Subaru Legacy 2005 Service Manual page 4177

Diagnostic Procedure with Diagnostic Trouble Code (DTC)
Step
1 CHECK HARNESS.
1) Disconnect the body integrated module
connector.
2) Measure the resistance between body inte-
grated module connector terminals.
Connector & terminal
(B280) No. 20 — No. 30:
2 CHECK HARNESS.
Measure the resistance between body inte-
grated module connector terminals.
Connector & terminal
(B280) No. 20 — No. 30:
3 CHECK HARNESS.
Measure the resistance between body inte-
grated module connector terminals.
Connector & terminal
(B280) No. 20 — No. 30:
4 CHECK HARNESS.
Measure the resistance between body inte-
grated module connector terminals.
Connector & terminal
(B280) No. 20 — No. 30:
5 CHECK HARNESS.
Measure the harness resistance between the
body integrated module connector and chassis
ground.
Connector & terminal
(B280) No. 20 — Chassis ground:
6 CHECK HARNESS.
Measure the harness resistance between the
body integrated module connector and chassis
ground.
Connector & terminal
(B280) No. 30 — Chassis ground:
7 CHECK HARNESS.
1) Turn the ignition switch to ON.
2) Measure the voltage between body inte-
grated module connector and chassis ground.
Connector & terminal
(B280) No. 20 (+) — Chassis ground (
8 CHECK HARNESS.
1) Turn the ignition switch to ON.
2) Measure the voltage between body inte-
grated module connector and chassis ground.
Connector & terminal
(B280) No. 30 (+) — Chassis ground (
9 CHECK CONTROL MODULE (EXCEPT FOR
VDC MODEL, GO TO NEXT).
1) Connect the body integrated module con-
nector.
2) Perform the clear memory mode.
3) Disconnect the steering angle sensor con-
nector (B231), and read the DTC. <Ref. to
LAN(diag)-14, READ DIAGNOSTIC TROUBLE
CODE (DTC), OPERATION, Subaru Select
Monitor.>
Check
Is the resistance 55 — 65 Ω?
Is the resistance less than 10
Ω?
Is the resistance 110 — 130
Ω?
Is the resistance more than 30
MΩ?
Is the resistance less than 10
Ω?
Is the resistance less than 10
Ω?
Is the voltage more than 6 V?
−
):
Is the voltage more than 6 V?
−
):
Is DTC B0201 displayed on
Subaru Select Monitor?
LAN(diag)-47
LAN SYSTEM (DIAGNOSTICS)
Yes
Go to step 5. Go to step 2.
Go to step 14. Go to step 3.
Go to step 15. Go to step 4.
Repair or replace Go to step 5.
the short circuit of
harness of body
integrated module.
Repair or replace Go to step 6.
the ground short
circuit of harness.
Repair or replace Go to step 7.
the ground short
circuit of harness.
Go to step 18. Go to step 8.
Go to step 19. Go to step 9.
Go to step 10. Replace the steer-
ing angle sensor.
<Ref. to VDC-17,
REPLACEMENT,
Steering Angle
Sensor.>
No