Subaru Legacy 2005 Service Manual page 1988

CONTROL SYSTEMS
Step
1 CHECK INPUT SIGNAL OF BODY INTE-
GRATED MODULE USING SUBARU SE-
LECT MONITOR.
1) Turn the ignition switch to OFF.
2) Connect the Subaru Select Monitor to data
link connector.
3) Turn the ignition switch and Subaru Select
Monitor power switch to ON.
4) Depress the brake pedal.
5) Read the input signal of key warning switch
from Subaru Select Monitor.
<Ref. to LAN(diag)-14, OPERATION, Subaru
Select Monitor.>
2 CHECK INPUT SIGNAL OF BODY INTE-
GRATED MODULE USING SUBARU SE-
LECT MONITOR.
1) Shift the select lever to "P" range.
2) Read the input signal of "P" range switch
from Subaru Select Monitor.
<Ref. to LAN(diag)-14, OPERATION, Subaru
Select Monitor.>
3 CHECK DTC OF BODY INTEGRATED MOD-
ULE.
Check DTC of body integrated module.
<Ref. to LAN(diag)-24, OPERATION, Read
Diagnostic Trouble Code (DTC).>
4 CHECK HARNESS BETWEEN BATTERY
AND KEY WARNING SWITCH.
1) Disconnect the connector of key warning
switch.
2) Measure the voltage of harness between
key warning switch and chassis ground.
Connector & terminal
(B350) No. 3 (+) — Chassis ground (
5 CHECK KEY WARNING SWITCH.
Measure the resistance between connector
terminals of key warning switch.
Terminal
No. 3 — No. 4:
6 CHECK KEY WARNING SWITCH.
1) Remove the key.
2) Measure the resistance between connector
terminals of key warning switch.
Terminal
No. 3 — No. 4:
7 CHECK HARNESS BETWEEN BODY INTE-
GRATED MODULE AND KEY WARNING
SWITCH.
1) Connect the connector of key warning
switch and insert the key.
2) Disconnect the connector of body inte-
grated module.
3) Measure the voltage between body inte-
grated module and chassis ground.
Connector & terminal
(B281) No. 7 (+) — Chassis ground (
AT Shift Lock Control System
Is "ON" displayed?
Is "ON" displayed?
Is DTC (B0105) displayed?
Is the voltage 9 — 16 V?
−
):
Is the resistance more than 1
MΩ?
Is the resistance more than 1
MΩ?
Is the voltage more than 9 V?
−
):
CS-20
Check
Go to step 2.
Go to step 3.
Repair or replace it
according to the
DTC.
Go to step 5.
Replace the key
warning switch.
Go to step 7.
Go to step 8.
Yes No
Go to step 4.
Go to step 8.
Check the body
integrated module.
Repair open or
short circuit of the
harness between
battery and key
warning switch.
Go to step 6.
Replace the key
warning switch.
Repair open circuit
of the harness
between body inte-
grated module and
key warning
switch.