Subaru LEGACY 2004 Service Manual page 777

Diagnostic Procedure with Diagnostic Trouble Code (DTC)
Step
1 CHECK HARNESS.
1) Disconnect the TCM connector (B54)
2) Measure the resistance between harness
connector terminals.
Connector & terminal
4AT MODEL
(B54) No. 3 — No. 12:
5AT MODEL
(B54) No. 3 — No. 4:
2 CHECK TCM.
Read the DTC of TCM using Subaru Select
Monitor. <Ref. to 4AT(diag)-17, READ DIAG-
NOSTIC TROUBLE CODE (DTC), OPERA-
TION, Subaru Select Monitor.> <Ref. to
5AT(diag)-16, READ DIAGNOSTIC TROU-
BLE CODE (DTC), OPERATION, Subaru
Select Monitor.>
Check
Is the resistance % "?
Is DTC other than "CAN com-
munication" displayed?
LAN(diag)-61
LAN SYSTEM (DIAGNOSTICS)
Yes
Open harness in Go to step 2.
related lines of
TCM. Repair or
replace the open
circuit of harness.
Perform the diag- Replace the TCM.
nosis according to <Ref. to 4AT-65,
DTC. Transmission Con-
trol Module
(TCM).> <Ref. to
5AT-61, Transmis-
sion Control Mod-
ule (TCM).>
No