Hvac (Heating, Ventilation, And Air Conditioning) - Honda Civic 2002-2003 Service Manual

HVAC (Heating, Ventilation, and Air Conditioning)
Heating and Air Conditioning
Dust and Pollen Filter
Special Tools ................................ 21-2 Replacement ............................ 21-39
Component Location Index ........ 21-3 Blower Unit Removal and
AlC
Service Tips and Installation ................................ 21-39
Precautions ............................... 21-6 Blower Unit Components
AlC
Refrigerant Oil Replacement ............................ 21-41
Replacement ............................ 21-6 Evaporator Core
General Troubleshooting
Replacement ............................ 21-42
Information ............................... 21-8 *Heater Unit/Core
DTC Troubleshooting Index ....... 21-9 Replacement ............................ 21-43
Symptom Troubleshooting
Heater Valve Cable
Index ......................................... 21-10 Adjustment ............................... 21-46
System Description ..................... 21-11 Compressor Replacement .......... 21-47
Circuit Diagram ............................ 21-14 Compressor Clutch Check .......... 21-48
DTC Troubleshooting .................. 21-16 Compressor Clutch Overhaul ..... 21-49
Recirculation Control Motor
Compressor Thermal Protector
Circuit Troubleshooting .......... 21-25
Replacement ............................ 21-51
Heater Control Power and Ground Compressor Relief Valve
Circuits Troubleshooting ........ 21-27 Replacement ............................ 21-51
Condenser Fan Circuit Condenser Replacement ............ 21-52
Troubleshooting ...................... 21-28 Refrigerant Recovery .................. 21-53
Radiator and Condenser Fans System Evacuation ...................... 21-54
Common Circuit
System Charging ......................... 21-55
Troubleshooting ...................... 21-29
Refrigerant Leak Test .................. 21-56
Compressor Clutch Circuit
AlC
System Tests ........................ 21-57
Troubleshooting ...................... 21-30
AlC
Pressure Switch Circuit
Troubleshooting ...................... 21-32
Air Mix Control Motor
Test and Replacement ............. 21-34
Mode Control Motor
Test and Replacement ............. 21-35
Recirculation Control Motor
Test and Replacement ............. 21-36
Evaporator Temperature Sensor
Replacement and Test ............. 21-37
Power Transistor Test ................. 21-38
Heater Control Panel and
Push Switch Assembly
Removal and Installation ........ 21-38