Subaru Legacy 2005 Service Manual page 4163

Diagnostic Procedure with Diagnostic Trouble Code (DTC)
B: DIAGNOSTIC TROUBLE CODE (DTC) IS NOT STORED
DIAGNOSIS:
Defective combination meter
TROUBLE SYMPTOM:
• Communication error in odo/trip meter is not cleared.
• "No trouble code" is displayed on Subaru Select Monitor.
NOTE:
If DTC is not displayed on Subaru Select Monitor, LAN communication System should be OK.
Step
1 CHECK COMMUNICATION ERROR WITH
COMBINATION METER.
Turn the ignition switch to ON.
2 CHECK COMBINATION METER.
Perform the self-diagnosis of combination
meter.
3 CHECK BODY INTEGRATED MODULE.
1) Display the current data of ECM using Sub-
aru Select Monitor.
2) Check data of "body integrated module
data received".
4 CHECK BODY INTEGRATED MODULE.
1) Display the current data of ECM using Sub-
aru Select Monitor.
2) Check data of "body integrated module
counter update".
C: DTC B0100 INTEG. UNIT SYSTEM ERROR
DTC DETECTING CONDITION:
System error in body integrated module
TROUBLE SYMPTOM:
• Check light comes on in the combination meter, and displays communication error "Er IU".
• LAN communication immobilizer function may not be executed normally.
Step
1 CHECK DTC.
2 CHECK DTC CONCERNING ECM.
Check
Is communication error dis-
played?
Is combination meter OK?
Is the "Yes" displayed?
Is the "Yes" displayed?
Check
Is DTC concerning ECM dis-
played?
Is output DTC on ECM con-
cerning CAN communication
error?
LAN(diag)-33
LAN SYSTEM (DIAGNOSTICS)
Yes
Check the DTC. Go to step 2.
Go to step 3. Replace the com-
bination meter.
<Ref. to IDI-15,
Combination
Meter.>
Go to step 4. Replace the body
integrated mod-
ule. <Ref. to SL-
44, Body Inte-
grated Module.>
Repair the poor Replace the body
contact in connec- integrated mod-
tor. ule. <Ref. to SL-
44, Body Inte-
grated Module.>
Yes
Go to step 2. Replace the body
integrated mod-
ule. <Ref. to SL-
44, Body Inte-
grated Module.>
Replace the body Perform the diag-
integrated mod- nosis according to
ule. <Ref. to SL- DTC concerning
44, Body Inte- ECM.
grated Module.>
No
No