical/electronic circuits with appropriate jumper wires; determine needed repairs.

8. Find shorts, grounds, opens, and resistance problems in electrical/ electronic circuits; determine needed repairs.

9. Measure and diagnose the cause(s) of abnormal key-off battery drain (parasitic draw); determine needed repairs.

10. Inspect, test, and replace fusible links, circuit breakers, fuses, diodes, and current limiting devices.

11. Read and interpret electrical schematic diagrams and symbols.

12. Diagnose failures in the data bus communications network; determine needed repairs.

B. Battery Diagnosis and Service (4 questions)

1. Perform battery state-of-charge test; determine needed service.

2. Perform battery capacity (load, high-rate discharge) test; determine needed service.

3. Maintain or restore electronic memory functions.

4. Inspect, clean, fill, or replace battery.

5. Perform slow/fast battery charge in accordance with manufacturer’s recommendations.

6. Inspect, clean, and repair or replace battery cables, connectors, clamps and holddowns.

7. Jump start a vehicle with jumper cables and a booster battery or auxiliary power supply.

C. Starting System Diagnosis and Repair (5 questions)

1. Perform starter current draw test; determine needed repairs.

2. Perform starter circuit voltage drop tests; determine needed repairs.

3. Inspect, test, and repair or replace switches, connectors, and wires of starter control circuits.

4. Inspect, test, and replace starter relays and solenoids.

5. Remove and replace starter.

6. Differentiate between electrical and engine mechanical problems that cause a slow crank or no crank condition.

D. Charging System Diagnosis and Repair (5 questions)

The name “generator” to refer to the component commonly known as an “alternator”. Both terms are used

interchangeably in the tests.

1. Diagnose charging system problems that cause an undercharge, a no-charge, or an overcharge condition.

2. Inspect, adjust, and replace generator (alternator) drive belts, pulleys, and tensioners.

3. Perform charging system voltage output test; determine needed repairs.

4. Perform charging system current output test; determine needed repairs.

5. Inspect, and test generator (alternator) control circuit; determine needed repairs.

6. Perform charging circuit voltage drop tests; determine needed repairs.

7. Inspect, repair, or replace connectors and wires of charging circuits.

8. Remove, inspect, and replace generator (alternator).

E. Lighting Systems Diagnosis and Repair (6 questions)

1. Headlights, Parking Lights, Taillights, Dash Lights, and Courtesy Lights (3 questions)

1. Diagnose the cause of brighter than normal, intermittent, dim, continuous or no operation of headlights.

2. Inspect, test, and repair daytime running light systems.

3. Inspect, replace, and aim headlights/bulbs including high-intensity discharge systems (HID), and auxiliary lights (fog lights/driving lights).

4. Inspect, test, and repair or replace headlight and dimmer switches, relays, control units, transformers, sensors, sockets, connectors, and wires of headlight circuits.

5. Diagnose the cause of brighter than normal, intermittent, dim, continuous or no operation of parking lights, taillights, and/or auxiliary lights (fog lights/driving lights).

6. Inspect, test, and repair or replace switches, relays, bulbs, LEDs, sockets, connectors, wires, and controllers of parking light, taillight circuits, and auxiliary light circuits (fog lights/driving lights).

7. Diagnose the cause of intermittent, dim, no lights, continuous operation, or no brightness control of instrument lighting circuits.

8. Inspect, test, and repair or replace switches, relays, bulbs, LEDs, sockets, connectors, wires, and controllers of instrument lighting circuits.

9. Diagnose the cause of intermittent, dim, continuous or no operation of courtesy lights (dome, map, vanity, cargo, trunk, and hood light).

10. Inspect, test, and repair or replace switches, relays, bulbs, sockets, connectors, wires, and controllers of courtesy light (dome, map, vanity, cargo, trunk, and hood light) circuits.

2. Stoplights, Turn Signals, Hazard Lights, and Back-up Lights (3 questions)

1. Diagnose the cause of intermittent, dim, continuous or no operation of stoplights (brake lights).

2. Inspect, test, adjust, and repair or replace switch, bulbs, LEDs, sockets, connectors, wires, and controllers of stoplight (brake light) circuits.

3. Diagnose the cause of no turn signal and/or hazard lights, or lights with no flash on one or both sides.

4. Inspect, test, and repair or replace switches, flasher units, bulbs, sockets, connectors, wires, and controllers of turn signal and hazard light circuits.

5. Diagnose the cause of intermittent, dim, improper, continuous or no operation of back-up lights.

6. Inspect, test, and repair or replace switch, bulbs, sockets, connectors, wires, and controllers of back-up light circuits.

7. Inspect, test, repair or replace trailer wiring harness and connector.

F. Gauges, Warning Devices, and Driver Information Systems Diagnosis and Repair (6 questions)

1. Diagnose the cause of, high, low, intermittent or no gauge readings.

2. Inspect, test, and repair or replace gauges, gauge sending units, connectors, wires and controllers of gauge circuits.

3. Diagnose the cause(s) of high, low, intermittent, or no readings on electronic instrument clusters.

4. Inspect, test, repair or replace sensors, sending units, connectors, wires, and controllers of electronic instrument circuits.

5. Diagnose the cause of constant, intermittent, or no operation of warning light, indicator lights, and other driver information systems.

6. Inspect, test, and repair or replace bulbs, sockets, connectors, wires, electronic components, and controllers of warning light, indicator light and driver information system circuits.

7. Diagnose the cause of constant, intermittent, or no operation of audible warning devices.

8. Inspect, test, and repair or replace switches, relays, sensors, timers, electronic components, controllers, connectors, and wires of audible warning device circuits.

G. Horn and Wiper/Washer Diagnosis and Repair (3 questions)

1. Diagnose the cause of constant, intermittent, or no operation of horn(s).

2. Inspect, test, and repair or replace horn(s), horn relay, horn button (switch), connectors, wires, and controllers of horn circuits.

3. Diagnose the cause of wiper problems including constant operation, intermittent operation, poor speed control, no parking, or no operation of wiper.

4. Inspect, test, and replace intermittent (pulsing) wiper controls.

5. Inspect, test, and replace wiper motor, switches, relays, controllers, connections, and wires of wiper circuits.

6. Diagnose the cause of constant, intermittent, or no operation of window washer.

7. Inspect, test, and repair or replace washer motor, pump assembly, relays, switches, connectors, and wires of washer circuits.

H. Accessories Diagnosis and Repair (8 questions)

1. Body (4 questions)

1. Diagnose the cause of slow, intermittent, or no operation of power windows.

2. Inspect, test, and repair or replace regulators (linkages), switches, controllers, relays, motors, connectors, and wires of power window circuits.

3. Diagnose the cause of slow, intermittent, or no operation of power seat, heated seat, and driver memory controls.

4. Inspect, test, adjust, and repair or replace power seat gear box, cables, switches, controllers, sensors, relays, solenoids, motors, connectors, and wires of power seat circuits, heated seat circuits, and driver memory controls.

5. Diagnose the cause of constant, poor, intermittent, or no operation of rear window defogger.

6. Inspect, test, and repair or replace switches, relays, timers, controllers, window grid, connectors, and wires of rear window defogger circuits.

7. Diagnose the cause of constant, poor, intermittent, or no operation of electric door lock and hatch/trunk lock. 

8. Inspect, test, and repair or replace switches, relays, controllers, actuators/solenoids, connectors, and wires of electric door lock/hatch/trunk circuits.

9. Diagnose the cause of poor, intermittent, or no operation of keyless and remote lock/unlock devices.

10. Inspect, test, and repair or replace components, connectors, controllers, and wires of keyless and remote lock/unlock device circuits; reprogram system.

11. Diagnose the cause of slow, intermittent, or no operation of electrical sunroof/moonroof, convertible/retractable top, power sliding doors, and power liftgate.

12. Inspect, test, and repair or replace motors, switches, controllers, relays, connectors, and wires of electrically-operated sunroof/moonroof, convertible/retractable top, power sliding doors, and power liftgate circuits.

13. Diagnose the cause of poor, intermittent, or no operation of electrically operated/heated mirrors and driver memory controls.

14. Inspect, test and repair or replace motors, heated mirror grids, switches, controllers, sensors, relays, connectors, and wires of electrically operated/heated mirror circuits and driver memory controls.

2. Miscellaneous (4 questions)

1. Diagnose the cause of poor sound quality, noisy, erratic, intermittent, or no operation of the audio system, remove and reinstall audio system component.

2. Inspect, test, and repair or replace speakers, amplifiers, remote controls, antennas, leads, grounds, connectors, and wires of sound system circuits.

3. Inspect, test, and repair or replace switches, relays, motor, connectors, and wires of power antenna circuits.

4. Inspect, test, and repair or replace case, fuse, connectors, relays, and wires of auxiliary power outlet circuits.

5. Inspect, test, and repair or replace clock, connectors, and wires of clock circuits.

6. Diagnose the cause of unregulated, intermittent, or no operation of cruise control.

7. Inspect, test, adjust, and repair or replace regulator, servo, hoses, switches, relays, electronic controller, speed sensors, connectors, and wires of cruise control circuits.

8. Diagnose the cause of false, intermittent, or no operation of anti-theft systems.

9. Inspect, test, and repair or replace components, controllers, switches, relays, connectors, sensors, and wires of anti-theft system circuits.

10. Diagnose the causes(s) of the supplemental restraint/airbag warning light staying on or flashing.

11. Disarm and enable the airbag system for vehicle service following manufacturers’ recommended procedures.

12. Inspect, test, repair or replace the airbag(s), controller, sensors, connectors, ribbon wire/clock spring, and wires of the airbag system circuit(s).