2004 SUBARU FORESTER fuse

CC(H4DOTC 2.5)-19
CRUISE CONTROL SYSTEM (DIAGNOSTIC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
Step Check Yes No
1 CHECK STOP LIGHT SWITCH AND BRAKE
SWITCH CIRCUIT.
1) Turn the ignition switch to OFF.
2) Disconnect the stop light switch and brake
switch harness connector.
3) Turn the ignition switch to ON.
4) Measure the voltage between harness con-
nector terminal and chassis ground.
Connector & terminal
(B65) No. 2 (+) — Chassis ground (
−): Is the voltage more than 10 V? Go to step 2. Check the fuse
No. 16 (in fuse &
relay box).
 Check the har-
ness for open or
short between
stop light/brake
switch and fuse &
relay box.
2 CHECK STOP LIGHT SWITCH AND BRAKE
SWITCH CIRCUIT.
Measure the voltage between harness connec-
tor terminal and chassis ground.
Connector & terminal
(B65) No. 1 (+) — Chassis ground (
−): Is the voltage more than 10 V? Go to step 3. Check the fuse
No. 11 (in fuse &
relay box).
 Check the har-
ness for open or
short between
stop light/brake
switch and fuse &
relay box.
 Check the clutch
switch and circuit.
3 CHECK STOP LIGHT SWITCH AND BRAKE
SWITCH CIRCUIT.
1) Turn the ignition switch to OFF.
2) Disconnect the ECM harness connector.
3) Measure the resistance between ECM har-
ness connector terminal and stop light switch
and brake switch harness connector terminal.
Connector & terminal
(B136) No. 8 — (B65) No. 3:
(B136) No. 9 — (B65) No. 4: Is the resistance less than 10
Ω? Go to step 4.Repair the har-
ness.
4 CHECK STOP LIGHT SWITCH AND BRAKE
SWITCH.
Remove and check the stop light switch and
brake switch. Switch.>Are the stop light switch and
brake switch OK? Stop light switch
and brake switch
circuit are OK.Replace the stop
light switch and
brake switch.

CC(H4DOTC 2.5)-21
CRUISE CONTROL SYSTEM (DIAGNOSTIC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
Step Check Yes No
1 CHECK CLUTCH SWITCH CIRCUIT.
1) Turn the ignition switch to OFF.
2) Disconnect the clutch switch harness con-
nector.
3) Turn the ignition switch to ON.
4) Measure the voltage between harness con-
nector terminal and chassis ground.
Connector & terminal
(B107) No. 2 (+) — Chassis ground (
−):Is the voltage more than 10 V? Go to step 2. Check the fuse
No. 11 (fuse &
relay box).
 Check the har-
ness for open or
short between
clutch switch and
fuse & relay box.
2 CHECK CLUTCH SWITCH CIRCUIT.
1) Turn the ignition switch to OFF.
2) Disconnect the ECM harness connector.
3) Measure the resistance between clutch
switch harness connector terminal and ECM
harness connector terminal.
Connector & terminal
(B107) No. 1 — (B134) No. 1:Is the resistance less than 10
Ω? Go to step 3.Repair the har-
ness.
3 CHECK CLUTCH SWITCH.
Remove and check the clutch switch. CC-11, Clutch Switch.>Is the clutch switch OK? Clutch switch cir-
cuit is OK.Replace the clutch
switch.

CC(H4DOTC 2.5)-25
CRUISE CONTROL SYSTEM (DIAGNOSTIC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
Step Check Yes No
1 CHECK IGNITION SWITCH CIRCUIT.
1) Turn the ignition switch to OFF.
2) Disconnect the ECM harness connector.
3) Turn the ignition switch to ON.
4) Measure the voltage between harness con-
nector terminal and chassis ground.
Connector & terminal
(B137) No. 14 (+) — Chassis ground (
−): Is the voltage more than 10 V? Check the poor
contact of ECM
connector. Check the fuse
No. 11 (fuse &
relay box).
 Check the har-
ness for open or
short between
ignition switch and
ECM.

CC(H4DOTC 2.5)-27
CRUISE CONTROL SYSTEM (DIAGNOSTIC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
Step Check Yes No
1 CHECK TRANSMISSION TYPE.Is the target MT model? Go to step 2.Go to step 6.
2 CHECK HARNESS BETWEEN BATTERY
AND VEHICLE SPEED SENSOR.
1) Turn the ignition switch to OFF.
2) Disconnect the harness connector from
vehicle speed sensor.
3) Turn the ignition switch to ON.
4) Measure the voltage between vehicle
speed sensor harness connector terminal and
chassis ground.
Connector & terminal
(B17) No. 3 (+) — Chassis ground (
−):Is the voltage more than 10 V? Go to step 3.Check the harness
for open or short
between fuse and
vehicle speed sen-
sor.
3 CHECK HARNESS BETWEEN ECM AND VE-
HICLE SPEED SENSOR.
1) Turn the ignition switch to OFF.
2) Disconnect the harness connector from
ECM.
3) Measure the resistance between vehicle
speed sensor harness connector terminal and
ECM harness connector terminal.
Connector & terminal
(B17) No. 1 — (B135) No. 26:Is the resistance less than 10
Ω?Go to step 4.Repair the har-
ness.
4 CHECK HARNESS BETWEEN VEHICLE
SPEED SENSOR AND ENGINE GROUND.
1) Turn the ignition switch to OFF.
2) Measure the resistance between vehicle
speed sensor harness connector terminal and
engine ground.
Connector & terminal
(B17) No. 2 — Engine ground:Is the resistance less than 10
Ω?Go to step 5.Repair the har-
ness.
5 CHECK VEHICLE SPEED SENSOR.
1) Connect the harness connector to vehicle
speed sensor.
2) Lift-up the vehicle and support with rigid
racks.
3) Drive the vehicle at speed greater than 20
km/h (12 MPH).
Warning:
Be careful not to be caught up by the run-
ning wheels.
4) Measure the voltage between ECM har-
ness connector terminal and chassis ground.
Connector & terminal
(B135) No. 26 (+) — Chassis ground (
−):Is the voltage 1 V ← → 5 V? Check the poor
contact of ECM
connector.Replace the vehi-
cle speed sensor.
6 CHECK HARNESS BETWEEN ECM AND
TCM.
1) Turn the ignition switch to OFF.
2) Disconnect the harness connector from
ECM and TCM.
3) Measure the resistance between ECM har-
ness connector terminal and TCM harness
connector terminal.
Connector & terminal
(B135) No. 26 — (B56) No. 1:Is the resistance less than 10
Ω?Go to step 7.Repair the har-
ness.

IM-11
IMMOBILIZER (DIAGNOSTIC)
Diagnostics Chart for Immobilizer Warning Light
Step Check Yes No
1 CHECK IMMOBILIZER WARNING LIGHT.
1) Turn the ignition switch to OFF.
2) Disconnect the harness connector from
IMM ECM.
3) Connect a resistor (750 Ω) between IMM
ECM harness connector terminal No. 9 and
chassis ground.Does the immobilizer warning
light illuminate?Go to step 2.Go to step 5.
2 CHECK IMM ECM GROUND CIRCUIT.
Measure the resistance between IMM ECM
harness connector terminal and chassis
ground.
Connector & terminal
(B141) No. 2, No. 3 — Chassis ground:Is the resistance less than 10
Ω?Go to step 3.Repair the open
circuit of IMMECM
ground circuit.
3 CHECK IMM ECM IGNITION CIRCUIT.
1) Turn the ignition switch to ON. (engine
OFF.)
2) Measure the voltage between IMM ECM
harness connector terminal and chassis
ground.
Connector & terminal
(B141) No. 12 (+) — Chassis ground(
−):Is the voltage more than 10 V? Go to step 4.Check the harness
for open or short
between IMM
ECM and ignition
switch.
4 CHECK IMM ECM POWER SUPPLY CIR-
CUIT.
1) Turn the ignition switch to OFF.
2) Measure the voltage between IMM ECM
harness connector terminal and chassis
ground.
Connector & terminal
(B141) No. 10, No. 11 (+) — Chassis
ground(
−):Is the voltage more than 10 V? Replace the IMM
ECM 37, Immobilizer
Control Module.>
and then replace
all ignition keys
(including the tran-
sponder). Then
perform teaching
operation. Refer to
teaching opera-
tion manual (Pub.
No. S0820GZ).Check the harness
for open or short
between IMM
ECM and fuse.
5 CHECK COMBINATION METER CIRCUIT.
1) Remove the combination meter. IDI-10, Combination Meter Assembly.>
2) Measure the voltage between combination
meter harness connector terminal and chassis
ground.
Connector & terminal
(i10) No. 8 (+) — Chassis ground (
−):Is the voltage more than 10 V? Go to step 6.Check the harness
for open or short
between combina-
tion meter and
fuse.
6 CHECK COMBINATION METER CIRCUIT.
Measure the resistance between IMM ECM
harness connector terminal and combination
meter harness connector terminal.
Connector & terminal
LHD model
(B141) No. 9 — (i12) No. 4:
RHD model
(B141) No. 9 — (i11) No. 5:Is the resistance less than 10
Ω?Faulty LED.
Replace the com-
bination meter
printed circuit.
DISASSEMBLY,
Combination
Meter Assembly.>Repair the har-
ness or connector.

IM-13
IMMOBILIZER (DIAGNOSTIC)
Diagnostics Chart for Immobilizer Warning Light
Step Check Yes No
1 CHECK POWER SUPPLY CIRCUIT.
1) Disconnect the harness connector from key
warning switch.
2) Measure the voltage between key warning
switch harness connector terminal and chassis
ground.
Connector & terminal
(B74) No. 2 (+) — Chassis ground (
−):Is the voltage more than 10 V? Go to step 2.Check the harness
for open or short
between key warn-
ing switch and
fuse.
2 CHECK KEY WARNING SWITCH.
1) Insert the ignition key to the ignition switch.
(OFF or ACC position)
2) Measure the resistance between key warn-
ing switch connector terminals.
Te r m i n a l
No. 1 — No. 2:Is the resistance less than 1
Ω?Go to step 3.Replace the key
warning switch.
3 CHECK KEY WARNING SWITCH.
1) Remove the ignition key from the ignition
switch.
2) Measure the resistance between key warn-
ing switch connector terminals.
Te r m i n a l
No. 1 — No. 2:Is the resistance more than
1 MΩ?Go to step 4.Replace the key
warning switch.
4 CHECK HARNESS BETWEEN KEY WARN-
ING SWITCH AND IMM ECM.
1) Disconnect the harness connector from key
warning switch.
2) Disconnect the harness connector from
IMM ECM.
3) Measure the resistance between key warn-
ing switch harness connector terminal and
IMM ECM harness connector terminal.
Connector & terminal
(B74) No. 1 — (B141) No. 4:Is the resistance less than 10
Ω?Replace the IMM
ECM 37, Immobilizer
Control Module.>
and then replace
all ignition keys
(including the tran-
sponder). Then
perform teaching
operation. Refer to
teaching opera-
tion manual (Pub.
No. S0820GZ).Repair the har-
ness between key
warning switch
and IMM ECM.

IM-17
IMMOBILIZER (DIAGNOSTIC)
Diagnostics Procedure with Diagnostic Trouble Code (DTC)
Step Check Yes No
1 CHECK POWER SUPPLY CIRCUIT OF IMM
ECM.
1) Turn the ignition switch to OFF.
2) Disconnect the harness connector from
IMM ECM.
3) Measure the voltage between IMM ECM
harness connector terminal and chassis
ground.
Connector & terminal
(B141) No. 10, No. 11 (+) — Chassis
ground(
−):Is the voltage more than 10 V? Go to step 2.Check the harness
for open or short
between IMM
ECM and fuse.
2 CHECK IGNITION SWITCH CIRCUIT.
1) Turn the ignition switch to ON. (engine
OFF.)
2) Measure the voltage between IMM ECM
harness connector terminal and chassis
ground.
Connector & terminal
(B141) No. 12 (+) — Chassis ground(
−):Is the voltage more than 10 V? Go to step 3.Check the harness
for open or short
between IMM
ECM and ignition
switch.
3 CHECK GROUND CIRCUIT OF IMM ECM.
1) Turn the ignition switch to OFF.
2) Measure the resistance between IMM ECM
harness connector terminal and chassis
ground.
Connector & terminal
(B141) No. 2, No. 3 — Chassis ground:Is the resistance less than 10
Ω?Go to step 4.Repair the open
circuit of IMMECM
ground circuit.
4 CHECK HARNESS BETWEEN IMM ECM
AND ECM.
1) Disconnect the harness connector from
ECM and IMM ECM.
2) Measure the resistance between IMM ECM
harness connector terminal and ECM harness
connector terminal.
Connector & terminal
Non-turbo LHD model
(B141) No. 1 — (B137) No. 17:
Non-turbo RHD model
(B141) No. 1 — (B137) No. 18:
Turbo model
(B141) No. 1 — (B137) No. 19:Is the resistance less than 10
Ω?Go to step 5.Repair the open
circuit of harness
between IMM
ECM and ECM.
5 CHECK HARNESS BETWEEN IMM ECM
AND ECM.
Measure the resistance between IMM ECM
harness connector terminal and ECM harness
connector terminal.
Connector & terminal
Non-turbo LHD model
(B141) No. 6 — (B137) No. 18:
Non-turbo model
(B141) No. 6 — (B137) No. 17:
Turbo model
(B141) No. 6 — (B137) No. 27:Is the resistance less than 10
Ω?Go to step 6.Repair the open
circuit of harness
between IMM
ECM and ECM.

PC-2
PRECAUTION
Precaution
1. Precaution
A: PRECAUTION
Please clearly understand and adhere to the follow-
ing general precautions. They must be strictly fol-
lowed to avoid minor or serious injury to the person
doing the work or people in the area.
1. ABS
Handle the ABS as a total system. Do not disas-
semble or attempt to repair individual parts. Doing
so could prevent the ABS system from operating
when needed or cause it to operate incorrectly and
result in injury.
2. BRAKE FLUID
If brake fluid gets in your eyes or on your skin, do
the following:
 Wash out your eyes and seek immediate medical
attention.
 Wash your skin with soap and then rinse thor-
oughly with water.
3. RADIATOR FAN
The radiator fan may rotate without warning, even
when the engine is not on. Do not place your hand,
cloth, tools, or other items near the fan at any time.
4. ROAD TESTS
Always conduct road tests in accordance with traf-
fic rules and regulations to avoid bodily injury and
interrupting traffic.
5. AIRBAG
To prevent bodily injury from unexpected deploy-
ment of airbags and unnecessary maintenance, fol-
low the instructions in this manual when performing
maintenance on airbag components or nearby, and
airbag wiring harnesses or nearby.
To prevent unexpected deployment, perform the
steps below and then wait at least 20 seconds to
discharge electricity before beginning work.
 Step 1: Turn the ignition switch OFF.
 Step 2: Disconnect the ground cable from bat-
tery.
6. AIRBAG DISPOSAL
To prevent bodily injury from unexpected airbag
deployment, do not dispose airbag modules in the
same way as other refuse. Follow all government
regulations concerning disposal of refuse.
7. AIRBAG MODULE
Adhere to the following when handling and storing
the airbag module to prevent bodily injury from un-
expected deployment:
 Do not hold the harnesses or connectors to carry
module.
 Do not face the bag in the direction that it opens
towards yourself or other people.
 Do not face the bag in the direction that it opens
towards the floor or walls.
8. AIRBAG SPECIAL TOOLS
To prevent unexpected deployment, only use spe-
cial tools.
9. WINDOW
Always wear safety glasses when working around
any glass to prevent glass fragments from damag-
ing your eyes.
10.WINDOW ADHESIVE
Always use the recommended or alternative adhe-
sive when attaching glass to prevent it from coming
loose and falling, resulting in accidents and injury.