LAN(diag)-47
LAN SYSTEM (DIAGNOSTICS)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
Step
Check
Yes
No
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:
Is the resistance 55 — 65
Ω?
Go to step 5.
Go to step 2.
2
CHECK HARNESS.
Measure the resistance between body inte-
grated module connector terminals.
Connector & terminal
(B280) No. 20 — No. 30:
Is the resistance less than 10
Ω?
Go to step 14.
Go to step 3.
3
CHECK HARNESS.
Measure the resistance between body inte-
grated module connector terminals.
Connector & terminal
(B280) No. 20 — No. 30:
Is the resistance 110 — 130
Ω?
Go to step 15.
Go to step 4.
4
CHECK HARNESS.
Measure the resistance between body inte-
grated module connector terminals.
Connector & terminal
(B280) No. 20 — No. 30:
Is the resistance more than 30
M
Ω?
Repair or replace
the short circuit of
harness of body
integrated module.
Go to step 5.
5
CHECK HARNESS.
Measure the harness resistance between the
body integrated module connector and chassis
ground.
Connector & terminal
(B280) No. 20 — Chassis ground:
Is the resistance less than 10
Ω?
Repair or replace
the ground short
circuit of harness.
Go to step 6.
6
CHECK HARNESS.
Measure the harness resistance between the
body integrated module connector and chassis
ground.
Connector & terminal
(B280) No. 30 — Chassis ground:
Is the resistance less than 10
Ω?
Repair or replace
the ground short
circuit of harness.
Go to step 7.
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 (
−
):
Is the voltage more than 6 V?
Go to step 18.
Go to step 8.
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 (
−
):
Is the voltage more than 6 V?
Go to step 19.
Go to step 9.
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.>
Is DTC B0201 displayed on
Subaru Select Monitor?
Go to step 10.
Replace the steer-
ing angle sensor.
<Ref. to VDC-17,
REPLACEMENT,
Steering Angle
Sensor.>