Honda Civic Service Manual page 1394

Troubleshooting -'96 - 98 Models
Both heater and A/C do not work.
Check the No. 17 {7.5 A) fuse in the
underdash fuse/relay box, and the
No. 47 (7.5 A) fuse in the under
hood fuse/relay box.
R.phce the fuso{s), .nd rccheck.
Chack tor an open in the wi.e:
1. Remove the center dashboard
lower cover (see section 20),
a n d d i s c o n n e c t t h e h e a t e r
control panel 14P connector.
2. Torn the ignition switch ON {ll).
3. Measure the voltage between
t h e N o . 2 t e r m i n a l o f t h e
heater control panel 14P con-
nector and body ground.
Rcpair opGn in th€ wiro betwoon
the No. 17 tuse and the hoatcl
control panel.
ls there baftery voltage?
Check for an opon in the wiro:
1. Turn the ignition switch OFF.
2. Measure the voitage between
t h e N o . 3 t e r m i n a l o f t h e
heater control panel 14P con-
nector and body ground.
Rgprii open in th6 wira b€twacn
the No. il7 tui. and the heat.t
cont.ol p.nal.
ls there battery voltage?
Check foi an open in the wi.e:
Check for continuity between the
No. 10 terminal ot the heater con-
t r o l p a n e l 1 4 P c o n n e c t o r a n d
body ground.
Check lor an opon in tho wire
b€{w6on the hoator control oanel
and body ground. lI the wirc is
OK, check tor poor ground at
G401 .nd G4O2.
Check for looae wiaos or oool
connections at the hoater control
panol 14P connector. lf the con-
nactions dre good. 3ubstitute t
k n o w n - 9 o o d h e a t e r c o n t r o l
panel, and rech6ck. It tho symp-
t o m / i n d i c a t i o n 9 o e 3 . w r y ,
replace the original heatel con-
trol oanol.
Heater Control Panel
HEATER CONTROL PANEL 1,lP CONNECTOR
Wire side of female terminals
21 - 1 8