Honda HR-V: HVAC Unit Removal and Installation
Removal & Installation
SRS components are located in this area. Review the SRS component locations -
Refer to: SRS Component
Location Index (KA/KC) and the precautions and procedures before doing repairs or
service.
1. 12 Volt Battery Terminal - Disconnect
2. A/C Refrigerant - Recover
3. Engine Coolant - Drain
4. A/C Lines, Heater Hose, and Heater Unit Mounting Nut - Remove
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- Remove the bolt (B)
- Disconnect the A/C Lines (C)
- Disconnect the heater hose (D).
NOTE:
- Engine coolant will run out when the hoses are disconnected; drain it
into a clean drip pan. Be sure
not to let coolant spill on the electrical parts or the painted surfaces. If
any coolant spills, rinse it off
immediately.
- Note the layout of the hoses.
- Remove the mounting nut (E).
NOTE: Take care not to damage or bend the fuel lines or the brake lines.
5. Expansion Valve - Remove
6. Dashboard/Steering Hanger Beam - Remove
7. HVAC Unit Assembly - Remove
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- Disconnect the drain hose (B)
- Remove the duct (C)
- Remove the HVAC unit assembly (D).
8. All Removed Parts - Install
- Install the parts in the reverse order of removal, and note these items:
- New O-rings should be used at each fitting. Prior to installation,
apply a thin coat of the same
refrigerant oil used in the A/C compressor. Be sure to use the correct
O-rings for HFC-134a
(R-134a) to avoid leakage.
- Do not interchange the inlet and outlet heater hoses, and install
the hose clamps securely.
- Make sure that there is no coolant leakage.
- Make sure that there is no air leakage.
- Make sure that there is no refrigerant leakage.
- Do the 12 volt battery terminal reconnection procedure.
- Refill the radiator with engine coolant, and bleed the air from the
cooling system.
- Charge the system with the specified amount of R-134a refrigerant.
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Removal & Installation
SRS components are located in this area. Review the SRS component locations -
Refer to: SRS Component
Location Index (KA/KC) and the precautions and procedures before doing
Removal & Installation
1. Front Bumper - Remove
2. Outside Air Temperature Sensor - Remove
Disconnect the connector (A)
Lift the tab (B) to release the lock, then remove the outside air
tempe
DTC TROUBLESHOOTING
DTC INDICATOR 2 : HVAC CONTROL UNIT INTERNAL ERROR
1. Problem verification:
Clear the history DTCs.
Do the Self-Diagnostic Function.
Checking for DTCs.
Does the RECIRCULATION
SEE MORE:
Removal & Installation
NOTE:
When working on electronic components, make sure the work area is clean
and dust free.
Make sure your hands are clean and free of oils and grease.
Eject the CD before disconnecting the audio unit to prevent damaging the
CD player's load mechanism.
If you are
DTC (MICU)
NOTE : If you are troubleshooting multiple DTCs, be sure to follow the
instructions in B-CAN System
Diagnosis Test Mode A - Refer to: Body Electrical Troubleshooting - B-CAN System
Diagnosis Test Mode A - Initial Communication and DTC Checks.
1. Determine possible failure area (windshi