A/C Controller

WARNING: This page is about a different car, the 2011 Nissan Leaf. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Identifying A/C Controller Components

Courtesy of NISSAN MOTOR CO., U.S.A.

AUTO A/C SYSTEM OPERATION CHART

AUTO switch	If the switch is pressed while the A/C is stopped, the switch indicator lamp turns ON, "AUTO" appears on the display, and the A/C system status is as shown below. Air inlet: Automatic control Air outlet: Automatic control Air flow: Automatic control Compressor: Automatic control If the switch is pressed while the A/C is operating and "AUTO" is OFF, the switch indicator lamp turns ON, "AUTO" appears on the display, and all control switches to automatic control. NOTE: When air outlet or air flow is manually operated while "AUTO" is indicated on display, "AUTO" indication turns OFF. However, automatic control continues for other functions than air outlet or air flow.
A/C indicator	While the A/C-Heater Timer (Climate Ctrl. Timer) operates, the indicator flashes. If the A/C-Heater Timer (Climate Ctrl. Timer) is set to activate, the indicator illuminates.
MODE switch	When each MODE switch is pressed, air outlet is switched and VENT, B/L, FOOT, or D/F can be selected manually. NOTE: Air outlet can be changed when air conditioner system is in the OFF position. When MODE switch is pressed while "AUTO" is indicated on display, air outlet automatic control is released ("AUTO" turns OFF).
DEF switch	DEF mode (switch indicator lamp) changes between ON <==> OFF each time DEF switch is pressed When switch is pressed while air conditioning system is in the ON position When DEF mode turns ON, air conditioning system becomes the following status. Air outlet: DEF Air flow: Automatic control (If an air flow other than AUTO is selected before pressing DEF switch, blower fan is manual control.) Air inlet: Fresh air intake A/C switch: ON When DEF mode turns OFF, air conditioner system state returns to the previous state before DEF mode was selected. When switch is pressed while air conditioner system is in the OFF position Air conditioning system turns ON and changes to the following status. Air outlet: DEF Air flow: Automatic control Air inlet: Fresh air intake A/C switch: ON When DEF mode turns OFF, entire air conditioner system turns OFF. NOTE: When DEF mode is turned ON while "AUTO" is indicated on display, "AUTO" indication turns OFF. However, airflow automatic control continues. (This operation is excluded when airflow is set before DEF switch is pressed.)
Temperature control switches	Operation of this switch sets the temperature setting in increments of 0.5°C (1°F) within the range of 18.0°C (60°F) to 32.0°C (90°F). : Increase temperature setting. : Decrease temperature setting. NOTE: When A/C system is OFF, the set temperature can be selected only while the temperature setting is shown on the display (several seconds after MODE switch is pressed).
Rear window defogger switch	Refer to "SYSTEM DESCRIPTION ".
ON/OFF switch	If the switch is pressed while the A/C is operating, the compressor and blower fan motor stop, and the outlets and inlets are set as shown below. Air outlet: FOOT Air inlet: Fresh air intake (during automatic inlet control) If the switch is pressed while A/C is stopped, the A/C turns ON with the same settings as before it was stopped.
A/C switch	If the A/C switch is pressed while the compressor is ON, "A/C OFF" appears in the A/C portion of the display, the A/C switch indicator lamp turns OFF (orange), and the compressor turns OFF. When the A/C switch is pressed again, "A/C ON" appears in the A/C display, the A/C switch indicator lamp (orange) turns ON, and the compressor turns ON. If the switch is operated while "AUTO" is shown on the display, automatic compressor control is cancelled (AUTO turns OFF). NOTE: When blower fan motor is OFF, compressor control cannot be activated.
REC switch	When the REC switch is pressed, the inlet changes to REC (recirculation) and the REC indicator lamp turns ON. If the REC switch is pressed and held for approximately 2 seconds or more when the inlet is REC (recirculation), the REC and FRE indicator lamps (orange) flash twice, and the inlet switches to automatic control. During automatic control, the air inlet status (FRE, REC) is indicated by the indicator lamp. If the switch is operated while "AUTO" is shown on the display, automatic intake control is cancelled (AUTO turns OFF). NOTE: Air inlet can be changed when air conditioning system is in OFF status.
Fan control switch	Air flow can be manually set within the range of speeds 1 - 7 using the fan control dial. +: Increase air flow. -: Decrease air flow. NOTE: When this switch is operated while A/C system is OFF, A/C system turns ON. If the switch is operated while "AUTO" is shown on the display, automatic air flow control is cancelled ("AUTO" turns OFF).
FRE switch	When the FRE switch is pressed, the inlet changes to FRE (fresh air intake) and the FRE indicator lamp turns ON. If the FRE switch is pressed and held for approximately 2 seconds or more when the inlet is FRE (fresh air intake), the REC and FRE indicator lamps (orange) flash twice, and the inlet switches to automatic control. During automatic control, the air inlet status (FRE, REC) is indicated by the indicator lamp. If the switch is operated while "AUTO" is shown on the display, automatic intake control is cancelled (AUTO turns OFF). NOTE: Air inlet can be changed when air conditioning system is in OFF status.