Subaru IMPREZA 2002 Service Manual page 193

I
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
Step
1 CHECK HARNESS CONNECTOR BETWEEN
TCM AND TRANSMISSION.
1)Turn the ignition switch to OFF.
2)Disconnect the connector from TCM and
transmission.
3)Measure the resistance of harness between
TCM and transmission connector.
Connector & terminal
Non-turbo model
Turbo model
(B54) NO. 15
-
(Bl
1)
NO. 6:
(B54) NO. 6
-
(811) NO. 6:
2 CHECK HARNESS CONNECTOR BETWEEN
TCM AND TRANSMISSION.
Measure the resistance harness connector
between TCM and chassis ground.
Connector & terminal
Non-turbo model
Turbo model
(854) No. 15
-
Chassis ground:
(B54) No. 6
-
Chassis ground:
. 3
CHECK TRANSFER DUTY SOLENOID.
Measure the resistance between transmission
connector and transmission terminals.
Connector & terminal
(T4) NO. 6
-
NO. 16:
4
PREPARE SUBARU SELECT MONITOR.
CHECK OUTPUT SIGNAL EMITTED FROM
TCM.
1)Connect the connectors to TCM and trans-
mission.
2)Turn the ignition switch to ON (engine OFF).
3)Throttle is fully closed.
4)Measure the voltage between TCM connec-
tor and chassis ground.
Connector & terminal
Non-turbo model
Turbo model
(854) No. 15 (+)
-
Chassis ground (-):
(854) No. 6 (+)
-
Chassis ground (-):
CHECK OUTPUT SIGNAL EMITTED FROM
TCM.
Measure the voltage between TCM connector
and chassis ground.
Connector & terminal
Non-turbo model
Turbo model
(854) No. 15 (+)
-
Chassis ground (-):
(854) No. 6 (+)
-
Chassis ground ( - ) :
7 CHECK VEHICLE
Check
s the resistance less than 1
2?
s the resistance more than
1
An?
s the resistance between 10
ind 17 R?
10 you have a Subaru Select
A
o
n i to r?
s the voltage less than 1 V in
P" range?
s the voltage between 5 and 7
J in "D" range?
s
the taraet non-turbo model S
Yes
i o to step 2.
i o to step 3.
;o to step 4.
; o to step 7 .
; o to step
6 .
iven if the AT OIL
-EMP warning
ights up, the cir-
:uit has returned
o a normal condi-
ion at this time. A
emporary poor
:ontact of the con.
rector or harness
nay be the cause.
Iepair harness or
:onnector in the
TCM and trans-
nission.
; o to step 8.
No
3epair open circuit
n harness
setween TCM and
[ransmission con-
lector.
Repair short circuii
in harness
between TCM and
transmission con-
lector.
Go to step 13.
Go to step 5.
Go to step 12.
Go to step 12.
Go to step 10.
AT-I 01