Honda CR-V: HVAC (Heating, Ventilation, and Air Conditioning)
Honda CR-V (2006–2011) Service Manual / HVAC (Heating, Ventilation, and Air Conditioning)
Special Tools
-
Backprobe set
Component Location Index
- SERVICE VALVE (HIGH-PRESSURE SIDE)
- SERVICE VALVE (LOW-PRESSURE SIDE)
- EVAPORATOR CORE (Located-in the heater unit)
- RECEIVER/DRYER DESICCANT
- Replacement
- A/C CONDENSER
- Replacement
- Clutch Check
- Clutch Overhaul
- Thermal Protector Check
- Thermal Protector Replacement
- Relief Valve Replacement
- UNDER-HOOD FUSE/RELAY BOX
- RADIATOR FAN RELAY
- A/C CONDENSER FAN RELAY
- FAN CONTROL RELAY
- BLOWER MOTOR RELAY
- A/C COMPRESSOR CLUTCH RE
- A/C DIODE A
- A/C DIODE B
- A/C PRESSURE SENSOR
- A/C CONDENSER FAN
- RADIATOR FAN
- HEATER UNIT/CORE
- EVAPORATOR CORE (Located-in the heater unit)
- BLOWER UNIT
- RECIRCULATION CONTROL MOTOR
- DUST AND POLLEN FILTER
- MODE CONTROL MOTOR
- HVAC CONTROL UNIT
- POWER TRANSISTOR
- EVAPORATOR TEMPERATURE SENSOR
- AIR MIX CONTROL MOTOR
- A/C Service Tips and Precautions
- System Description
- DTC Troubleshooting
- Recirculation Control Motor Circuit Troubleshooting
- Radiator and A/C Condenser Fan Low Speed Circuit Troubleshooting
- A/C Condenser Fan High Speed Circuit Troubleshooting
- A/C Signal Circuit Troubleshooting
- Blower Unit Removal/Installation
- Evaporator Core Replacement
- Heater Unit/Core Replacement
- A/C Compressor Replacement
- Receiver/Dryer Desiccant Replacement
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A/C Service Tips and Precautions
WARNING
Compressed air mixed with the R-134a forms a
combustible vapor.
The vapor can burn or explode causing serious
injury.
Never use compressed air to pressure test
R-134a service equipment
System Description
The air conditioning system removes heat from the passenger compartment by
transferring heat from the ambient air
to the evaporator. The evaporator cools the air with the refrigerant that is
circula
DTC Troubleshooting
DTC indicator 1: An Open in the Air Mix
Control Motor Circuit
1. Start the engine.
2. Turn on the A/C, then set the temperature control
dial to Max Hot.
3. Turn the ignition switch OFF and then ON (
SEE MORE:
System Description
Electronic Control System
The functions of the fuel and emission control systems are managed by the
powertrain control module (PCM).
Self-diagnosis
The PCM detects a failure of a signal from a sensor or from another control
unit and stores a Temporary DTC or a DTC.
Depending on the failure, a DTC
Electronic Control System
Functional Diagram
The electronic control system consists of the powertrain control module (PCM),
sensors, and solenoid valves.
Shifting and lock-up are electronically controlled for comfortable driving under
all conditions.
The PCM receives input signals from the sensors, switches, and other co
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