2004 SUBARU FORESTER fuse

ET-3
ENTERTAINMENT
Radio System
2. Radio System
A: WIRING DIAGRAM
1. RADIO

B: INSPECTION
Symptom Repair order
No power coming in. (No display and no sound from speakers.) (1) Check the fuse and power supply for radio.
(2) Check the radio ground.
(3) Remove the radio for repair.
A specific speaker does not operate. (1) Check the speaker.
(2) Check the output circuit between radio and speaker.
Radio generates noise with engine running. (1) Check the radio ground.
(2) Check the generator.
(3) Check the ignition coil.
(4) Remove the radio for repair.
AM and FM modes are weak or noisy. (1) Check the antenna.
(2) Check the antenna amplifier.
(3) Check the noise suppressor.
(4) Check the radio ground.
(5) Remove the radio for repair.

GW-6
GLASS/WINDOW/MIRROR
Power Window System
2. Power Window System
A: WIRING DIAGRAM
1. POWER WINDOW

B: INSPECTION
Symptom Repair order
All power windows does not operate.(1) Fuse (SBF-6) (F/B No. 18)
(2) Power window circuit breaker
(3) Power window relay
(4) Wire harness
One window does not operate.(1) Power window main switch
(2) Power window sub switch
(3) Power window motor
(4) Wire harness
“Window Lock” does not operate. Power window main switch

GW-10
GLASS/WINDOW/MIRROR
Remote Control Mirror System
4. Remote Control Mirror System
A: WIRING DIAGRAM
1. REMOTE CONTROL MIRROR

B: INSPECTION
Symptom Repair order
All function does not operate.(1) Fuse (F/B No. 4) (F/B No. 13) (F/B No. 17) (F/B No. 18)
(2) Mirror switch
(3) Wiring harness
One side of the mirror motor does not operate.(1) Mirror switch
(2) Mirror motor
(3) Wiring harness
Heated mirror does not operate.(1) Mirror switch
(2) Heated mirror
(3) Wiring harness

GW-30
GLASS/WINDOW/MIRROR
Rear Window Defogger System
16.Rear Window Defogger System
A: WIRING DIAGRAM
1. REAR WINDOW DEFOGGER

B: INSPECTION
Symptom Repair order
Rear window defogger does not operate.(1) Fuse (M/B No. 1) (F/B No. 17)
(2) Rear defogger relay
(3) Rear defogger timer
(4) Defogger switch
(5) Rear defogger condenser
(6) Defogger wire
(7) Wiring harness

IDI-5
INSTRUMENTATION/DRIVER INFO
Combination Meter System
2. CHECK POWER SUPPLY AND GROUND CIRCUIT
3. CHECK VEHICLE SPEED SENSOR
Step Check Yes No
1 CHECK POWER SUPPLY FOR COMBINA-
TION METER.
1) Remove the combination meter. IDI-10, REMOVAL, Combination Meter
Assembly.>
2) Disconnect the combination meter harness
connector.
3) Turn the ignition switch to ON.
4) Measure the voltage between combination
meter connector and chassis ground.
Connector & terminal
(i10) No. 9 (+) — Chassis ground (
−):Is the voltage more than 10 V? Go to step 2.Check the harness
for open or short
between ignition
switch and combi-
nation meter.
2 CHECK POWER SUPPLY FOR COMBINA-
TION METER.
Measure the voltage between combination
meter connector and chassis ground.
Connector & terminal
(i10) No. 8 (+) — Chassis ground (
−):Is the voltage more than 10 V? Go to step 3.Check the harness
for open or short
between fuse and
combination
meter.
3 CHECK GROUND CIRCUIT OF COMBINA-
TION METER.
1) Turn the ignition switch to OFF.
2) Measure the resistance of harness
between combination meter connector and
chassis ground.
Connector & terminal
(i10) No. 10 — Chassis ground:Is the resistance less than 10
Ω?Replace the com-
bination meter
printed circuit.Repair the wiring
harness.
Step Check Yes No
1 CHECK VEHICLE SPEED SENSOR.
1) Lift-up the vehicle and support it with rigid
racks.
2) Remove the combination meter with har-
ness connector.
3) Drive the vehicle at a speed greater than 20
km/h (12 MPH).
Warning:
Be careful not to get caught in the running
wheels.
4) Measure the voltage between combination
meter connector and chassis ground.
Connector & terminal
(i10) No. 12 (+) — Chassis ground (
−):Is the voltage 1 V ← → 5 V? Check the speed-
ometer. IDI-13, INSPEC-
TION, Speedome-
ter.>Go to step 2.
2 CHECK VEHICLE SPEED SENSOR POWER
SUPPLY.
1) Turn the ignition switch to OFF.
2) Disconnect the vehicle speed sensor har-
ness connector.
3) Turn the ignition switch to ON.
4) Measure the voltage between vehicle
speed sensor connector and engine ground.
Connector & terminal
(B17) No. 3 (+) — Engine ground (
−):Is the voltage more than 10 V? Go to step 3.Check the harness
for open or short
between ignition
switch and vehicle
speed sensor.

SL-9
SECURITY AND LOCK
Door Lock Control System
2. Door Lock Control System
A: WIRING DIAGRAM
1. DOOR LOCK CONTROL

B: INSPECTION
1. SYMPTOM CHART
Symptom Repair order Reference
The door lock control system does
not operate.1. Check the fuse. INSPECTION, Door Lock Control
System.>
2. Check the power supply and ground circuit for
keyless entry control module (without double lock)
or double lock module (with double lock). SUPPLY AND GROUND CIRCUIT,
INSPECTION, Door Lock Control
System.>
3. Check the door lock switch and the circuit. LOCK SWITCH AND CIRCUIT,
INSPECTION, Door Lock Control
System.>
4. Check the door lock actuator and the circuit. LOCK ACTUATOR AND CIRCUIT,
INSPECTION, Door Lock Control
System.>
The door lock switch does not oper-
ate.Check the door lock switch and the circuit. LOCK SWITCH AND CIRCUIT,
INSPECTION, Door Lock Control
System.>
A specific door lock actuator does not
operate.Check the door lock actuator and the circuit. LOCK ACTUATOR AND CIRCUIT,
INSPECTION, Door Lock Control
System.>
The key cylinder lock switch does not
operate. (with double lock)Check the key cylinder lock switch and circuit. INDER LOCK SWITCH AND CIR-
CUIT, INSPECTION, Door Lock
Control System.>
The double lock does not operate.
(with double lock)Check the door lock actuator (double lock) and cir-
cuit. LOCK ACTUATOR (DOUBLE
LOCK) AND CIRCUIT, INSPEC-
TION, Door Lock Control System.>

SL-10
SECURITY AND LOCK
Door Lock Control System
2. CHECK FUSE
3. CHECK POWER SUPPLY AND GROUND CIRCUIT
Step Check Yes No
1 CHECK FUSE.
Remove and visually check the fuse No. 2 (in
the main fuse box).In the fuse blown out? Replace the fuse
with a new one.Check the power
supply and ground
circuit. SL-10, CHECK
POWER SUPPLY
AND GROUND
CIRCUIT,
INSPECTION,
Door Lock Control
System.>
Step Check Yes No
1 CHECK POWER SUPPLY.
1) Disconnect the keyless entry control mod-
ule or double lock module harness connector.
2) Measure the voltage between the harness
connector terminal and chassis ground.
Connector & terminal
Without double lock:
(B176) No. 5, 16 (+) — Chassis ground (
−
):
With double lock:
(B324) No. 7, 8 (+) — Chassis ground (
−):Is the voltage more than 10 V? Go to step 2.Check the harness
for open circuits or
shorts between
the keyless entry
control module or
double lock mod-
ule and the fuse.
2 CHECK GROUND CIRCUIT.
Measure the resistance between the harness
connector terminal and chassis ground.
Connector & terminal
Without double lock:
(B176) No. 6, 14 — Chassis ground:
With double lock:
(B324) No. 9 — Chassis ground:Is the resistance less than 10
Ω?The power supply
and ground circuit
is OK.Repair the har-
ness.

SL-15
SECURITY AND LOCK
Keyless Entry System
C: INSPECTION
1. SYMPTOM CHART
Symptom Repair order Reference
None of the functions of keyless entry
system operate.1. Check the transmitter battery. TER BATTERY, INSPECTION, Key-
less Entry System.>
2. Check the fuse. INSPECTION, Keyless Entry Sys-
tem.>
3. Check the keyless entry control module power
supply and ground circuit. SUPPLY AND GROUND CIRCUIT,
INSPECTION, Keyless Entry Sys-
tem.>
4. Replace the keyless entry control module. Module.>
The transmitter cannot be registered. 1. Check the transmitter battery. TER BATTERY, INSPECTION, Key-
less Entry System.>
2. Check the registration connector circuit. TION CONNECTOR CIRCUIT,
INSPECTION, Keyless Entry Sys-
tem.>
3. Check the door lock switch and circuit. SWITCH, INSPECTION, Keyless
Entry System.>
4. Replace the keyless entry control module. Module.>
The door lock or unlock does not
operate.
N
OTE:
If the door lock control system does
not operate when using the door lock
switch, check the door lock control
system. Door Lock Control System.>1. Check the transmitter battery. TER BATTERY, INSPECTION, Key-
less Entry System.>
2. Make sure the registration connector is not
connected.Make sure the registration connector
is not connected because keyless
entry system does not operate during
the registration connector connected.
3. Check the key warning switch. ING SWITCH, INSPECTION, Keyless
Entry System.>
4. Check the door switch. SWITCH, INSPECTION, Keyless
Entry System.>
5. Check output signal to double lock module.
(With double lock) SIGNAL TO DOUBLE LOCK MOD-
ULE, INSPECTION, Keyless Entry
System.>
6. Replace the keyless entry control module. Module.>
The hazard light does not operate. 1. Check the hazard light operation. LIGHT OPERATION, INSPECTION,
Keyless Entry System.>
2. Replace the keyless entry control module. Module.>