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 MANUALSHONDA2009S2000 BASEREPAIR AND DIAGNOSISHEATING, VENTILATION & A/C (HVAC)HVAC CONTROL SYSTEMSHEATING/AIR CONDITIONING
2009 Honda S2000 Base
Heating/Air Conditioning
2009 Honda S2000 BaseSECTION Heating/Air Conditioning
- Component Location Index
- A/C Service Tips and Precautions
- A/C System Inspection
- A/C Refrigerant Oil Replacement
- A/C Line Replacement
- General Troubleshooting Information
- DTC Troubleshooting Index
- Symptom Troubleshooting Index
- System Description
- Circuit Diagram
- DTC Troubleshooting
- Recirculation Control Motor Circuit Troubleshooting
- HVAC Control Power and Ground Circuit Troubleshooting
- A/C Condenser Fan Circuit Troubleshooting
- Radiator and A/C Condenser Fan Common Circuit Troubleshooting
- A/C Compressor Clutch Circuit Troubleshooting
- A/C Pressure Switch Circuit Troubleshooting
- Evaporator Temperature Sensor Test
- HVAC Control Unit Removal/ Installation
- Blower/Evaporator Unit Removal/Installation
- Blower/Evaporator Unit Component Replacement
- Expansion Valve Replacement
- Heater Unit/Core Replacement
- A/C Compressor Replacement
- A/C Compressor Clutch Check
- A/C Compressor Clutch Overhaul
- A/C Compressor Thermal Protector Replacement
- A/C Compressor Relief Valve Replacement
- A/C Condenser Replacement
- Refrigerant Recovery
- System Evacuation
- System Charging
- Refrigerant Leak Check
- A/C System Noise Check
- A/C System Test
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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.