Honda Civic Service Manual page 1404

Troubleshooting -'99 - 00 Models
Recirculation Control Motor (cont'd)
Frcm page 21-27
HEATER CONTROL PANEL 8P CONNECTOR
Check for a short to power in the
1. Turn the ignition switch ON {ll).
2. Disconnect the heater control
panel 8P connector.
3. Check for voltage between the
No.2 and No. 3 terminals ofthe
heater control panel 8P con,
nector and body ground indi
vidually.
R e p a i r 3 h o r t t o p o w e . i n t h e
wire{a) b.tween tho haetor con-
trol panel and the recirculation
Gontrol moto.. This short also
d a m a g o s t h e h e a t e . c o n t r o l
panel. Repair the short to power
b€tore .eplecing the h€ater con-
trol panel.
ls there any voltage?
Check to. a short to ground:
1. Turn the ignition switch OFF.
2- Check the same terminals for
continuity to ground.
Roprir lhon in tho wir.{s) b€tweo
the horter control panel and the
racircr alion conhol motoa.
Check for an open in the wires:
1 . D i s c o n n e c t t h e r e c i r c u l a t i o n
control motor 4P connector.
2. Check for continuity between
the following terminals of the
recirculation control motor 4P
connector and the heater con,
trol panel 8P connector.
8P: 4Pi
N o . 2 - N o . 2
N o . 3 - N o . 4
Repair open in ths wirolsl betw€€n
the heate. co.rkol panol and the
recirculation control motor .
Check lor loo3a wires or poot
conn€ctions at the hoater control
panel 8P connector and at the
aecirculation control motor ilP
connector, It tho connections are
good. substitut€ e known-good
heatei control panel, and aecheck.
lf th€ symptom/indication goes
away, replace the original hedter
contrcl Danel.
GRN/WHT
I
1
GRN/RED
RECIRCULATION CONTROL MOTOR
4P CONNECTOR
Wire side of female terminals
21-28