Honda Civic Service Manual page 973

Wipers/Washers
Control Unit Input Test (cont'dl
5. Reconnect the connectors, and make these input tests at the connector.
. l f a n y t e s t i n d i c a t e s a p r o b l e m , f i n d a n d c o r r e c t t h e c a u s e , t h e n r e c h e c k t h e s y s t e m .
. l f a l l t h e i n p u t t e s t s p r o v e O K , t h e m u l t i p l e x c o n t r o l u n i t m u s t b e f a u l t y . R e p l a c e t h e u n d e r - d a s h f u s e / r e l a y b o x
assembly.
Cavity
Wire
Test condition
Test: Desired result Possible cause if result is not obtained
J 4
BLK
U n d e r a l l
conditlons
C h e c k f o r v o l t a g e t o g r o u n d :
. P o o r g r o u n d ( G 5 0 1 )
T h e r e s h o u l d b e 1 V o r l e s s .
. A n o D e n i n t h e w i r e
Y6 BLK U n d e r a l l
c o n d i t i o n s
Check for voltage to ground:
. Poor ground (G502)
T h e r e s h o u l d b e 1 V o r l e s s .
. A n o D e n i n t h e w i r e
B I
WHTiBLU
lgnition switch ON
{ l l ) a n d w a s h e r
switch ON
Check for voltage to ground:
There should be battery
vortage.
Blown No. 20 (20A) fuse in the
under-dash fuse/relay box
Faulty wiper/washer switch
An open in the wire
E'0
BLU/RED
lgnition switch ON
( l l ) a n d w i p e r
switch OFF (wiper
motor stopped)
Check for voltage to ground:
There should be battery
voltage.
Blown No. 20 (20A) fuse in the
under-dash fuse/relay box
Faulty wiper/washer switch
F a u l t y w i n d s h i e l d w i p e r m o t o r
An open in the wire
G 7
BLUA/VHT
lgnition switch ON
( l l ) a n d w i p e r s i n
p a r k p o s i t i o n
Check for voltage to ground:
There should be battery
voltage.
B l o w n N o . 2 0 ( 2 0 A ) f u s e i n t h e
under-dash fuse/relay box
F a u l t y w i n d s h i e l d w i p e r m o t o r
An ooen in the wire
x1
B L U / B L K
l g n i t i o n s w i t c h O N
( l l ) a n d w i p e r
switch in INT
Check for voltage to ground:
There should be battery
voltage.
B l o w n N o . 2 0 ( 2 0 A ) f u s e i n t h e
under-dash fuse/relay box
Faulty wiper/washer switch
An oDen in the wire
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