EFI SYSTEM
-
Eleclroni4;
Control System
Circuit Opening Relay
To Stolln., Retty
IAWl
To
Igf>ition S�ch (ST11 10Iherl)
:���ne�el'r
S
T
A
To
fCU
ISTA)
Circuit
Opening
R,IIV
FI·1iI1
1
...
/0 Att
Flow
Meter)
,.,.
'0",
Fuel Pump Switch
tAir
Flow
Meter)
To fCU
IFC)
INSPECTION OF CIRCUIT OPENING RElAY
(AE wlo Air Flow Meter, AT and AWl
1 . INSPECT RElAY
CONTINUITY
(a) Using an ohmmeter. cheCk that there is continuity
between terminel,
STA
and E l .
(til
CheCk thai there i s continuity between terminl's B
and FC.
Icl Chack thai there is no continuity between terminals B
and FP
.
If continuity is not as specified. replllCe the relay.
2.
INSPECT RELAY OPERATION
Ill)
A
p
ply billery voltage across t6rminals
STA
and EI.
Ibl Using an ohmmeter. check that there is
continUity
between terminals
B IMId FP.
lei
Apply
ballery \loltage across terminals B lind
F
C
.
Icl)
Check that there is C()(Itinuity between terminal, B
Inc! FP
.
II
operation is not as specified. replace the relay,
