Section 27 (Heater & Air Conditioning Control System)
WARNING: This page is about a different car, the 2008 Infiniti QX56. However, it is still accessible from the selected car via links, so may be relevant.
- Basic Inspection
- Function Diagnosis
- Function Information
- Refrigeration System
- Automatic Air Conditioner System
- Control System Diagram
- Control System Description
- Control Operation
- Display Screen
- Auto Switch
- Temperature Control Dial (Driver)
- Temperature Control Dial (Passenger)
- RECIRCULATION ( ) Switch
- Defroster ( ) Switch
- Rear Window Defogger Switch
- Off Switch
- A/C Switch
- Mode Switch
- Front Blower Control Switches
- Rear Temperature Control Dial (Front/Rear)
- Rear Mode Switches (Front/Rear)
- Rear Blower Control Dial (Front)
- Rear Blower Control Dial (Rear)
- Magnet Clutch Control
- Discharge Air Flow (Front)
- Discharge Air Flow (Rear)
- Switches And Their Control Function (Front)
- Switches And Their Control Function (Rear)
- Can Communication System
- Diagnosis System (HVAC)
- Diagnosis System (BCM)
- Self-Diagnosis Function
- Component Diagnosis
- Mode Door Motor
- Air Mix Door Motor
- Intake Door Motor
- Defroster Door Motor Circuit
- Blower Motor Control System
- System Description
- Front Blower Motor Component Function Check
- Front Blower Motor Diagnosis Procedure
- Front Blower Motor Component Inspection
- Rear Blower Motor Description
- Rear Blower motor Component Function Check
- Rear Air Control (Front) Diagnosis Procedure #1
- Rear Air Control (Rear) Diagnosis Procedure #2
- Rear Blower Motor Component Inspection
- Rear Air Control System
- Magnet Clutch
- Water Valve Circuit
- Ambient Sensor
- In-Vehicle Sensor
- Optical Sensor
- Intake Sensor
- Power Supply And Ground Circuit For Controller
- Ecu Diagnosis
- Symptom Diagnosis
- Air Conditioner Control
- Insufficient Cooling
- Component Function Check
- Performance Test Diagnoses
- Performance Chart
- Test Reading
- Trouble Diagnoses for Unusual Pressure
- Notes
- Both High- and Low-pressure Sides are Too High
- High-pressure Side is Too High and Low-pressure Side is Too Low
- High-pressure Side is Too Low and Low-pressure Side is Too High
- Both High- and Low-pressure Sides are Too Low
- Low-pressure Side Sometimes Becomes Negative
- Low-pressure Side Becomes Negative
- Insufficient Heating
- Noise
- Memory Function Does Not Operate
- Precaution