2010 Nissan Altima - Heater & Air Conditioning Control System (Section HAC) (164 pages)
Download Heater & Air Conditioning Control System (Section HAC)
Manual Description
HEATER & AIR CONDITIONING CONTROL SYSTEM, cOUPE : Wiring Diagram - Air Conditioner Control, sEDAN : Wiring Diagram - Air Conditioner Control, trouble Diagnosis For Abnormal Pressure 87.
MEMORY FUNCTION DOES NOT OPERATE 96, (SRS) "AIR BAG" and "SEAT BELT PRE-TENSIONER" 97, trouble Diagnosis For Abnormal Pressure 155, (SRS) "AIR BAG" and "SEAT BELT PRE-TENSIONER" 163.
Verify the symptom with operational check, repair or replace specific parts, the purpose of the operational check is to confirm that system operates properly, engine running and normal operation temperature.
Turn blower control dial clockwise, blower should operate low speed, continue turning blower control dial clockwise, and continue checking blower speeds until all speeds, if OK, continue with next check, press each mode switch press DEF (.
Each mode position indicator should illuminate, confirm that discharge air comes out according to the air distribution table, confirm that the compressor clutch is engaged (audio or visual inspection) and intake door FRE, ) position when the DEF ( ) selected.
Intake door position is checked next step, (Discharge air and blower speed will depend on ambient, in-vehicle set temperatures, if all operational checks are OK (symptom can not be duplicated), refer to GI-37, "Work Flow" perform, tests as outlined to simulate driving conditions environment.
The trimmer compensates for differences in range of ±3°C (±6°F) between temperature setting (displayed digitally) and temperature felt by customer, operating procedures for this trimmer follows, turn blower control dial clockwise to set system auxiliary mode, display shows in auxiliary mechanism.
Turn temperature control dial (LH) as desired, a decimal point is not indicated display, negative value is displayed on LH temperature display, when battery cable is disconnected or battery voltage is below 10 V, trimmer operation is canceled.
Stop position mode can be set, press the OFF switch for each mode desired, when ignition switch is turned from OFF to ON, inlet port can be set AUTO manual, not memorized (AUTO control) (initial state).
When battery cable is disconnected or battery voltage is below 10 V, memory function canceled, function set becomes that initial condition, ambient sensor (sedan location shown, Coupe location similar), a/C relay (internal IPDM E/R).
Ambient sensor (sedan location shown, couple location similar), air mix door motor LH M128, air mix door motor RH M129, "Diagnosis Procedure" (QR25DE) or EC-1524, "Diagnosis Procedure" (VQ35DE).
The refrigerant flows in the standard pattern, that is, through the compressor, the condenser with liquid tank, through the evaporator, and back to the compressor, controlled by an externally equalized expansion valve, located inside evaporator case, the refrigerant system is protected against excessively high or low pressures by the refrigerant pressure sensor, located on the condenser.
The ECM then ceases to supply power to the A/C relay which disengages and stops compressor when, pressure on the high pressure side (as detected by refrigerant pressure sensor) over approximately 2,746, kPa 398 psi), or below approximately 120 kPa (1, the refrigerant system is also protected by a pressure relief valve, located in the rear head compressor.
When the pressure of refrigerant in the system increases to an abnormal level [more than 3,727 kPa (38 kg, psi)], the release port on the pressure relief valve automatically opens releases refrigerant into, the control system consists of input sensors, switches, front air control and outputs.
Manual Description
HEATER & AIR CONDITIONING CONTROL SYSTEM, cOUPE : Wiring Diagram - Air Conditioner Control, sEDAN : Wiring Diagram - Air Conditioner Control, trouble Diagnosis For Abnormal Pressure 87.
MEMORY FUNCTION DOES NOT OPERATE 96, (SRS) "AIR BAG" and "SEAT BELT PRE-TENSIONER" 97, trouble Diagnosis For Abnormal Pressure 155, (SRS) "AIR BAG" and "SEAT BELT PRE-TENSIONER" 163.
Verify the symptom with operational check, repair or replace specific parts, the purpose of the operational check is to confirm that system operates properly, engine running and normal operation temperature.
Turn blower control dial clockwise, blower should operate low speed, continue turning blower control dial clockwise, and continue checking blower speeds until all speeds, if OK, continue with next check, press each mode switch press DEF (.
Each mode position indicator should illuminate, confirm that discharge air comes out according to the air distribution table, confirm that the compressor clutch is engaged (audio or visual inspection) and intake door FRE, ) position when the DEF ( ) selected.
Intake door position is checked next step, (Discharge air and blower speed will depend on ambient, in-vehicle set temperatures, if all operational checks are OK (symptom can not be duplicated), refer to GI-37, "Work Flow" perform, tests as outlined to simulate driving conditions environment.
The trimmer compensates for differences in range of ±3°C (±6°F) between temperature setting (displayed digitally) and temperature felt by customer, operating procedures for this trimmer follows, turn blower control dial clockwise to set system auxiliary mode, display shows in auxiliary mechanism.
Turn temperature control dial (LH) as desired, a decimal point is not indicated display, negative value is displayed on LH temperature display, when battery cable is disconnected or battery voltage is below 10 V, trimmer operation is canceled.
Stop position mode can be set, press the OFF switch for each mode desired, when ignition switch is turned from OFF to ON, inlet port can be set AUTO manual, not memorized (AUTO control) (initial state).
When battery cable is disconnected or battery voltage is below 10 V, memory function canceled, function set becomes that initial condition, ambient sensor (sedan location shown, Coupe location similar), a/C relay (internal IPDM E/R).
Ambient sensor (sedan location shown, couple location similar), air mix door motor LH M128, air mix door motor RH M129, "Diagnosis Procedure" (QR25DE) or EC-1524, "Diagnosis Procedure" (VQ35DE).
The refrigerant flows in the standard pattern, that is, through the compressor, the condenser with liquid tank, through the evaporator, and back to the compressor, controlled by an externally equalized expansion valve, located inside evaporator case, the refrigerant system is protected against excessively high or low pressures by the refrigerant pressure sensor, located on the condenser.
The ECM then ceases to supply power to the A/C relay which disengages and stops compressor when, pressure on the high pressure side (as detected by refrigerant pressure sensor) over approximately 2,746, kPa 398 psi), or below approximately 120 kPa (1, the refrigerant system is also protected by a pressure relief valve, located in the rear head compressor.
When the pressure of refrigerant in the system increases to an abnormal level [more than 3,727 kPa (38 kg, psi)], the release port on the pressure relief valve automatically opens releases refrigerant into, the control system consists of input sensors, switches, front air control and outputs.
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