Honda Civic Service Manual page 1415

Heater Unit
Replacement
SRS components are located in this area. Review the
SRS component locations, precautions, and procedures
in the SRS section {24} before performing repairs or ser-
L
Disconnect the negative cable from the battery.
2.
Frcm under the hood, open the clamp, then discon-
nect the heater valve cable from the heater valve
arm. Turn the heater valve arm to the fully opened
position as shown.
When the engine is cool. drain the engine coolant
from the radiator (see section 10).
!@
Do not remove the radiator cap when
the engine is hot; the ongine coolant is under pres'
surg and could severely scald you.
CLAMP
HEATER VALVC CABLE
4.
Disconnect the heater hoses from the heater unit.
C A U T I O N : E n g i n e c o o l a n t w i l l d a m a g e p 8 i n t .
Ouickly rinse any spilled engins coolant from painted
su aces,
NOTE: Engine coolant will run out when the hoses
are disconnected; drain it into a clean drip pan.
5.
Remove the mounting nut from the heater unit.
NOTE: When removing the mounting nut, take care
n o t t o d a m a g e o r b e n d t h e f u e l l i n e s , t h e b r a k e
lines, etc.
I x 1 .25 mm
22 N.m {2.2 kgl.m, 16lblftl
21-39