Honda Civic Service Manual page 789

Heating and Air Conditioning
DTC Troubleshooting.(cont'd)
DTC 10: An Open or Short in the Mode
Control Motor Circuit
1. Test the mode control motor (see page 21-35).
ls the mode cottol motor OK?
YES Go to step 2.
NO Replace the mode control motor.I
Disconnect the mode control motor 10P connector.
D i s c o n n e c t h e a t e r c o n t r o l p a n e l c o n n e c t o r s A ( 1 4 P )
and B \22P1.
Check for continuity between body ground and
h e a t e r c o n t r o l p a n e l c o n n e c t o r A ( 1 4 P ) t e r m i n a l s
N o . 2 , 1 0 , a n d 1 1 i n d i v i d u a l l y , a n d b e t w e e n b o d y
g r o u n d a n d h e a t e r c o n t r o l p a n e l c o n n e c t o r B ( 2 2 P )
t e r m i n a l s N o .
' 1 7 ,
1 8 , 1 9 , a n d 2 0 i n d i v i d u a l l y .
HEATER CONTROL PANEL CONNECTOR A {14PI
2.
3 .
W i r e s i d e o l l e m a l e t e r m i n a l s
ls there continuity?
Y E S R e p a i r a n y s h o r t t o b o d y g r o u n d i n t h e
wire(s) between the heater control panel and the
mode control motor.l
NO Go to step 5.
HEATER CONTROL PANELCONNECTOR B {22P)
W i r e s i d e o f f e m a L e l e r m i n a l s
21-18
5 . T u r n t h e i g n i t i o n s w i t c h O N ( l l ) , a n d c h e c k t h e s a m e
t e r m i n a l s f o r v o l t a g e .
HEATEB CONTROL PANEL CONNECTOR A {14P)
Wire side of female terminal
HEATER CONTROL PANEL CONNECTOR B {22PI
3
5
X
6
t l
12 15 T6 1 1 1 8 t 9 2A 21 22
RED/YEL
WHT
Wire side of female terminals
ls there any voltage?
YES-. Repair any short to power in the wire(s)
between the heater control panel and the mode
control motor. This short may also damage the
heater control panel. Repair the short to power
before replacing the heater control panel.l
NO- Go to step 6.