Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Subaru Forester 1999-2004 Approved Subaru Forester 2004 3 - Transmission Automatic Transmission (Diagnostics) Diagnostic Procedure for Select Monitor Communication
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DIAGNOSTIC PROCEDURE FOR SELECT MONITOR COMMUNICATION
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
13.Diagnostic Procedure for Select Monitor Communication
A: COMMUNICATION FOR INITIALIZING IMPOSSIBLE
DIAGNOSIS:
Faulty harness connector
TROUBLE SYMPTOM:
Select Monitor communication failure
WIRING DIAGRAM:
BATTERY
SBF-5
SBF-1
NO.4
E
SBF-4
F44
F45
7
9
IGNITION B61
B62
SWITCH
1
10
DATA LINK
NO.11
6
CONNECTOR
12
13
B40
A22
A23
A24
B7
B6
A: B54 B: B55 TCM
2
4
B300
LINE END
CHECK
B19
B9
CONNECTOR
B21
16
B11 E2
16
T4
E
E
TRANSMISSION
F44 B40 B21 B11 B300
1 2 3 4 1 2 3 4 1 23 4 1 2 3
1 2 3 4 5 6 7 8
5 6 7 8 5 6 7 8 5 6 7 8 4 5 6
9 10 11 12 13 14 15 16 9 10 11 12 9 10 11 12
13 14 15 16 13 14 15 16
17 18 19 20
F45 B55 B54
1 2 3 4 5 6 7 1 2 3 4 5 6 7 8 9 1 2 3 4 5 6 7 8 9
8 9 10 11 12 13 14 15 16 10 11 12 13 14 15 16 17 18 10 11 12 13 14 15 16 17 18
19 20 21 22 23 24 19 20 21 22 23 24
AT-00424
4AT(H4SO)-30
DIAGNOSTIC PROCEDURE FOR SELECT MONITOR COMMUNICATION
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
Step Check Yes No
1 CHECK SUBARU SELECT MONITOR POW- Is the voltage more than 10 V? Go to step 2. Repair the har-
ER SUPPLY CIRCUIT. ness and connec-
Measure the voltage between data link con- tor between
nector and chassis ground. battery and data
Connector & terminal link connector, and
(B40) No. 1 (+) -- Chassis ground (-): poor contact in
coupling connec-
tor.
2 CHECK SUBARU SELECT MONITOR Is the resistance less than 1 Go to step 3. Repair the open
GROUND CIRCUIT. ? circuit in harness
Measure the resistance of harness between between data link
data link connector and chassis ground. connector and
Connector & terminal ground terminal,
(B40) No. 12 -- Chassis ground: and poor contact
(B40) No. 13 -- Chassis ground: in coupling con-
nector.
3 CHECK COMMUNICATION OF SUBARU SE- Are the name and year of sys- Go to step 8. Go to step 4.
LECT MONITOR. tem displayed on Subaru
1) Turn the ignition switch to ON. Select Monitor?
2) Using the Subaru Select Monitor, check
whether communication to engine systems can
be executed normally.
4 CHECK COMMUNICATION OF SUBARU SE- Are the name and year of sys- Go to step 6. Go to step 5.
LECT MONITOR. tem displayed on Subaru
1) Turn the ignition switch to OFF. Select Monitor?
2) Disconnect the TCM connector.
3) Check whether communication to engine
systems can be executed normally.
5 CHECK COMMUNICATION OF SUBARU SE- Are the name and year of sys- Inspect the ECM. Go to step 6.
LECT MONITOR. tem displayed on Subaru
1) Turn the ignition switch to OFF. Select Monitor?
2) Connect the TCM connector.
3) Disconnect the ECM connector.
4) Check whether communication to transmis-
sion systems can be executed normally.
6 CHECK HARNESS CONNECTOR BETWEEN Is the resistance more than 1 Go to step 7. Repair the har-
EACH CONTROL MODULE AND DATA LINK M? ness and connec-
CONNECTOR. tor between each
1) Turn the ignition switch to OFF. control module
2) Disconnect the TCM, ECM, ABSCM&H/U and data link con-
and cruise control module connectors. nector.
3) Measure the resistance between TCM con-
nector and chassis ground.
Connector & terminal
(B40) No. 10 -- Chassis ground:
(B40) No. 6 -- Chassis ground:
7 CHECK OUTPUT SIGNAL FOR TCM. Is the voltage more than 1 V? Repair the har- Go to step 8.
1) Turn the ignition switch to ON. ness and connec-
2) Measure the voltage between TCM and tor between each
chassis ground. control module
Connector & terminal and data link con-
(B40) No. 10 (+) -- Chassis ground (-): nector.
(B40) No. 6 (+) -- Chassis ground (-):
8 CHECK HARNESS/CONNECTOR BETWEEN Is the resistance less than 0.5 Go to step 9. Repair the har-
TCM AND DATA LINK CONNECTOR. ? ness and connec-
Measure the resistance between TCM connec- tor between TCM
tor and data link connector. and data link con-
Connector & terminal nector.
(B55) No. 7 -- (B40) No. 10:
4AT(H4SO)-31
DIAGNOSTIC PROCEDURE FOR SELECT MONITOR COMMUNICATION
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
Step Check Yes No
9 CHECK HARNESS/CONNECTOR BETWEEN Is the resistance more than 1 Go to step 10. Repair the har-
TCM AND DATA LINK CONNECTOR. M? ness and connec-
Measure the resistance between TCM and tor between TCM
data link connector. and data link con-
Connector & terminal nector.
(B54) No. 22 -- (B40) No. 6:
10 CHECK INSTALLATION OF TCM CONNEC- Is the TCM connector inserted Go to step 11. Insert the TCM
TOR. into TCM? connector into
Turn the ignition switch to OFF. TCM.
11 CHECK POOR CONTACT IN CONNECTORS. Is there poor contact in control Repair the poor Replace the TCM.
module and data link connec- contact.
4AT(H4SO)-32
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