Section 385 (Manual HVAC System)
WARNING: This page is about a different car, the 2004 Nissan Titan. 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
- Trouble Diagnosis
- Consult-II
- How To Perform Trouble Diagnosis For Quick And Accurate Repair
- Component Parts And Harness Connector Location
- Schematic
- Wiring Diagram ---MTC-A/C---
- Front Air Control Terminals And Reference Value
- A/C System Self-Diagnosis Function (With NAVI Only)
- Power Supply And Ground Circuit For Front Air Control
- Mode Door Motor Circuit
- Symptom:
- Inspection Flow
- System Description
- Component Description
- Diagnostic Procedure For Mode Door Motor
- 1. Check Result From Front Air Control Self-Diagnosis Or Proceed From Symptom Table
- 2. Check Result From Front Air Control Self-Diagnosis
- 3. Check Power Supply And Ground Circuits For Mode Door Motor
- 4. Check PBR Reference Signal Voltage
- 5. Check PBR Reference Voltage Circuit Between Mode Door And Front Air Control
- 6. Check PBR Ground Reference Circuit
- 7. Check PBR Feedback Signal
- 8. Check PBR Feedback Circuit
- Air Mix Door Motor Circuit
- Symptom:
- Inspection Flow
- System Description
- Air Mix Door Control Specification
- Diagnostic Procedure For Air Mix Door Motor
- 1. Check Result From Front Air Control Self-Diagnosis Or Proceed From Symptom Table
- 2. Check Result From Front Air Control Self-Diagnosis
- 3. Check Power Supply Circuits For Air Mix Door Motor (Front)
- 4. Check PBR Reference Signal Voltage
- 5. Check PBR Reference Voltage Circuit Between Air Mix Door Motor (Front) And Front Air Control
- 6. Check PBR Ground Reference Circuit
- 7. Check PBR Feedback Signal
- 8. Check PBR Feedback Circuit
- Intake Door Motor Circuit
- Defroster Door Motor Circuit
- Symptom:
- Inspection Flow
- System Description
- Component Description
- Diagnostic Procedure For Defroster Door Motor
- 1. Check Result From Front Air Control Self-Diagnosis Or Proceed From Symptom Table
- 2. Check Result From Front Air Control Self-Diagnosis
- 3. Check Power Supply Circuit For Defroster Door Motor
- 4. Check PBR Reference Signal Voltage
- 5. Check PBR Reference Voltage Circuit Between Defroster Door Motor And Front Air Control
- 6. Check PBR Reference Voltage Circuit
- 7. Check PBR Feedback Signal
- 8. Check PBR Feedback Circuit
- Blower Motor Circuit
- Symptom:
- Inspection Flow
- System Description
- Component Description
- Diagnostic Procedure For Blower Motor
- Notes
- 1. Diagnostic Procedure
- 2. Check Fuses
- 3. Check Blower Motor Power Supply
- 4. Check Blower Motor Relay
- 5. Check Blower Motor Power From Relay To Blower Motor
- 6. Check Blower Motor Relay (Coil Side) Power Supply Circuit
- 7. Check Blower Motor Relay (Coil Side) Ground Circuit
- 8. Replace Fuse
- 9. Check Blower Motor Power Supply Circuit For Short
- 10. Check Blower Motor Relay (Switch Side) Power Supply Circuit
- 11. Check Blower Motor
- 12. Check Blower Switch
- 13. Check Blower Motor Resistor
- 14. Check Blower Switch Circuit
- 15. Check Blower Motor Ground Circuit To Blower Motor Resistor
- 16. Check Blower Switch
- Component Inspection
- Magnet Clutch Circuit
- Symptom:
- 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 Front Air Control
- 7. Check Voltage For Front Air Control (Compressor On Signal)
- 8. Check Refrigerant Pressure Sensor
- 9. Check BCM Input (Fan On) Signal
- 10. Check Circuit Continuity Between BCM And Front Air Control
- 11. Check Voltage For Front Air Control (Fan On Signal)
- 12. Check Can Communication
- Component Inspection
- Insufficient Cooling
- Performance Test Diagnoses
- Notes
- 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
- Water Valve Circuit
- Intake Sensor Circuit
- Removal & Installation
- Control Unit
- Intake Sensor
- Blower Motor
- In-Cabin MICROFILTER
- Heater & Cooling Unit Assembly
- Heater Core
- Defroster Door Motor
- Intake Door Motor
- Mode Door Motor
- Air Mix Door Motor
- Front Blower Motor Resistor
- Ducts And Grilles
- Components
- Removal And Installation For Compressor
- Removal And Installation For Compressor Clutch
- Refrigerant Lines
- Removal And Installation For Refrigerant Pressure Sensor
- Removal And Installation For Condenser
- Removal And Installation For Front Evaporator
- Removal And Installation For Front Expansion Valve
- Servicing
- Service Data And Specifications (SDS)