Honda CR-V: Heater Unit/Core Replacement
SRS components are located in this area. Review the SRS component locations, and the precautions and procedures before doing repairs or service.
1. Make sure you have anti-theft codes for the audio system and the navigation system (if equipped).
2. Make sure the ignition is OFF, then disconnect the negative cable from the battery.
3. Disconnect the A/C line from the evaporator core.
4. When the engine is cool, drain the engine coolant from the radiator.
5. From under the hood, slide the hose clamps (A) back. Disconnect the inlet heater hose (B) and the outlet heater hose (C) from the heater unit. Note the orientation of the hose.
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.
6. Remove the mounting nut from the heater unit.
Take care not to damage or bend the fuel lines or brake lines, etc.
7. Remove the dashboard.
8. Disconnect the connector (A) from the blower motor. Remove the wire harness clip (B).
9. Disconnect the connector (A) from the recirculation control motor.
10. Disconnect the connectors (A) from the mode control motor, the evaporator temperature sensor, and the power transistor. Remove the wire harness clips (B).
11. Disconnect the connectors (A) from the air mix control motor and A/C wire harness. Remove the connector clip (B), the wire harness clips (C), and the wire harness (D).
12. Remove the clip (A) and the duct (B). Side the clamp, then remove the drain hose (C). Remove the mounting bolt, mounting nuts, and blower-heater unit (D).
13. Remove the self-tapping screws and the driver's duct (A). Remove the self-tapping screws, the heater core cover (B), the grommet (C), and carefully pull out the heater core (D).
14. Install the heater core and the evaporator core in the reverse order of removal.
15. Install the heater unit in the reverse order of removal, and note these items:
- Do not interchange the inlet and outlet heater hoses, and install the hose clamps securely.
- Refill the cooling system with engine coolant.
- Make sure that there is no coolant leakage.
- Make sure that there is no air leakage.
- Refer to evaporator core replacement.
- Enter anti-theft codes for the audio system and navigation system (if equipped).
- Set the clock (without Navigation system).
READ NEXT:
A/C Compressor
Replacement
NOTE: Do not install an A/C compressor into a system
unless you are completely sure that the system is free
of contamination. Installing the A/C compressor into a
contaminated system can result in pre
Receiver/Dryer Desiccant
Replacement
NOTE: Install the receiver/dryer as quickly as possible
to prevent the system from absorbing moisture from
the air.
1. Remove the A/C condenser.
2. Remove the cap (A) from the bottom of the A/C
cond
SEE MORE:
DTC 31-3x ("x" can be 0 thru 9 or A thru F):
Short to Another Wire or Decreased
Resistance in Driver's Side Airbag Inflator
Special Tools Required
SRS inflator simulator 07SAZ-TB4011A
SRS simulator lead L 070AZ-SNAA300
SRS short canceller 070AZ-SAA0100
NOTE: Before doing this troubleshooting procedure, review SRS Precautions and
Procedures.
1. Erase the DTC memory.
2. Turn the ignition switch ON (II), and check t
Important Maintenance Precautions
If you have the required service
done but do not reset the display, or
reset the display without doing the
service, the system will not show the
correct maintenance intervals. This
can lead to seriousmechanical
problems because you will no longer
have an accurate record of when
maint
