Subaru B9 TRIBECA WX 2007 Manual page 784

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SECURITY AND LOCKS
2. Door Lock Control System
A: WIRING DIAGRAM
1. DOOR LOCK CONTROL
<Ref. to WI-149, WIRING DIAGRAM, Keyless Entry System.>
B: INSPECTION
1. SYMPTOM CHART
Symptom
The door lock control system
does not operate.
The door lock switch does
not operate.
A specific door lock actuator
does not operate.
2. CHECK FUSE
Step
1 CHECK FUSE.
Remove and visually check the fuse No. 3 (in
the fuse & relay box) and No. 7 (in the fuse &
relay box).
3. CHECK POWER SUPPLY & GROUND CIRCUIT
Step
1 CHECK POWER SUPPLY.
1) Disconnect the harness connector of body
integrated unit.
2) Measure the voltage between harness con-
nector terminal and chassis ground.
Connector & terminal
(i84) No. 34 (+) — Chassis ground (–):
(B281) No. 2 (+) — Chassis ground (–):
2 CHECK GROUND CIRCUIT.
Measure the resistance between harness con-
nector terminal and chassis ground.
Connector & terminal
(B280) No. 22 — Chassis ground:
(B281) No. 8 — Chassis ground:
(B281) No. 9 — Chassis ground:
Door Lock Control System
Repair order
1. Check the fuse.
2. Check the power supply and ground circuit
for body integrated unit.
3. Check the door lock switch and the circuit.
4. Check the door lock actuator and the circuit. <Ref. to SL-10, CHECK DOOR LOCK ACTUA-
Check the door lock switch.
Check the door lock actuator and circuit.
Is the fuse blown out?
Is the voltage 10 V or more?
Is the resistance less than 10 Ω? The power supply
SL-8
Reference
<Ref. to SL-8, CHECK FUSE, INSPECTION,
Door Lock Control System.>
<Ref. to SL-8, CHECK POWER SUPPLY &
GROUND CIRCUIT, INSPECTION, Door Lock
Control System.>
<Ref. to SL-9, CHECK DOOR LOCK SWITCH.,
INSPECTION, Door Lock Control System.>
TOR & CIRCUIT, INSPECTION, Door Lock Con-
trol System.>
<Ref. to SL-9, CHECK DOOR LOCK SWITCH.,
INSPECTION, Door Lock Control System.>
<Ref. to SL-10, CHECK DOOR LOCK ACTUA-
TOR & CIRCUIT, INSPECTION, Door Lock Con-
trol System.>
Check Yes
Replace the fuse
with a new one.
Check Yes
Go to step 2.
and ground circuit
are OK.
No
Check the power
supply and ground
circuit. <Ref. to SL-
8, CHECK
POWER SUPPLY
& GROUND CIR-
CUIT, INSPEC-
TION, Door Lock
Control System.>
No
Check the harness
for open or short
circuit between
body integrated
unit and fuse.
Repair the har-
ness.