Subaru XT 1988 Service Manual page 344

FUEL INJECTION SYSTEM
2-7
III
~
Turn ignition switch ON (engine off).
Check if voltage across body and
NO
Check if voltage across body and
NO
terminal (R) of crank angle sensor
-
terminal 7 (R) of control unit can·
connector (body side) is greater than
nector is greater than 10 V.
10V.
YES
l
YES
Repair harness.
Check if voltage across body and
Check if voltage across body and
NO
terminal 8 (W) of control unit can·
NO
-
terminal (*8, **G) is greater than 4V'j
nectar is greater than 4V.
YES
~
YES
I , ••
Repair herness .
•
Check if voltage across body and
~
Check if voltage across body and
I
NO
terminal'7 (W) of control unit can·
NO
terminal (W) is greater than 4 V.
J
nectar is greater than 4 V.
YES
i
YES
[ Connect crank angle sensor can-
J
Repair harness.
nectar.
~
~
[
Disconnect 2-pole connector from
J
I
ignition coil power transistor.
I
Check if terminal is open or discon·
NO
J
Replace control unit.
J
J
l •
nected .
1
YES
l
Repair terminal or harness.
J
*.
l800ccmodel
**.
2700 cc model
61