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 MANUALSHONDA2002CIVIC SIREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 167 (HEATING/AIR CONDITIONING)
2002 Honda Civic Si
Section 167 (Heating/Air Conditioning)
2002 Honda Civic SiSECTION Section 167 (Heating/Air Conditioning)
WARNING: This page is about a different car, the 2006 Honda Odyssey and 2005 Honda Odyssey. However, it is still accessible from the selected car via links, so may be relevant.
- Component Location Index
- A/C Service Tips and Precautions
- A/C Refrigerant Oil Replacement
- General Troubleshooting Information
- DTC Troubleshooting Index
- Symptom Troubleshooting Index
- System Description
- Circuit Diagram
- DTC
- DTC Troubleshooting
- DTC B1231 or DTC indicator 7: An Open in the Evaporator Temperature Sensor Circuit
- DTC B1232 or DTC indicator 8: A Short in the Evaporator Temperature Sensor Circuit
- DTC B1233 or DTC indicator 1: An Open in the Air Mix Control Motor Circuit
- DTC B1234 or DTC indicator 2: A Short in the Air Mix Control Motor Circuit
- DTC B1235 or DTC indicator 3: A Problem in the Air Mix Control Linkage, Door, or Motor
- DTC B1239 or DTC indicator 4: An Open or Short in the Mode Control Motor Circuit
- DTC B1240 or DTC indicator 5: A Problem in the Mode Control Linkage, Doors, or Motor
- DTC B1241 or DTC indicator 6: A Problem in the Blower Motor Circuit
- DTC B1244 or DTC indicator 9: An Open in the Rear Air Mix Control Motor Circuit
- DTC B1245 or DTC indicator 10: A Short in the Rear Air Mix Control Motor Circuit
- DTC B1246 or DTC indicator 11: A Problem in the Rear Air Mix Control Linkage, Door, or Motor
- DTC B1221 or DTC indicator 12: An Open in the Rear Mode Control Motor Circuit
- DTC B1247 or DTC indicator 12 or 13: An Open or Short in the Rear Mode Control Motor Circuit
- DTC B1248 or DTC indicator 14: A Problem in the Rear Mode Control Linkage, Doors, or Motor
- DTC B1223 or DTC indicator 15: A Problem in the Rear Blower Motor Circuit
- DTC B1202: A/C Control Panel Internal Error
- DTC B1205: A/C Control Panel Lost Communication with Gauge Control Module (VSP/NE message); DTC B1206: A/C Control Panel Lost Communication with Gauge Control Module (ENGTEMP message); DTC B1207: A/C Control Panel Lost Communication with Gauge Control Module (ILLUMI message)
- Recirculation Control Motor Circuit Troubleshooting
- A/C Control Power and Ground Circuit Troubleshooting
- Radiator and A/C Condenser Fan Low Speed Circuit Troubleshooting
- A/C Condenser Fan High Speed Circuit Troubleshooting
- Radiator and A/C Condenser Fan High Speed Circuit Troubleshooting
- A/C Compressor Clutch Circuit Troubleshooting
- A/C Pressure Switch Circuit Troubleshooting
- Evaporator Temperature Sensor Test
- Evaporator Temperature Sensor Replacement
- Power Transistor Test
- Air Mix Control Motor Test
- Air Mix Control Motor Replacement
- Mode Control Motor Test
- Mode Control Motor Replacement
- Recirculation Control Motor Test
- Recirculation Control Motor Replacement
- A/C Control Panel Removal and Installation
- A/C Control Panel Bulb Replacement
- Blower Unit Removal and Installation
- Blower Unit Component Replacement
- Blower Motor Replacement
- Evaporator Core & Expansion Valve Replacement
- Heater Unit/Core Replacement
- Heater Valve Cable Adjustment
- A/C Compressor Replacement
- A/C Compressor Clutch Check
- A/C Compressor Clutch Overhaul
- A/C Compressor Relief Valve Replacement
- A/C Condenser Replacement
- Receiver/Dryer Desiccant Replacement
- Refrigerant Recovery
- System Evacuation
- System Charging
- Refrigerant Leak Test
- 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.