2009 SUBARU TRIBECA Service Workshop Manual

Page 489 of 2453

SUBARU TRIBECA 2009 1.G Service Workshop Manual LAN(diag)-33
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
LAN SYSTEM (DIAGNOSTICS)
Step Check Yes No
1CHECK IGNITION SWITCH.Is the ignition switch ON? Go to step 2.Turn the ignition
switch

LAN(diag)-33
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
LAN SYSTEM (DIAGNOSTICS)
Step Check Yes No
1CHECK IGNITION SWITCH.Is the ignition switch ON? Go to step 2.Turn the ignition
switch to ON, and
select Integ. Unit
mode using Sub-
aru Select Monitor.
2CHECK BATTERY.
1) Turn the ignition switch to OFF.
2) Measure the battery voltage.
Is the voltage more than 11 V? Go to step 3.Charge or replace
the battery.
3CHECK BATTERY TERMINAL.Is there poor contact at battery
terminal?
Repair or tighten
the battery termi-
nal.
Go to step 4.
4CHECK COMMUNICATION OF SUBARU SE-
LECT MONITOR.
1) Turn the ignition switch to ON.
2) Using the Subaru Select Monitor, check
whether communication to other systems can
be executed normally.
Are system and model year
displayed?
Go to step 7.Go to step 5.
5CHECK COMMUNICATION OF SUBARU SE-
LECT MONITOR.
1) Turn the ignition switch to OFF.
2) Disconnect the body integrated unit con-
nector.
3) Turn the ignition switch to ON.
4) Check whether communication to other
systems can be executed normally.
Are system and model year
displayed?
Go to step 7.Go to step 6.
6CHECK HARNESS CONNECTOR BETWEEN
EACH CONTROL UNIT AND SUBARU SE-
LECT MONITOR.
1) Turn the ignition switch to ON.
2) Disconnect the body integrated unit con-
nector.
3) Measure the resistance between data link
connector and chassis ground.
Connector & terminal
(B40) No. 10 — Chassis ground:
Is the resistance more than 1
MΩ?
Go to step 7.Repair the har-
ness and connec-
tor between each
control unit and
Subaru Select
Monitor.
7CHECK OUTPUT SIGNAL TO BODY INTE-
GRATED UNIT.
1) Turn the ignition switch to ON.
2) Measure the voltage between body inte-
grated unit and chassis ground.
Connector & terminal
(B40) No. 10 (+) — Chassis ground (–):
Is the voltage less than 1 V? Go to step 8.Repair the har-
ness and connec-
tor between each
control unit and
Subaru Select
Monitor.
8CHECK HARNESS CONNECTOR BETWEEN
BODY INTEGRATED UNIT AND DATA LINK
CONNECTOR.
Measure the resistance between body inte-
grated unit and data link connector.
Connector & terminal
(B40) No. 10 — (B280) No. 19:
Is the resistance less than 1
Ω?
Go to step 9.Repair the har-
ness and connec-
tor between body
integrated unit and
Subaru Select
Monitor.
9CHECK INSTALLATION OF BODY INTE-
GRATED UNIT CONNECTOR.
Tu r n t h e i g n i t i o n s w i t c h t o O F F.
Is the body integrated unit con-
nector inserted into body inte-
grated unit until the clamp
locks onto it?
Go to step 10.Insert the body
integrated unit
connector into
body integrated
unit.

Page 490 of 2453

SUBARU TRIBECA 2009 1.G Service Workshop Manual LAN(diag)-34
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
LAN SYSTEM (DIAGNOSTICS)
CAUTION:
When replacing body integrated unit on the model with immobilizer system, refer to the “REGISTR

Page 491 of 2453

SUBARU TRIBECA 2009 1.G Service Workshop Manual LAN(diag)-35
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
LAN SYSTEM (DIAGNOSTICS)
B: DIAGNOSTIC TROUBLE CODE (DTC) IS NOT STORED
DIAGNOSIS:
Defective combination meter
TROUBLE SYMPTOM:
•

Page 492 of 2453

SUBARU TRIBECA 2009 1.G Service Workshop Manual LAN(diag)-36
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
LAN SYSTEM (DIAGNOSTICS)
D: DTC B0101 BATT P/SUPPLY MALFUNCTION CONT.
DTC DETECTING CONDITION:
Battery power supply control circuit

Page 493 of 2453

SUBARU TRIBECA 2009 1.G Service Workshop Manual LAN(diag)-37
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
LAN SYSTEM (DIAGNOSTICS)
Step Check Yes No
1CHECK FUSE.
1) Turn the ignition switch to OFF.
2) Remove the fuse (No. 7).
Is the fuse

Page 494 of 2453

SUBARU TRIBECA 2009 1.G Service Workshop Manual LAN(diag)-38
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
LAN SYSTEM (DIAGNOSTICS)
E: DTC B0102 BATT P/SUPPLY MALFUNCTION CONT.
DTC DETECTING CONDITION:
Battery power supply backup circuit

Page 495 of 2453

SUBARU TRIBECA 2009 1.G Service Workshop Manual LAN(diag)-39
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
LAN SYSTEM (DIAGNOSTICS)
Step Check Yes No
1CHECK FUSE.
1) Turn the ignition switch to OFF.
2) Remove the fuse (No. 8).
Is the fuse

Page 496 of 2453

SUBARU TRIBECA 2009 1.G Service Workshop Manual LAN(diag)-40
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
LAN SYSTEM (DIAGNOSTICS)
F: DTC B0103 IGNITION POWER FAILURE
DTC DETECTING CONDITION:
IGN power supply circuit is open or shorted.

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