Subaru XT 1988 Service Manual page 356

FUEL INJECTION SYSTEM 2-7
TROUBLE CODE (12): STARTER SWITCH
Control unit
W
24
BW [MT], BY (AT]
BW
®FwITi
(Black)~
Fusible link
L2-1l95
Fig. 79
Check if trouble code is
NO
Check terminals of control
i
outputted in D·check
unit.
mode.
(See page 56.!
(Turn ignition switch OFF.
+
YES
~
YES
Replace fuse.
I
Turn ignition switch OFF
Check if fuse blows.
lengine off).
~
NO
~
Check if resistance between
Disconnect test mode
ignition switch terminal (R)
~
connector.
and terminal 24 of
Repair harness.
I
•
control unit is less than
10n.
Turn ignition switch ON
~
YES
(engine off).
•
Replece ignition switch.
Check if voltage across
terminal 24 (BW or BY) of
NO
-( Turn ignition switch OFF.
control unit and the body
is less than 2 V.
~
• YES
Disconnect ignition switch
Dilconnect crank angle
connector.
senIor connector.
•
• Turn ignition switch ON
(
Turn ignition switch ON.
(engine offl.
~
•
Check if voltage across
Check if voltage across
terminal 24 of con·
NO
terminal 24 of con- NO
~
trol unit and the body is
1 0 - trol unit and the body is
greater than 4 V.
less than 2V.
• YES
~
YES
Replace control unit.
Repair harness.
Replace ignition switch.
~
73