A. A/C System Service, Diagnosis, and Repair (13 questions)

1. Identify system type and conduct performance test on the A/C system; determine needed repairs.

2. Diagnose A/C system problems indicated by system pressures and/or temperature readings; determine needed repairs.

3. Diagnose A/C system problems indicated by sight, sound, smell, and touch procedures; determine needed repairs.

4. Leak test A/C system; determine needed repairs.

5. Identify A/C system refrigerant and existing charge amount.

6. Evacuate A/C system.

7. Inspect A/C system components for contamination.

8. Charge A/C system with refrigerant (liquid or vapor).

9. Identify A/C system lubricant type and capacity.

10. Inspect and replace passenger compartment (cabin air, pollen) filter.

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

B. Refrigeration System Component Diagnosis and Repair (10 questions)

1. Compressor and Clutch (5 questions)

1. Diagnose A/C system problems that cause the protection devices (pressure, thermal, and electronic controls) to interrupt system operation; determine needed repairs.

2. Inspect, test, and replace A/C system pressure and thermal protection devices.

3. Inspect, adjust, and replace A/C compressor drive belts, pulleys and tensioners.

4. Inspect, test, service, and replace A/C compressor clutch components or assembly.

5. Identify required lubricant type; inspect and correct level in A/C compressor.

6. Inspect, test, service or replace A/C compressor.

7. Inspect, repair or replace A/C compressor mountings/fasteners.

2. Evaporator, Condenser, and Related Components (5 questions)

1. Inspect, repair, or replace A/C system mufflers, hoses, lines, filters, fittings, and seals.

2. Inspect A/C condenser for misdirected or restricted air flow.

3. Inspect, test, and replace A/C system condenser, mountings, and air seals.

4. Inspect and replace receiver/drier or accumulator/drier.

5. Inspect, test, and replace expansion valve(s).

6. Inspect and replace orifice tube(s).

7. Inspect, test, clean, or replace evaporator(s).

8. Inspect, clean and repair evaporator housing, and water drain.

9. Inspect, test, and replace evaporator pressure/temperature control systems and devices.

10. Identify, inspect, and replace A/C system service valves (gauge connections) and valve caps.

11. Inspect and replace A/C system high pressure relief device.

C. Heating and Engine Cooling Systems Diagnosis and Repair (4 questions)

1. Diagnose the cause of temperature control problems in the heater/ventilation system; determine needed repairs.

2. Diagnose window fogging problems; determine needed repairs.

3. Perform engine cooling system tests; determine needed repairs.

4. Inspect and replace engine cooling and heater system hoses and pipes.

5. Inspect, test, and replace radiator, pressure cap, coolant recovery system, and water pump.

6. Inspect, test, and replace thermostat, by‑pass, and housing.

7. Identify, inspect, recover coolant; flush, and refill system with proper coolant.

8. Inspect, test, and replace fan, (both electrical and mechanical), fan clutch, fan belts, fan shroud, and air dams.

9. Inspect, test, and replace heater coolant control valve (manual, vacuum, and electrical types) and auxillary coolant pump.

10. Inspect, flush, and replace heater core.

D. Operating Systems and Related Controls Diagnosis and Repair (19 questions)

1. Electrical (10 questions)

1. Diagnose the cause of failures in the electrical control system of heating, ventilating, and A/C systems; determine needed repairs.

2. Inspect, test, repair, and replace A/C‑heater blower motors, resistors, switches, relay/modules, wiring, and protection devices.

3. Inspect, test, repair, and replace A/C compressor clutch coil, relay/ modules, wiring, sensors, switches, diodes, and protection devices.

4. Inspect, test, repair, replace, and adjust A/C‑related engine control systems.

5. Inspect, test, repair, replace, and adjust load sensitive A/C compressor cut‑off systems.

6. Inspect, test, repair, and replace engine cooling/condenser fan motors, relays/modules, switches, sensors, wiring, and protection devices.

7. Inspect, test, adjust, repair and replace electric actuator motors, relays/ modules, switches, sensors, wiring, and protection devices (including dual/multi-zone systems).

8. Inspect, test, service, or replace heating, ventilating, and A/C control panel assemblies.

2. Vacuum/Mechanical (2 questions)

1. Diagnose the cause of failures in the vacuum and mechanical switches and controls of the heating, ventilating, and A/C systems; determine needed repairs.

2. Inspect, test, service, or replace heating, ventilating, and A/C control panel assemblies.

3. Inspect, test, adjust, and replace heating, ventilating, and A/C control cables and linkages.

4. Inspect, test, and replace heating, ventilating, and A/C vacuum actuators (diaphragms/motors) and hoses.

5. Identify, inspect, test, and replace heating, ventilating, and A/C vacuum reservoir, check valve, and restrictors.

6. Inspect, test, adjust, repair, or replace heating, ventilating, and A/C ducts, doors, and outlets (including dual/multi-zone systems).

3. Automatic and Semi‑Automatic Heating, Ventilating, and A/C Systems

(7 questions)

1. Diagnose temperature control system problems; determine needed repairs.

2. Diagnose blower system problems; determine needed repairs.

3. Diagnose air distribution system problems; determine needed repairs (including dual/multi-zone systems).

4. Diagnose compressor clutch control system; determine needed repairs.

5. Inspect, test, adjust or replace climate and blower control sensors.

6. Inspect, test, adjust, and replace door actuator(s).

7. Inspect, test, and replace heater water valve and controls.

8. Inspect, test, and replace electric and vacuum motors, solenoids, and switches.

9. Inspect, test, and replace Automatic Temperature Control (ATC) control panel and/or climate control computer (microprocessor/programmer).

10. Check and adjust calibration of Automatic Temperature Control (ATC) system.

11. Diagnose data communication issues that affect A/C system operation.

E. Refrigerant Recovery, Recycling, Handling and Retrofit (4 questions)

1. Maintain and verify correct operation of certified equipment.

2. Identify, and recover A/C system refrigerant.

3. Recycle or properly dispose of refrigerant.

4. Label and store refrigerant.

5. Test recycled refrigerant for non‑condensable gases.

6. Follow Federal and local guidelines for retrofit procedures.