Subaru IMPREZA 2002 Service Manual page 635

DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Step
CHECK DTC PO705 ON DISPLAY.
I
CHECK INPUT SIGNAL FOR ECM.
1)Turn the ignition switch to ON.
2)Measure the voltage between ECM and
chassis ground.
Connector & terminal
(8135) No. 26 (+)
-
Chassis ground (-):
CHECK HARNESS BETWEEN ECM AND
TRANSMISSION HARNESS CONNECTOR.
1)Turn the ignition switch to OFF.
2)Disconnect the connectors from ECM and
transmission harness connector (T3).
3)Measure the resistance of harness between
€CM connector and chassis ground.
I
Connector & terminal
(8135) No. 26
-
Chassis ground:
I CHECK TRANSMISSION HARNESS CON-
NECTOR.
1)Disconnect the connector from inhibitor
,
switch.
2)Measure the resistance of harness between
transmission harness connector and engine
ground.
Connector & terminal
(T3) No. 12
-
Engine ground:
i CHECK INHIBITOR SWITCH.
Measure the resistance between inhibitor
switch connector the receptacle's terminals in
selector lever except for "N" position.
Terminals
NO. 7 - NO. 12:
5 CHECK SELECTOR CABLE CONNECTION.
Check
Ioes the Subaru Select Moni-
or or OBD-ll general scan
tool
ndicate DTC P0705?
s
the voltage between 4.5 and
5 . 5 V at except "N" and " P
iositions?
s the resistance less than 10
2?
s the resistance less than 10
n?
s the resistance more than 1
M a
at except "N" and "P" posi-
:ions?
Is there any fault in selector
:able connection to inhibitor
switch?
Yes
nspect DTC
'070.5 using "List
i f Diagnostic Trou-
)le Code (DTC)".
:Ref. to
k i t of Diagnostic
rrouble Code
:DTC).>
Even if MIL lights
-rp, the circuit has
,eturned to a nor-
nal condition at
:his time.
EN(S0HC)-77,
3epair ground
short circuit in har-
less between
ECM and trans-
nission harness
:onnector.
Repair ground
short circuit in har-
ness between
transmission har-
ness and inhibitor
switch connector.
Go to step 6.
Repair selector
cable connection.
<Ref. to CS-27,
INSPECTION,
Select Cable.>
No
i o to step 2.
;o to step
3 .
20 to step 4.
20 to step 5.
3eplace the inhibi
or switch. <Ref. tc
4T-28, Inhibitor
Switch.>
2ontact with SOA
:distributor) ser-
lice.
VOTE:
nspection by DTA
s required, be
:ause probabl
:ause is deteriori
:ion of multipl
,arts.
EN(S0HC)-311