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:
Engine Compression Inspection
NOTE: After this inspection, you must reset the
powertrain control module (PCM), otherwise the PCM
will continue to stop the injectors from functioning.
Select PCM reset using the Honda Diagnostic System
(HDS).
1. Warm up the engine to normal operating
temperature (cooling fan comes on).
2. Turn t
DTC P1116: ECT Sensor 1 Performance
Problem
NOTE:
Before you troubleshoot, record all freeze data and any on-board
snapshot, and review the general troubleshooting information.
If DTC P0111 is stored at the same time as DTC P1116,
troubleshoot DTC P0111 first, then recheck for DTC
P1116.
1. Check for poor connections or loose terminal
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