Subaru B9 TRIBECA WX 2007, Manual

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LAN(diag)-55
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
LAN SYSTEM (DIAGNOSTICS)
Step Check Yes No
1 CHECK DTC.
Connect the Subaru Select Monitor and read all
DTCs.
Is there any DTC other than for
the body integrated unit? Perform the diag-
nosis according to
the DTC of other
control modules. Go to step 2 .
2 CHECK DTC.
Check the DTC displayed in the body integrated
unit.
Is the DTC displayed a current
malfunction? Replace the body
integrated unit.
<Ref. to SL-51,
REMOVAL, Body
Integrated Unit.> Go to step 3 .
3 CHECK DTC.
Turn the ignition switch to OFF, and read the
DTC again.
Is the DTC displayed a current
malfunction? Replace the body
integrated unit.
<Ref. to SL-51,
REMOVAL, Body
Integrated Unit.> Go to step
4
.
4 CHECK CURRENT DATA.
On the Subaru Select Monitor, display engine
speed and vehicle speed at the ECM, TCM,
VDC/ABS and body integrated unit under the
same conditions, and compare the data.
Do all data values match? A temporary poor
contact has
occurred. Perform
the Clear Memory
operation. Go to step 5 .
5 CHECK TCM.
Read the DTC of TCM using the Subaru Select
Monitor. <Ref. to 5AT(diag)-15, OPERATION,
Subaru Select Monitor.>
Is DTC other than “CAN com-
munication” displayed? Perform the diag-
nosis according to
DTC. Replace the TCM.
<Ref. to 5AT-58,
Transmission Con-
trol Module
(TCM).>
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