Section 349 (Automatic Air Conditioning)
WARNING: This page is about a different car, the 2004 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.
- Precautions
- Precautions For Supplemental Restraint System (SRS) "Air Bag" And "Seat Belt Pre-TENSIONER"
- Precautions for Working with HFC-134a (R-134a)
- Contaminated Refrigerant
- General Refrigerant Precautions
- Precautions for Leak Detection Dye
- A/C Identification Label
- Precautions for Refrigerant Connection
- Precautions For Servicing Compressor
- Precautions For Service Equipment
- Wiring Diagrams and Trouble Diagnosis
- Preparation
- Refrigeration System
- Lubricant
- Air Conditioner Control
- Description of Air conditioner LAN Control System
- System Construction
- Description of Control System
- Control Operation
- Notes
- Display Screen
- Auto Switch
- Temperature Switch (Temperature Control) (Driver Side)
- Temperature Switch (Temperature Control) (Passenger Side)
- RECIRCULATION (Rec) Switch
- Fresh (FRE) Switch
- Defroster (Def) Switch
- Rear Window Defogger Switch
- Off Switch
- A/C Switch
- Mode Switch
- Fan Control Switch
- Dual Switch (With Left And Right Ventilation Temperature Separate Control System)
- Fail-safe Function
- Discharge Air Flow
- System Description
- CAN Communication System Description
- Trouble Diagnosis
- Consult-II
- How to Perform Trouble Diagnosis for Quick and Accurate Repair
- Component Parts and Harness Connector Location
- Schematic
- Wiring Diagrams
- Auto Amp. Terminals and Reference Value
- A/C System Self-diagnosis Function
- Description
- Function Confirmation Procedure
- 1. Enter Self-Diagnostic Mode
- 2. Self-Diagnosis Step 2: Sensor Circuits Are Checked For Open Or Short Circuit
- 3. Check Operation Of Temperature Switch
- 4. Check To Return Self-Diagnosis Step 2
- 5. Self-Diagnosis Step 3: Mode Door And Intake Door Positions Are Checked
- 6. Step 4: Check Operation Of Each Actuator
- 7. Check Actuators
- 8. Self-Diagnosis Step 5: Temperature Of Each Sensor Is Checked
- 9. Check Ambient Sensor
- 10. Check In-Vehicle Sensor
- 11. Check Intake Sensor
- 12. Check Can Communication Error
- 13. Check Malfunctioning Sensor
- 14. Check Malfunctioning Door Motor Position Switch
- Auxiliary Mechanism: Temperature Setting Trimmer
- Auxiliary Mechanism: Foot Position Setting Trimmer
- Auxiliary Mechanism: Inlet Port Memory Function
- Operational Check
- Power Supply and Ground Circuit for Auto Amp.
- LAN System Circuit
- Notes
- Diagnostic Procedure For LAN Circuit
- 1. Check Power Supply For Unified Meter And A/C Amp. Side
- 2. Check Signal For Unified Meter And A/C Amp. Side
- 3. Check Power Supply For Motor Side
- 4. Check Signal For Motor Side
- 5. Check Motor Ground Circuit
- 6. Check Motor Operation
- 7. Check Mode Door Motor Operation
- 8. Check Air Mix Door Motor Operation
- 9. Check Intake Door Motor Operation
- 10. Check Air Mix Door Motor Operation
- Mode Door Motor Circuit
- Air Mix Door Motor Circuit
- Air Mix Door Motor PBR Circuit
- Intake Door Motor Circuit
- Blower Motor Circuit
- Magnet Clutch Circuit
- Notes
- Inspection Flow
- System Description
- Diagnostic Procedure For Magnet Clutch
- Notes
- 1. Check Intake Sensor Circuit
- 2. Perform Auto Active Test
- 3. Check Circuit Continuity Between IPDM E/R And Compressor
- 4. Check Magnet Clutch Circuit
- 5. Check BCM Input (Compressor On) Signal
- 6. Check Circuit Continuity Between BCM And Unified Meter And A/C Amp.
- 7. Check Voltage For Unified Meter And A/C Amp. (Compressor On Signal)
- 8. Check Refrigerant Pressure Sensor
- 9. Check BCM Input (Fan On) Signal
- 10. Check Circuit Continuity Between BCM And Unified Meter And A/C Amp.
- 11. Check Voltage For Unified Meter And A/C Amp. (Fan On Signal)
- 12. Check Can Communication
- Component Inspection
- Insufficient Cooling
- Notes
- Inspection Flow
- Performance Test Diagnoses
- Performance Chart
- 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
- Self-diagnosis
- Memory Function
- Ambient Sensor Circuit
- In-Vehicle Sensor Circuit
- Sunload Sensor Circuit
- Intake Sensor Circuit
- Auto Amp
- Ambient Sensor
- In-Vehicle Sensor
- SUNLOAD Sensor
- Intake Sensor
- Blower Unit
- Blower Motor
- Intake Door Motor
- In-Cabin MICROFILTER
- Heater & Cooling Unit Assembly
- Heater Core
- Mode Door Motor
- Air Mix Door Motor
- Fan Control Amplifier
- Ducts And Grilles
- Refrigerant Lines
- HFC-134a (R-134a) Service Procedure
- Removal and Installation for Compressor
- Removal and Installation for Compressor Clutch
- Removal and Installation for Low-pressure Flexible Hose
- Removal and Installation for High-pressure Flexible Hose
- Removal and Installation for High-pressure Pipe
- Removal and Installation for Refrigerant Pressure Sensor
- Removal and Installation for Condenser
- Removal and Installation for Evaporator
- Removal and Installation for Expansion Valve
- Checking for Refrigerant Leaks
- Checking System for Leaks Using the Fluorescent Leak Detector
- Dye Injection
- Electronic Refrigerant Leak Detector
- Service Data And Specifications (SDS)