Subaru B9 TRIBECA WX 2007 Manual page 619

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Diagnostic Procedure with Diagnostic Trouble Code (DTC)
LAN SYSTEM (DIAGNOSTICS)
Step
1 CHECK HARNESS.
1) Disconnect the body integrated unit connec-
tor (B280).
2) Measure the resistance between body inte-
grated unit connector and chassis ground.
Connector & terminal
(B280) No. 6 — Chassis ground:
2 CHECK HARNESS.
1) Disconnect the body integrated unit connec-
tor (B280).
2) Disconnect the shift lock solenoid connector
(B116).
3) Measure the resistance between body inte-
grated unit connector and shift lock solenoid
connector.
Connector & terminal
(B280) No. 6 — (B116) No. 3:
3 CHECK SHIFT LOCK SOLENOID.
1) Disconnect the shift lock solenoid connec-
tor.
2) Measure the internal resistance of shift lock
solenoid.
Connector & terminal
(B116) No. 3 — No. 4:
4 CHECK GROUND CIRCUIT.
1) Disconnect the shift lock solenoid connec-
tor.
2) Measure the resistance between shift lock
solenoid connector (B116) and chassis ground.
Connector & terminal
(B116) No. 4 — Chassis ground:
5 CHECK HARNESS.
1) Disconnect the body integrated unit connec-
tor (B280) from the ground.
2) Measure the resistance between body inte-
grated unit connector (B280) and chassis
ground.
Connector & terminal
(B280) No. 6 — Chassis ground:
Check
Is the resistance between 10 —
30 Ω?
Is the resistance less than 10
Ω?
Is the resistance between 10 —
30 Ω?
Is the resistance less than 10
Ω?
Is the resistance more than 1
MΩ?
LAN(diag)-44
Yes No
Go to step 5. Go to step 2.
Go to step 3. Repair or replace
the open or short
circuit of harness.
Go to step 4. Replace the shift
lock solenoid.
Temporary poor Replace the body
contact occurs. integrated unit.
Check the connec- <Ref. to SL-51,
tion of each termi- Body Integrated
nal and repair Unit.>
when necessary.
Replace the body Repair the short
integrated unit. circuit of harness
<Ref. to SL-51, or replace har-
Body Integrated ness.
Unit.>