Subaru Legacy 2005 Service Manual page 4208

Diagnostic Procedure with Diagnostic Trouble Code (DTC)
LAN SYSTEM (DIAGNOSTICS)
V: DTC B0313 CAN-LS MONITOR DATA ABNORMAL
DTC DETECTING CONDITION:
Center display unit error, or harness between the main harness splice and center display unit is open or
shorted, the connector is not connected securely and the terminal has poor caulking.
TROUBLE SYMPTOM:
"Er LC" is displayed in odo/trip meter.
WIRING DIAGRAM:
CAN JOINT CONNECTOR
27
BODY
INTEGRATED
MODULE 26
i84
i84
1 2 3 4 5 6
9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
24 25 26 27 28 29 30 31 32 33
Step
1 CHECK CENTER DISPLAY.
1) Display the current data of body integrated
module using Subaru Select Monitor.
2) Read the fail display of center display.
2 CHECK NAVIGATION.
1) Display the current data of body integrated
module using Subaru Select Monitor.
2) Read the display of NAVI fail.
i77
i90
7 8
4 5 6 7
1 2 3
8 10 11 12 13 14 15
34 35
Is the center display fail OK?
Is the NAVI fail OK?
LAN(diag)-78
TWISTED WIRE
i77
1 2 3 4 5 6 7 8 9 10 11 12
8
16
Check
MODEL WITHOUT
NAVIGATION SYSTEM
4
CENTER
DISPLAY
2
i103
MODEL WITH
NAVIGATION SYSTEM
14
CENTER
DISPLAY
6
i90
i103
1 2
3 4
Yes
Go to step 2. Replace the center
display.
Replace the center Repair the naviga-
display. tion module.
LAN00177
No