Honda Civic. Manual — part 744

Fig. 54: Identifying Air Mix Control Motor Connector, Connector Clip
And Wire Harness
Courtesy of AMERICAN HONDA MOTOR CO., INC.

12. Remove the mounting bolt, mounting nuts, and blower-heater unit (A).

Fig. 55: Identifying Blower-Heater Unit Mounting Bolts (With Torque
Specifications)
Courtesy of AMERICAN HONDA MOTOR CO., INC.

13. Remove the self-tapping screws, the heater core cover (A), the grommet (B),

and carefully pull out the heater core (C).

2008 Honda Civic EX

2006-08 HVAC Heating - Civic (All Except Hybrid)

Fig. 56: Identifying Heater Core Cover, Grommet And Heater Core
Courtesy of AMERICAN HONDA MOTOR CO., INC.

14. Install the heater 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 (see COOLANT
REPLACEMENT ).

Make sure that there is no coolant leakage.

Make sure that there is no air leakage.

Enter the anti-theft code for the audio or navigation system, then enter the
audio presets.

Set the clock.

2008 Honda Civic EX

2006-08 HVAC Heating - Civic (All Except Hybrid)

OBDII

MIL

P0106

5

MAP Circuit Range Or Performance

P0107

3

MAP Circuit Low Input

P0108

3

MAP Circuit High Input

P0111

10

IAT Sensor Circuit Range/Performance

P0112

10

IAT Sensor Circuit Low Input

P0113

10

IAT Sensor Circuit High Input

P0116

86

ECT Circuit Range Or Performance

P0117

6

ECT Circuit Low Input

P0118

6

ECT Circuit High Input

P0122

7

TP Sensor Circuit Low Input

P0123

7

TP Sensor Circuit High Input

P0131

1

Primary HO2S Circuit Low Voltage (Sensor 1)

P0132

1

Primary HO2S Circuit High Voltage (Sensor 1)

P0133

61

Primary HO2S Circuit Slow Response (Sensor 1)

P0135

41