Honda EP3 Service Manual page 328

42.
4 3 .
44.
4 5 .
46.
Reconnect ECI\4 connector E {31P).
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 ) .
Measure voltage between body ground and ECM
connector terminals 42 and 43 individually.
Wire side of female terminals
ls there battery voltage?
YES Go to step 51.
NO Go to step 45.
T u r n t h e i g n i t i o n s w i t c h O F F .
R e m o v e t h e P G M ' F l m a i n r e l a y 1 {A)
, A
4 7 . 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 ) .
ECM CONNECTOR A {31PI
4 9 .
5 0 .
48. Measure voltage between PGM-FI main relay 1 4P
connector terminal No. 2 and body ground.
PGM.FI MAIN RELAY 1
4P CONNECTOR
ls there battery voltage?
YES Go to step 49.
N O R e p a i r o p e n i n t h e w i r e b e t w e e n t h e N o . 6
E C U { E C M ) ( 1 5 A } f u s e a n d t h e P G M - F l m a i n
r e l a y 1 . !
T u r n t h e i g n i t i o n s w i t c h O F F .
Check for continuity between PGM-Fl main relay 1
4P connector terminal No. 1 and ECM connector
t e r m i n a l s 4 2 a n d 4 3 i n d i v i d u a l l y .
PGM.FI MAIN RELAY I
ilP CONNECTOR
ls there continuity?
Y E S R e p l a c e t h e P G M - F l m a i n r e l a y 1 . 1
NO Repair open in the wire between the PGM-FI
m a i n r e l a y
' 1
a n d t h e E C M ( A 2 , A 3 ) . 1
{cont'd}
Wire side of temale terminals
IGPl (YEL/BLK)
W i r e s i d e o f f e m a l e t e r m i n a l s
1 1 - 1 0 3