meter SUBARU FORESTER 2004 Service Owner's Manual

AB-42
AIRBAG SYSTEM (DIAGNOSTIC)
Airbag Warning Light Failure
Step Check Yes No
1 CHECK COMBINATION METER.
Turn the ignition switch to ON, and confirm that
warning lights equipped in the combination
meter are turned on.Do the warning lights not for
airbag turn on?Go to step 2.Repair the combi-
nation meter
power supply.
Combination
Meter System.>
2 CHECK FUSE NO. 14 (IN FUSE&RELAY
BOX).
Remove the fuse No. 14 and perform visual
inspection.Is the fuse No. 14 (in fuse &
relay box) blown out?Replace the fuse
No. 14. If fuse No.
14 blows again, go
to step 3. Go to step 3.
3 CHECK AIRBAG WARNING LIGHT CIRCUIT
(IN COMBINATION METER).
1) Turn the ignition switch to OFF, disconnect
the battery ground cable, and wait more than
20 seconds.
2) Disconnect the connector (AB1) from
(B31).
3) Connect the battery ground cable and turn
the ignition switch to ON.Is the airbag warning light
turned on?Go to step 4.Replace the airbag
warning light bulb
or combination
meter printed cir-
cuit. 10, Combination
Meter Assembly.>
4 CHECK AIRBAG MAIN HARNESS.
1) Turn the ignition switch to OFF, disconnect
the battery ground cable, and wait more than
20 seconds.
2) Connect the connector (AB1) to (B31).
3) Disconnect the connector (AB3) from the
airbag control module. Control Module.>
4) Connect the battery ground cable and turn
the ignition switch to ON.Is the airbag warning light
turned on?Replace the airbag
control module.
Airbag Control
Module.>Replace the airbag
main harness with
body harness.

SB-8
SEAT BELT SYSTEM
Seat Belt Warning System
6 CHECK HARNESS BETWEEN SEAT BELT
SWITCH AND CHASSIS GROUND.
Measure the resistance of harness between
seat belt switch and chassis ground.
Connector & terminal
(R8) No. 1 — Chassis ground:Is the resistance more than 1
MΩ?Go to step 7.Repair the open
circuit of harness
between seat belt
switch and chas-
sis ground.
7 CHECK SEAT BELT SWITCH.
1) Hold the tang plate disconnected from seat
belt buckle.
2) Measure the resistance between seat belt
switch terminals.
Te r m i n a l s
(R8) No. 1 — (R8) No. 2:Is the resistance less than 1
Ω?Go to step 8.Replace the inner
belt assembly.
8 CHECK SEAT BELT SWITCH.
1) Insert the tang plate into seat belt buckle.
2) Measure the resistance between seat belt
switch terminals.
Te r m i n a l s
(R8) No. 1 — (R8) No. 2:Is the resistance more than 1
MΩ?Go to step 9.Replace the inner
belt assembly.
9 CHECK OPERATION OF SPEEDOMETER IN
COMBINATION METER.
Check the speedometer indicates vehicle
speed correctly.Does the speedometer operate
correctly?Go to step 10.Check the speed-
ometer circuit.
10 CHECK VEHICLE MODEL.
Check the model of vehicle.Is the vehicle MT model? Go to step 11.Go to step 13.
11 CHECK HARNESS BETWEEN VEHICLE
SPEED SENSOR AND SEAT BELT TIMER
MODULE.
1) Turn the ignition switch to OFF.
2) Disconnect the connector of vehicle speed
sensor.
3) Measure the resistance between vehicle
speed sensor harness connector and seat belt
timer module connector.
Connector & terminal
(B17) No. 1 — (B44) No. 7:Is the resistance less than 10
Ω?Go to step 12.Repair the open
harness between
vehicle speed sen-
sor and seat belt
timer module.
12 CHECK HARNESS BETWEEN VEHICLE
SPEED SENSOR AND SEAT BELT TIMER
MODULE.
Measure the resistance between seat belt
timer module harness connector and chassis
ground.
Connector & terminal
(B44) No. 7 — Chassis ground:Is the resistance more than 1
MΩ?Go to step 15.Repair the short of
harness.
13 CHECK HARNESS BETWEEN TCU AND
SEAT BELT TIMER MODULE.
1) Turn the ignition switch to OFF.
2) Disconnect the connector of TCU.
3) Measure the resistance of harness
between TCU harness connector and seat belt
timer module harness connector
Connector & terminal
(B56) No. 17 — (B44) No. 7:Is the resistance less than 10
Ω?Go to step 14.Repair the open
harness between
TCU and seat belt
timer module. Step Check Yes No

SB-9
SEAT BELT SYSTEM
Seat Belt Warning System
14 CHECK HARNESS BETWEEN TCU AND
SEAT BELT TIMER MODULE.
Measure the resistance between seat belt
timer module harness connector and chassis
ground.
Connector & terminal
(B44) No. 7 — Chassis ground:Is the resistance less than 10
Ω?Go to step 15.Repair the short of
harness.
15 CHECK SEAT BELT TIMER MODULE OUT-
PUT SIGNAL.
1) Turn the ignition switch to ON.
2) Measure the voltage between seat belt
timer module harness connector and chassis
ground.
Connector & terminal
(B44) No. 2 (+) — Chassis ground (–):Is the voltage more than 10 V? Go to step 16.Check the wiring
harness and com-
bination meter,
and then repair or
replace them.
16 CHECK POOR CONTACT.
Check the poor contact of seat belt warning
light circuit.Is there any poor contact
occurs?Repair the poor
contact.Go to step 17.
17 CHECK SEAT BELT TIMER MODULE.
1) Connect all connectors.
2) Lift-up the vehicle and place rigid racks.
NOTE:
Raise all wheels off floor.
3) Hold the tang plate disconnected from seat
belt buckle.
4) Start the engine, and set the vehicle speed
less than 19 km/h (12 MPH)
N
OTE:
The speed difference between front and rear
wheels may light the ABS warning light, but this
indicates no malfunction. When diagnosis is fin-
ished, perform the ABS memory clearance pro-
cedure of OBD system. Memory Mode.>
Check seat belt warning light comes on.Does the seat belt warning
light come on?Go to step 18.Replace the seat
belt timer module.
18 CHECK SEAT BELT TIMER MODULE.
1) Connect all connectors.
2) Lift-up the vehicle and place rigid racks.
N
OTE:
Raise all wheels off floor.
3) Hold the tang plate disconnected from seat
belt buckle.
4) Start the engine, and set the vehicle speed
more than 25 km/h (16 MPH).
NOTE:
The speed difference between front and rear
wheels may light the ABS warning light, but this
indicates no malfunction. When diagnosis is fin-
ished, perform the ABS memory clearance pro-
cedure of OBD system. Memory Mode.>
Check seat belt warning light comes on and
buzzer beeps.Does the seat belt warning
light come on and buzzer
beep?Temporary poor
contact of connec-
tor or harness may
be the cause.
Check the poor
contact.Replace the seat
belt timer module. Step Check Yes No

WW-19
WIPER AND WASHER SYSTEM
Wiper Control Relay
12.Wiper Control Relay
A: REMOVAL
1) Disconnect the ground cable from battery.
2) Remove the right quarter lower trim. 45, REMOVAL, Rear Quarter Trim.>
3) Loosen the nut to remove control unit.
B: INSTALLATION
Install in the reverse order of removal.
C: INSPECTION
1) Disconnect the connector from the wiper control
relay.
2) Connect the positive (+) lead from the battery to
terminal 8 and the negative (−) lead to terminal 6.
Connect the positive (+) lead from the voltmeter to
terminal 3 and the negative (−) lead to ground.3) Measure the voltage when the wiper relay is op-
erated.
If operation is not as specified, replace the switch.
WW-00034
WW-00035
2143
6587
(A) Switch position
(B) Voltage
(C) ON
(D) 12 V
(E) 0 V
(F) 9±2 sec.
WW-00055
(A) (B)
(C)(D)
(E)
(F)

GW-31
GLASS/WINDOW/MIRROR
Rear Window Defogger
17.Rear Window Defogger
A: INSPECTION
CAUTION:
When wiping stain on glass off with cloth, use a
dry and soft cloth and move it in the direction of
heat wire extension to avoid damage to heat
wire.
1) Turn the ignition switch to ON.
2) Turn the defogger switch to ON.
3) Wrap the tips of tester pins with aluminum foil to
avoid damage to heat wire.
4) Measure the voltage at wire center with DC volt-
meter.
Standard voltage:
Approx. 6 V
NOTE:
 If the measured value is 12 volts, heat wire is
open between wire center and positive (+) end.
 If zero volt, heat wire is open between wire cen-
ter and ground. 5) Apply positive lead of voltmeter to positive terminal
of heat wire, and then move the negative lead along
the wire up to negative terminal end. If voltage chang-
es from zero to several volts during movement of
lead, heat wire is open at the voltage change point.
B: REPAIR
1) Clean the broken portion with alcohol or white
gasoline.
2) Mask both side of wire with thin film.
3) Apply conductive silver composition (DUPONT
No. 4817) to broken portion.
4) After repair, check the wire.
(1) Tester probe
(2) Tin foil
(3) Heat wire
(4) PRESS
(1) Center
Voltage Criteria
Approx. 6 V OK
Approx. 12 V or 0 V Broken
GW-00076
(2)(3) (4)
(1)
GW-00077
(1)
(1) Broken portion
(2) Masking thin film
(3) Broken wire
(4) Conductive silver composition (DUPONT No.
4817)
GW-00078
(2)(3)
(4)
(1)

INSTRUMENTATION/DRIVER INFO
IDI
Page
1. General Description ....................................................................................2
2. Combination Meter System .........................................................................3
3. Combination Meter Assembly ...................................................................10
4. Speedometer.............................................................................................13
5. Tachometer ...............................................................................................14
6. Fuel Gauge ...............................................................................................15
7. Water Temperature Gauge .......................................................................16
8. Ambient Sensor.........................................................................................17

IDI-2
INSTRUMENTATION/DRIVER INFO
General Description
1. General Description
A: SPECIFICATION
B: CAUTION
 Be careful not to damage meters and instrument panel.
 Be careful not to damage meter glasses.
 Make sure that electrical connector is connected securely.
 After installation, make sure that each meter operates normally.
 Use gloves to avoid damage and getting fingerprints on the glass surface and meter surfaces.
 Do not apply excessive force to the printed circuit.
 Do not drop or otherwise apply impact.
C: PREPARATION TOOL
1. GENERAL TOOL
Combination meterSpeedometer Electric pulse type
Temperature gauge Cross coil type
Fuel gauge Cross coil type
Tachometer Electric pulse type
Turn signal indicator light 14 V — 2 W
Charge indicator light 14 V — 1.4 W
Oil pressure indicator light LED
ABS warning light 14 V — 1.4 W
Malfunction indicator light LED
HI-beam indicator light 14 V — 2 W
Door open warning light LED
Seat belt warning light LED
Brake fluid and parking brake warning
light14 V — 2 W
FWD indicator light LED
AIRBAG warning light LED
Meter illumination light 14 V — 3.4 W, 14 V — 2 W
AT OIL TEMP. warning light LED
LO indicator light LED
HOLD indicator light LED
Immobilizer indicator light LED
Rear differential oil temperature warn-
ing light14 V — 2 W
Cruise indicator light 14 V — 1.4 W
Rear fog light indicator light 14 V — 2 W
POWER indicator light 14 V — 1.4 W
Low fuel warning light LED
AT select lever position indicator light 14 V — 100 mA
LCD back light 14 V — 1.4 W
TOOL NAME REMARKS
Circuit tester Used for measuring resistance and voltage.

IDI-3
INSTRUMENTATION/DRIVER INFO
Combination Meter System
2. Combination Meter System
A: WIRING DIAGRAM
1. COMBINATION METER

2. OUTSIDE TEMPERATURE INDICATOR

IDI-4
INSTRUMENTATION/DRIVER INFO
Combination Meter System
B: INSPECTION
CAUTION:
When measuring voltage and resistance of the ECM, TCM, or each sensor, use a tapered pin with a
diameter of less than 0.64 mm (0.025 in) in order to avoid poor contact. Do not insert the pin more
than 2 mm (0.08 in).
1. SYMPTOM CHART
Symptom Repair order Reference
Combination meter assembly does not operate. (1) Power supply
(2) Ground circuit POWER SUPPLY AND
GROUND CIRCUIT,
INSPECTION, Combi-
nation Meter System.>
Speedometer does not operate. (1) (MT model) Vehicle speed sensor
(AT model) TCM
(2) Harness
(3) SpeedometerMT model: 5, CHECK VEHICLE
SPEED SENSOR,
INSPECTION, Combi-
nation Meter System.>
AT model: 6, CHECK TRANSMIS-
SION CONTROL MOD-
ULE (TCM),
INSPECTION, Combi-
nation Meter System.>
Tachometer does not operate. (1) ECM
(2) Harness
(3) Tachometer ENGINE CONTROL
MODULE (ECM),
INSPECTION, Combi-
nation Meter System.>
Fuel gauge does not operate. (1) Fuel level sensor
(2) Harness
(3) Fuel gauge FUEL LEVEL SEN-
SOR, INSPECTION,
Combination Meter
System.>
Water temperature gauge does not operate. (1) Engine coolant temperature sensor
(2) Harness
(3) Water temperature gauge ENGINE COOLANT
TEMPERATURE SEN-
SOR, INSPECTION,
Combination Meter
System.>
Outside temperature indicator does not operate. (1) Ambient sensor
(2) Harness
(3) Combination meter OUTSIDE TEMPERA-
TURE INDICATOR,
INSPECTION, Combi-
nation Meter System.>

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.