Daihatsu F300 Service Manual page 1420

EFISYSTEM
MAIN RELAY
ACC
~
Fuse Main relay
IG,o-- EFI No.2
CD
IG2
"'"
Fuse
@ @
EFI No.1
Fusible link
/
r-'
Battery
r
'
'
.L
~
Inspection of EFI main relay
1. Check of main relay operation
Turn ON the ignition switch. Check to see if you can hear
a relay operating sound or
if
you can feel operating vibra-
tions when a screwdriver or the like is brought into contact
with
the relay.
CAUTION:
• The relay may become very hot during the operation.
Hence,
do
not touch the relay by your hand.
2. Inspection of relay continuity
( 1) Remove the main relay from relay box.
(2) Check that there is continuity between the terminals
CD
and®.
(3) Check that there is no continuity between the terminals
®and@.
(4) Check that there is no continuity between the terminals
CD
and @ and also between the terminals
CD
and @.
(5) Check that there is no continuity between the terminals
® and @ and also between the terminals ® and @.
If the continuity test results do not conform to specifications,
replace the relay.
3. Inspection of relay operation
(1) Apply the battery voltage across the terminals (j) and
®.
(2} Check that there is continuity between the terminals®
and@.
If the operation test results do not conform to specifications,
replace the relay.
EF-52
•
ECiJ
.~
@
L___. @
~
•
•
WFE90-EF110
•