Subaru IMPREZA 2002 Service Manual page 211

I
DIAGNOSTIC PROCEDURE FOR NO-DIAGNOSTIC TROUBLE CODE (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
Step
CHECK HARNESS CONNECTOR BETWEEN
TCM AND INHIBITOR SWITCH.
1)Turn the ignition switch to OFF.
2)Disconnect the connectors from TCM, inhibi.
tor switch and combination meter.
3)Measure the resistance of harness between
TCM and chassis ground.
Connector & terminal
Non-turbo model
Turbo model
(B55) No. 23
-
Chassis ground:
(B55) No. 1
-
Chassis ground:
CHECK HARNESS CONNECTOR BETWEEN
TCM AND INHIBITOR SWITCH.
1)Turn the ignition switch to
OFF.
2)Disconnect the connectors from TCM and
inhibitor switch.
3)Measure the resistance of harness between
TCM and inhibitor switch connector.
Connector & terminal
Non-turbo model
Turbo model
(B55) NO. 17
-
(V)
NO. 8:
(B55) NO. 3
-
(V)
NO. 8:
CHECK INPUT SIGNAL FOR TCM.
1)Turn the ignition switch to OFF.
2)Connect the connector to TCM and inhibitor
switch.
3)Turn the ignition switch to ON.
4)Measure the voltage between TCM and
chassis ground.
Connector & terminal
Non-turbo model
Turbo model
(B55) No. 17 (+)
-
Chassis ground (-):
(B55) No. 3 (+)
-
Chassis ground (-):
CHECK INPUT SIGNAL FOR TCM.
Measure the voltage between TCM and chas-
sis ground.
Connector & terminal
Non-turbo model
Turbo model
(B55) No. 17 (+)
-
Chassis ground (-):
(B55) No. 3 (+)
-
Chassis ground ( - ) :
CHECK "R" RANGE INDICATOR LIGHT
BULB.
1)Turn the ignition switch to OFF.
2)Remove the combination meter.
3)Remove the "R" range indicator light bulb
from combination meter.
Check
s
the resistance less than 1
AR?
s the resistance less than 1
2?
s
the voltage less than 1 V in
R" range?
s
the voltage more than 8 V in
)ther ranges?
s
the "R" range indicator light
)ulb OK?
Yes
30 to step 29.
30 to step 30.
30 to step 31.
30 to step 65.
30 to step 33.
No
lepair ground
,hart
circuit in " P
ange circuit.
lepair open circui
I
harness
between TCM anc
ihibitor switch
:onnector, and
ioor contact in
:oupling connec-
Dr.
;o
to step 65.
leplace the TCM.
:Ref. to AT-45,
-ransmission Con
rol Module
TCM).>
leplace the "R"
ange indicator
ght bulb. <Ref. tc
DI-1 1, Combina-
ion Meter Assem,
)lY.>
AT-I 19