Subaru 1600 Service Manual page 195

IGOFF
Check if
resistance between
check connector's
ground terminal for
control (B/R) and
body is below
lOll.
Check if
resistance between
check connector's
ground terminal for
drive (B) and
body is below
lOll.
YES
IGON
Check if
voltage between
check connector's
ECM power supply
terminal (B/Y) and
ground terminal
for drive (B) is
over IOV.
Check if
voltage between
check connector's
warning lamp terminal
(R/L) and ground
terminal for drive
(B) is over 7V
Replace ECS lamp_
EMISSION CONTROL SYSTEM
NO
NO
Repair open
harness.
Repair open
harness.
rt
-'
h
NO Check power
>----11
source, IG relay,
and harness.
NO
NO
Replace ECM.
Repair open
warning lamp
circuit harness.
Check if
voltage between
check connector's
carb selection terminal
(LIB) and ground
terminal for control
(B/R) is below
2V.
IGOFF
Check if
resistance between
check connector's
carb selection terminal
(LIB) and ground
terminal for control
(B/R) is below
lOll.
YES
Repair shorted carb
selection (LIB) circuit
harness.
Check if
voltage between
check connector's
carb selection terminal
(LIB) and ground
terminal for control
(B/R) is over
2V.
YES
Repair open carb
selection (LIB) circuit
harness.
NO
NO
Replace ECM.
Replace ECM.