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Module 270201r — Air Conditioning System Operation

Practice questions for Air Conditioning System Operation.

In the Air Conditioning System Operation ILM, what is the correct statement about A/C operating modes (MAX, NORM, DEF)?

In the Air Conditioning System Operation ILM, what is the correct statement about blend and mode door operation?

In the Air Conditioning System Operation ILM, what is the correct statement about electronic vs cable actuators?

In the Air Conditioning System Operation ILM, what is the correct statement about pressure switch/sensor operation in control strategy?

In the Air Conditioning System Operation ILM, what is the correct statement about cycling clutch operation during normal use?

In the Air Conditioning System Operation ILM, what is the correct statement about automatic climate control feedback?

In the Air Conditioning System Operation ILM, what is the correct statement about humidity and fogging control?

In the Air Conditioning System Operation ILM, what is the correct statement about engine load and A/C cut-out conditions?

In the Air Conditioning System Operation ILM, what is the correct statement about idle-up and fan control with A/C?

In the Air Conditioning System Operation ILM, what is the correct statement about dual-zone and tri-zone systems?

In the Air Conditioning System Operation ILM, what is the correct statement about rear A/C units in vans/SUVs?

In the Air Conditioning System Operation ILM, what is the correct statement about diagnosing poor cooling at idle vs highway?

In the Air Conditioning System Operation ILM, what is the correct statement about interpreting gauge readings vs symptoms?

In the Air Conditioning System Operation ILM, what is the correct statement about performance tests (centre vent temperature)?

In the Air Conditioning System Operation ILM, what is the correct statement about air distribution complaints (floor/defrost only)?

In the Air Conditioning System Operation ILM, what is the correct statement about electrical controls (relays, fuses)?

In the Air Conditioning System Operation ILM, what is the correct statement about CAN-bus controlled HVAC modules?

In the Air Conditioning System Operation ILM, what is the correct statement about blend door actuator failures?

In the Air Conditioning System Operation ILM, what is the correct statement about reheat strategy in automatic control?

In the Air Conditioning System Operation ILM, what is the correct statement about solar sensors and in-car temp sensors?

In the Air Conditioning System Operation ILM, what is the correct statement about odor and moisture issues (evap drain)?

In the Air Conditioning System Operation ILM, what is the correct statement about compressor noise vs clutch noise?

In the Air Conditioning System Operation ILM, what is the correct statement about intermittent A/C function (loose connections)?

In the Air Conditioning System Operation ILM, what is the correct statement about frozen evaporator causes?

In the Air Conditioning System Operation ILM, what is the correct statement about heater stuck on / no A/C feel?

In the Air Conditioning System Operation ILM, what is the correct statement about diagnosing compressor not engaging?

In the Air Conditioning System Operation ILM, what is the correct statement about using scan tools to read HVAC codes?

In the Air Conditioning System Operation ILM, what is the correct statement about calibration of HVAC actuators?

In the Air Conditioning System Operation ILM, what is the correct statement about customer usage patterns and perceived faults?

In the Air Conditioning System Operation ILM, what is the correct statement about proper test conditions for A/C checks?

In the Air Conditioning System Operation ILM, what is the correct statement about effects of low charge on operation?

In the Air Conditioning System Operation ILM, what is the correct statement about overcharge symptoms?

In the Air Conditioning System Operation ILM, what is the correct statement about condenser fan not running?

In the Air Conditioning System Operation ILM, what is the correct statement about integration with engine cooling system?

In the Air Conditioning System Operation ILM, what is the correct statement about rear defogger vs A/C use for visibility?

In the Air Conditioning System Operation ILM, what is the correct statement about parts opportunities (actuators, control heads)?

In the Air Conditioning System Operation ILM, what is the correct statement about retrofit or replacement of control panels?