Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSNISSAN-DATSUN2014NV3500 HD S, VAN CARGOREPAIR AND DIAGNOSISHEATING, VENTILATION & A/C (HVAC)HVAC CONTROL SYSTEMSHEATER & AIR CONDITIONING CONTROL SYSTEM (AUTOMATIC AIR CONDITIONER)
2014 Nissan-Datsun NV3500 HD S, Van Cargo
Heater & Air Conditioning Control System (Automatic Air Conditioner)
2014 Nissan-Datsun NV3500 HD S, Van CargoSECTION Heater & Air Conditioning Control System (Automatic Air Conditioner)
- DTC Index
- Precaution
- Preparation
- System Description
- Component Parts
- System
- Front Automatic Air Conditioning System
- FRONT AUTOMATIC AIR CONDITIONING SYSTEM: System Diagram
- FRONT AUTOMATIC AIR CONDITIONING SYSTEM: System Description
- FRONT AUTOMATIC AIR CONDITIONING SYSTEM: Air Flow Control
- FRONT AUTOMATIC AIR CONDITIONING SYSTEM: Air Inlet Control
- FRONT AUTOMATIC AIR CONDITIONING SYSTEM: Air Outlet Control
- FRONT AUTOMATIC AIR CONDITIONING SYSTEM: Compressor Control
- FRONT AUTOMATIC AIR CONDITIONING SYSTEM: Door Control
- FRONT AUTOMATIC AIR CONDITIONING SYSTEM: Temperature Control
- FRONT AUTOMATIC AIR CONDITIONING SYSTEM: Fail-safe
- Rear Air Conditioning System
- Front Automatic Air Conditioning System
- Operation
- Diagnosis System (HVAC)
- Ecu Diagnosis Information
- Wiring Diagram
- Basic Inspection
- DTC/Circuit Diagnosis
- DTC U1000: Can Comm Circuit
- DTC U1010: Control Unit (Can)
- DTC B2578, B2579: In-Vehicle Sensor
- DTC B257B, B257C: Ambient Sensor
- DTC B2581, B2582: Intake Sensor
- DTC B2630, B2631: SUNLOAD Sensor
- DTC B2632, B2633: Front Air Mix Door Motor (Driver Side)
- DTC B2634, B2635: Front Air Mix Door Motor (Passenger Side)
- DTC B2636, B2637, B2638, B2639, B2654, B2655: Front Mode Door Motor
- DTC B263D, B263E, B263F: Intake Door Motor
- DTC B27B0: Front Air Control
- Door Motor Communication Circuit
- Rear Air Mix Door Motor
- Rear Mode Door Motor
- Front Blower Motor
- Rear Blower Motor
- Water Valve Circuit
- Magnet Clutch
- Power Supply And Ground Circuit
- Symptom Diagnosis
- Unit Removal And Installation
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.