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Home >> Infiniti >> 2014 >> Q50 Base, AWD >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Heater & Air Conditioning Control System (Except Hybrid) >> System Description >> Component Parts >> Automatic Air Conditioning System >> AUTOMATIC AIR CONDITIONING SYSTEM: Component Parts Location

AUTOMATIC AIR CONDITIONING SYSTEM: Component Parts Location

Fig 1: Automatic Air Conditioning System Components Location
G09162244Courtesy of NISSAN NORTH AMERICA, INC.
No. Component Function
(1) IPDM E/R A/C relay is integrated in IPDM E/R. IPDM E/R operates A/C relay when receiving A/C compressor request signal from ECM via CAN communication line.
Refer to "COMPONENT PARTS LOCATION " for detailed installation location.
(2) BCM BCM transmits key ID signal to A/C auto amp. via CAN communication line. Refer to "BODY CONTROL SYSTEM: COMPONENT PARTS LOCATION " for detailed installation location.
(3) Ambient sensor "AMBIENT SENSOR "
(4) Refrigerant pressure sensor "REFRIGERANT PRESSURE SENSOR "
(5) Chassis control module Chassis control module transmits key link signal and log-in permit signal to auto amp. via CAN communication line.
Refer to "COMPONENT PARTS LOCATION " for detailed installation location.
(6) ECM ECM, when receiving A/C ON signal and blower fan ON signal from A/C auto amp., transmits A/C compressor request signal to IPDM E/R via CAN communication line according to status of the engine and refrigerant pressure. ECM transmits engine coolant temperature signal to A/C auto amp. via CAN communication line.
Refer to "ENGINE CONTROL SYSTEM: COMPONENT PARTS LOCATION " for detailed installation location.
(7) Combination meter Combination meter transmits vehicle speed signal to A/C auto amp. via CAN communication line.
(8) Sunload sensor "SUNLOAD SENSOR "
(9) In-vehicle sensor "IN-VEHICLE SENSOR "
(10) Integral switch "INTEGRAL SWITCH "
(11) Display control unit Display control unit receives A/C switch operation signal from integral switch, and transmits it to A/C auto amp. via CAN communication line.
Display control unit transmits voice recognition signal and user information signal to A/C auto amp. via CAN communication line.
Display control unit receives A/C display signal from A/C auto amp. via CAN communication line, and transmits it to integral switch.
Refer to "COMPONENT PARTS LOCATION " for detailed installation location.
(12) Magnet clutch "COMPRESSOR: MAGNET CLUTCH "
(13) ECV (Electrical Control Valve) "COMPRESSOR: ECV (ELECTRICAL CONTROL VALVE) "
(14) Aspirator "HEATER & COOLING UNIT ASSEMBLY: ASPIRATOR "
(15) Air mix door motor (Driver side) "HEATER & COOLING UNIT ASSEMBLY: AIR MIX DOOR MOTOR (DRIVER SIDE) "
(16) Intake sensor "HEATER & COOLING UNIT ASSEMBLY: INTAKE SENSOR "
(17) Mode door motor "HEATER & COOLING UNIT ASSEMBLY: MODE DOOR MOTOR "
(18) Air mix door motor (Passenger side) "HEATER & COOLING UNIT ASSEMBLY: AIR MIX DOOR MOTOR (PASSENGER SIDE) "
(19) Intake door motor "BLOWER UNIT ASSEMBLY: INTAKE DOOR MOTOR "
(20) Blower motor "BLOWER UNIT ASSEMBLY: BLOWER MOTOR "
(21) A/C auto amp. "A/C AUTO AMP. "