Subaru 1600 Service Manual page 196

Check if
voltage between
check connector's
high-altitude signal
tenninal (G) and
ground tenninal for
drive (B) is
below 2V.
YES
Repair open high-altitude
signal (G) circuit harness,
or replace ECM.
Check if
voltage between
check connector's
high-altitude signal
tenninal (G) and
ground tenninal for
drive (B) is
below 2V.
YES
IGOFF
Check if
esistance betwee
check connector's
high-altitude signal
tenninal (G) and
ground tenninal for
drive (B) is
below
IOn.
YES
High-altitude signal (G)
circuit harness short-
circuited. Repair.
NO
NO
EMISSION CONTROL SYSTEM
Improper
installation of
high-altitude kit.
Repair.
Replace ECM.
Check if
fuel pump
operates.
YES
E/GOFF
Disconnect ECM
connector.
IGON
ECSlamp
comes on.
YES
Warning lamp
(R/L)
circuit harness short-
circuited; repair.
NO
Repair open IG
pulse (Y) circuit
harness.
-~I
Replace ECM.
II