Subaru B9 TRIBECA WX 2007 Manual page 623

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Diagnostic Procedure with Diagnostic Trouble Code (DTC)
LAN SYSTEM (DIAGNOSTICS)
Step
20 CHECK CONTROL MODULE.
1) Connect all the control module connectors.
2) Connect the Subaru Select Monitor and per-
form the clear memory.
3) Disconnect the TCM connector (B54).
4) Turn the ignition switch to ON and read the
DTC of body integrated unit. <Ref. to
LAN(diag)-12, READ DIAGNOSTIC TROUBLE
CODE (DTC), OPERATION, Subaru Select
Monitor.>
21 CHECK CONTROL MODULE.
1) Connect the TCM control module connec-
tor.
2) Using the Subaru Select Monitor, perform
the clear memory.
3) Disconnect the steering angle sensor con-
nector (B231).
4) Turn the ignition switch to ON and read the
DTC of body integrated unit. <Ref. to
LAN(diag)-12, READ DIAGNOSTIC TROUBLE
CODE (DTC), OPERATION, Subaru Select
Monitor.>
22 CHECK CONTROL MODULE.
1) Connect the steering angle sensor connec-
tor.
2) Using the Subaru Select Monitor, perform
the clear memory.
3) Disconnect the yaw rate sensor connector
(B359).
4) Turn the ignition switch to ON and read the
DTC of body integrated unit. <Ref. to
LAN(diag)-12, READ DIAGNOSTIC TROUBLE
CODE (DTC), OPERATION, Subaru Select
Monitor.>
23 CHECK CONTROL MODULE.
1) Connect all the control module connectors.
2) Check the data of "body integrated unit data
received" on the current data display of ECM
using Subaru Select Monitor.
24 CHECK CONTROL MODULE.
Check the data of "body integrated unit counter
update" on the data display of ECM.
Check
Is DTC U1201 displayed?
Is DTC U1201 displayed?
Is DTC U1201 displayed?
Is the "Yes" displayed?
Is the "Yes" displayed?
LAN(diag)-48
Yes No
Go to step 21. Check the TCM.
<Ref. to 5AT(diag)-
15, READ DIAG-
NOSTIC TROU-
BLE CODE (DTC),
OPERATION, Sub-
aru Select Moni-
tor.>
Go to step 22. Check the steering
angle sensor.
<Ref. to
VDC(diag)-15,
READ DIAGNOS-
TIC TROUBLE
CODE (DTC),
OPERATION, Sub-
aru Select Moni-
tor.>
Go to step 23. Check the yaw rate
sensor. <Ref. to
VDC(diag)-15,
READ DIAGNOS-
TIC TROUBLE
CODE (DTC),
OPERATION, Sub-
aru Select Moni-
tor.>
Go to step 24. Replace the body
integrated unit.
<Ref. to SL-51,
REMOVAL, Body
Integrated Unit.>
Inspect the ECM. Replace the body
<Ref. to integrated unit.
EN(H6DO)(diag)- <Ref. to SL-51,
37, Read Diagnos- REMOVAL, Body
tic Trouble Code Integrated Unit.>
(DTC).>