Subaru B9 TRIBECA WX 2007, Manual

Page: 608 / 861

LAN(diag)-33
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
LAN SYSTEM (DIAGNOSTICS)
CAUTION:
When replacing body integrated unit on the model with immobilizer system, refer to the “REGISTRA-
TION MANUAL FOR IMMOBILIZER”.
B: DIAGNOSTIC TROUBLE CODE (DTC) IS NOT STORED
DIAGNOSIS:
Defective combination meter
TROUBLE SYMPTOM:
• Communication error display 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.
11 CHECK HARNESS CONNECTOR BETWEEN
BODY INTEGRATED UNIT AND CHASSIS
GROUND.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from body inte-
grated unit.
3) Measure the resistance of harness between
the body integrated unit and chassis ground.
Connector & terminal
(B280) No. 19 — Chassis ground:
Is the resistance more than 1
M
Ω ?
Go to step
12
. Repair the poor
contact of harness
between body inte-
grated unit and
ground.
12 CHECK POOR CONTACT OF CONNEC-
TORS.
Is there poor contact at control
unit ground and Subaru Select
Monitor? Repair the poor
contact of connec-
tor. Replace the body
integrated unit.
<Ref. to SL-51,
Body Integrated
Unit.>
Step Check Yes No
1 CHECK COMMUNICATION ERROR DIS-
PLAY WITH COMBINATION METER.
Turn the ignition switch to ON.
Is communication error dis-
played? Inspect the DTC. Go to step
2
.
2 CHECK COMBINATION METER.
Perform the self-diagnosis of combination
meter.
Is combination meter OK? Go to step 3 . Replace the com-
bination meter.
<Ref. to IDI-12,
Combination
Meter.>
3 CHECK BODY INTEGRATED UNIT.
1) Display the current data of ECM using Sub-
aru Select Monitor.
2) Check data of “body integrated unit data
received”.
Is “Yes” displayed? Go to step
4
. Replace the body
integrated unit.
<Ref. to SL-51,
Body Integrated
Unit.>
4 CHECK BODY INTEGRATED UNIT.
1) Display the current data of ECM using Sub-
aru Select Monitor.
2) Check data of “body Integrated unit counter
update”.
Is “Yes” displayed? Repair the poor
contact of connec-
tor. Replace the body
integrated unit.
<Ref. to SL-51,
Body Integrated
Unit.>
Step Check Yes No
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