Subaru IMPREZA 2002 Service Manual page 134

DIAGNOSTIC PROCEDURE FOR SELECT MONITOR COMMUNICATION
I
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
Step Check
3epair harness
ind connector
letween each con-
rol module and
jata link connec-
or.
i o
to step 11.
R?
A temporary poor
contact or har-
ness may be the
case. Repair har-
ness or connector
in the select moni-
tor communication
circuit.
Repair harness
and connector
between TCM and
data link connec-
(840) No. 4
-
Chassis ground:
CHECK OUTPUT SIGNAL FOR TCM.
I
tor?
Is the voltage more than 1 V?
and connector
between each con.
trol module and
data link connec-
0 CHECK HARNESSKONNECTOR BETWEEN
TCM AND DATA LINK CONNECTOR.
Measure the resistance between TCM connec-
tor and data link connector.
Connector & terminal
Non-turbo model
(855) NO. 7
-
(840) NO. 5:
(855) NO. 16
-
(840) NO. 4:
Turbo model
(856) NO. 6
-
(840) NO. 5:
(856) NO. 15
-
(840) NO. 4:
1 CHECK INSTALLATION OF TCM CONNEC-
TOR.
Turn the ignition switch to OFF.
CHECK POOR CONTACT IN CONNECTORS. 2
tor.
Is the resistance less than 0.5
R?
Is TCM connector inserted into
TCM?
Is there poor contact in control
module and data link connec-
i o
to step 12.
3epair the poor
:ontact.
tor.
Insert the TCM
connector into
TCM.
Replace the TCM.
<Ref. to AT-45,
Transmission Con-
trol Module
(TCM).>
AT-42