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 and Installation
1. Driver's Dashboard Lower Cover - Remove
2. VSA Off Switch - Remove
Square type
Circle type
3. All Removed Parts - Install
Install the parts in the reverse order of removal.
Test
1. VSA Off Switch - Test
On the switch side, check for continuity between the connecto
Inspection
1. Synchro Sleeve and Hub - Inspect
Inspect the gear teeth on all synchro hubs and synchro sleeves for wear
(rounded off
corners)
Install each synchro hub (A) in its mating synchro sleeve (B), and check
for free
movement. Make sure to match the three sets of longer teeth (C) (12