fuse SUBARU FORESTER 1999 Service Owner's Manual

6. DIAGNOSTICS ITEM 5
4F61 : CHECK FUSE.
Remove and visually check the fuse No. 6 (in main
fuse box).
:Is fuse No. 6 blown?
: Replace fuse (15 A).
: Go to step4F62.
4F62 : CHECK KEYLESS ENTRY CONTROL
MODULE.
1) Disconnect connector from keyless entry con-
trol module.
2) Insert the key to ignition switch (LOCK posi-
tion).
3) Measure voltage between keyless entry control
module connector (B176) and chassis ground.
Connector & terminal
(B176) No. 16 (+) Ð Chassis ground (þ):
B6M0963A
:Is the voltage more than 10 V?
: Replace keyless entry control module.

: Go to step4F63.4F63 : CHECK HARNESS CONNECTOR
BETWEEN BATTERY AND KEY
WARNING SWITCH.
1) Disconnect connector from key warning switch.
2) Measure voltage between key warning switch
connector (B74) and chassis ground.
Connector & terminal
(B74) No. 2 (+) Ð Chassis ground (þ):
B6M0964A
:Is the voltage more than 10 V?
: Go to step4F64.
: Repair wiring harness between battery
and key warning switch.
4F64 : CHECK HARNESS CONNECTOR
BETWEEN KEY WARNING SWITCH
AND KEYLESS ENTRY CONTROL
MODULE.
Measure resistance between key warning switch
connector (B74) and keyless entry control module
connector (B176).
Connector & terminal
(B74) No. 1 Ð (B176) No. 16:
B6M0965A
:Is the resistance less than 10W?
: Replace key warning switch.
: Repair wiring harness between key
warning switch and keyless entry control
module.
68
6-2[T4F6]DIAGNOSTICS
4. Keyless Entry System

5. Security System
A: PRECAUTION
1. SUPPLEMENTAL RESTRAINT SYSTEM
ªAIRBAGº
Airbag system wiring harness is routed near the
security control module.
CAUTION:
IAll airbag system wiring harness and con-
nectors are yellow. Do not use electrical test
equipment on these circuits.
IBe careful not to damage airbag system wir-
ing harness when servicing the security con-
trol module.
B: PRE-INSPECTION
1. FUSE
5B11 : CHECK FUSE.
Remove and visually check the fuse No. 7 (in main
fuse box).
:Is fuse No. 7 blown?
: Replace fuse (20 A).
: Go to step5B12.
5B12 : CHECK FUSE.
Remove and visually check the fuse No. 2 (in main
fuse box).
:Is fuse No. 2 blown?
: Replace fuse (15 A).
: Go to step5B21.
2. POWER SUPPLY CIRCUIT
5B21 : CHECK POWER SUPPLY CIRCUIT.
Measure voltage between main fuse box connec-
tor (F68) and chassis ground.
Connector & terminal
(F68) No. 4 (+) Ð Chassis ground (þ):
B6M1357A
:Is the voltage more than 10 V?
: Go to step5B22.
: Repair wiring harness between main
fuse box and battery.
5B22 : CHECK POWER SUPPLY CIRCUIT.
1) Disconnect connector from security control
module.
2) Measure voltage between security control mod-
ule connector (B93) and chassis ground.
Connector & terminal
(B93) No. 11 (+) Ð Chassis ground (þ):
B6M0967A
:Is the voltage more than 10 V?
: Go to step5B23.
: Repair wiring harness between security
control module and main fuse box.
69
[T5B2]6-2DIAGNOSTICS
5. Security System

5B23 : CHECK POWER SUPPLY CIRCUIT.
Measure voltage between main fuse box connec-
tor (F68) and chassis ground.
Connector & terminal
(F68) No. 2 (+) Ð Chassis ground (þ):
B6M1358A
:Is the voltage more than 10 V?
: Go to step5B24.
: Repair wiring harness between main
fuse box and battery.
5B24 : CHECK POWER SUPPLY CIRCUIT.
Measure voltage between security control module
connector (B93) and chassis ground.
Connector & terminal
(B93) No. 13 (+) Ð Chassis ground (þ):
B6M0968A
:Is the voltage more than 10 V?
: Go to step5B31.
: Repair wiring harness between security
control module and main fuse box.
3. GROUND CIRCUIT
5B31 : CHECK GROUND CIRCUIT.
Measure resistance between security control mod-
ule connector (B93) and chassis ground.
Connector & terminal
(B93) No. 14 (+) Ð Chassis ground:
B6M0969A
:Is the resistance less than 10W?
: Go to step5F11.
: Repair wiring harness between security
control module and chassis ground.
70
6-2[T5B2]DIAGNOSTICS
5. Security System

C: ELECTRICAL COMPONENTS LOCATION
S6M0454A
(1) Horn
(2) Keyless entry control module
(3) Security control module (under
console box)
(4) Security indicator light (in combi-
nation meter)(5) Horn relay (in main fuse box)
(6) Rear gate latch switch
(7) Interrupt relay (behind the fuse
box)
(8) Door switch(9) Passive arm connector (on driver
side front lower pillar)
71
[T5C0]6-2DIAGNOSTICS
5. Security System

5F117 : CHECK PASSIVE ARM.
1) Remove the driver's side sill cover. [W5A0].>
2) Connect the white connector (1-pin) at driver
side front lower pillar.
3) Close all doors and the rear gate.
:Does the arming automatically func-
tion after 1 minute?
: Go to step5F118.
: Go to step5 F 111.
5F118 : CHECK BATTERY DISCONNECT
PROTECTION.
1) Press the UNLOCK/DISARM button.
2) Connect the white connector (1-pin) at front pil-
lar lower.
3) Install the driver's side sill cover. [W5A0].>
4) Open the front hood.
5) Press the LOCK/ARM button.
6) Disconnect the ground cable from battery.
7) Connect the ground cable to battery.
:Does re-arming function automati-
cally?
: End of basic diagnostics procedure.
Press the UNLOCK/DISARM button,
and then close all doors and the rear
gate. Perform ignition switch position
turned LOCK to ON to LOCK.
: Replace security control module. to 6-2 [W14A1].>
2. DIAGNOSTICS ITEM 1
5F21 : CHECK FUSE.
Remove and visually check fuse No. 7 (in main
fuse box).
:Is fuse No. 7 blown?
: Replace fuse (20 A).
: Go to step5F22.
5F22 : CHECK FUSE.
Remove and visually check fuse No. 5 (in fuse
box).
:Is fuse No. 5 blown?
: Replace fuse (10 A).
: Go to step5F23.
5F23 : CHECK CLEARANCE LIGHT BULB.
Remove and visually check each clearance light
bulb.
:Is the bulb blown?
: Replace clearance light bulb.
: Go to step5F24.
5F24 : CHECK POWER SUPPLY FOR
CLEARANCE LIGHT.
Measure voltage between main fuse box connec-
tor (F68) and chassis ground.
Connector & terminal
(F68) No. 4 (+) Ð Chassis ground (þ):
B6M1357A
:Is the voltage more than 10 V?
: Go to step5F25.
: Repair wiring harness between main
fuse box and battery.
77
[T5F2]6-2DIAGNOSTICS
5. Security System

5F25 : CHECK POWER SUPPLY FOR
CLEARANCE LIGHT.
1) Disconnect connector from security control
module.
2) Measure voltage between security control mod-
ule connector (B93) and chassis ground.
Connector & terminal
(B93) No. 11 (+) Ð Chassis ground (þ):
B6M0974A
:Is the voltage more than 10 V?
: Go to step5F26.
: Repair wiring harness between security
control module and main fuse box.
5F26 : CHECK HARNESS CONNECTOR
BETWEEN SECURITY CONTROL
MODULE AND FUSE BOX.
1) Disconnect connector (B158) from fuse box.
2) Measure resistance between security control
module connector (B93) and fuse box connector
(B158).
Connector & terminal
(B93) No. 12 Ð (B158) No. 11:
S6M0457A
:Is the resistance less than 10W?
: Go to step5F27.
: Repair wiring harness between security
control module and fuse box.5F27 : CHECK FUSE BOX CIRCUIT.
1) Connect connector (B158) to fuse box.
2) Measure resistance between fuse box connec-
tor (B158) and (F41).
Connector & terminal
(B158) No. 11 Ð (F41) No. 1:
S6M0458A
:Is the resistance less than 10W?
: Go to step5F28.
: Repair or replace fuse box.
5F28 : CHECK FUSE BOX CIRCUIT.
Measure resistance between fuse box connector
(B158).
Connector & terminal
(B158) No. 10 Ð No. 11:
B6M1364B
:Is the resistance less than 10W?
: Go to step5F29.
: Repair or replace fuse box.
78
6-2[T5F2]DIAGNOSTICS
5. Security System

5F29 : CHECK HARNESS CONNECTOR
BETWEEN FRONT CLEARANCE
LIGHT AND FUSE BOX.
1) Disconnect connector from front clearance light
RH and fuse box.
2) Measure resistance between front clearance
light RH connector (F3) and fuse box connector
(F41).
Connector & terminal
(F3) No. 1 Ð (F41) No. 1:
B6M1365B
:Is the resistance less than 10W?
: Go to step5F210.
: Repair wiring harness between front
clearance light RH and fuse box.5F210 : CHECK HARNESS CONNECTOR
BETWEEN FRONT CLEARANCE
LIGHT AND FUSE BOX.
1) Disconnect connector from front clearance light
LH.
2) Measure resistance between front clearance
light LH connector (F19) and fuse box connector
(F41).
Connector & terminal
(F19) No. 1 Ð (F41) No. 1:
B6M1366B
:Is the resistance less than 10W?
: Go to step5F211.
: Repair wiring harness between front
clearance light LH and fuse box.
5F211 : CHECK HARNESS CONNECTOR
BETWEEN FRONT CLEARANCE
LIGHT AND CHASSIS GROUND.
Measure resistance between front clearance light
RH connector (F3) and chassis ground.
Connector & terminal
(F3) No. 2 (+) Ð Chassis ground (þ):
B6M0980C
:Is the resistance less than 10W?
: Go to step5F212.
: Repair wiring harness between front
clearance light RH and chassis ground.
79
[T5F2]6-2DIAGNOSTICS
5. Security System

5F212 : CHECK HARNESS CONNECTOR
BETWEEN FRONT CLEARANCE
LIGHT AND CHASSIS GROUND.
Measure resistance between front clearance light
LH connector (F19) and chassis ground.
Connector & terminal
(F19) No. 2 (+) Ð Chassis ground (þ):
B6M0981C
:Is the resistance less than 10W?
: Go to step5F213.
: Repair wiring harness between front
clearance light LH and chassis ground.
5F213 : CHECK HARNESS CONNECTOR
BETWEEN REAR CLEARANCE
LIGHT AND FUSE BOX.
1) Disconnect connector from rear clearance light
RH and fuse box.
2) Measure resistance between rear clearance
light RH connector (R26) and fuse box connector
(B158).
Connector & terminal
(R26) No. 1 Ð (B158) No. 10:
S6M0459A
:Is the resistance less than 10W?
: Go to step5F214.
: Repair wiring harness between rear
clearance light RH and fuse box.5F214 : CHECK HARNESS CONNECTOR
BETWEEN REAR CLEARANCE
LIGHT AND FUSE BOX.
1) Disconnect connector from rear clearance light
LH.
2) Measure resistance between rear clearance
light LH connector (R28) and fuse box connector
(B158).
Connector & terminal
(R28) No. 1 Ð (B158) No. 10:
S6M0460A
:Is the resistance less than 10W?
: Go to step5F215.
: Repair wiring harness between rear
clearance light LH and fuse box.
5F215 : CHECK HARNESS CONNECTOR
BETWEEN REAR CLEARANCE
LIGHT AND CHASSIS GROUND.
Measure resistance between rear clearance light
RH connector (R26) and chassis ground.
Connector & terminal
(R26) No. 4 (+) Ð Chassis ground (þ):
S6M0461A
:Is the resistance less than 10W?
: Go to step5F216.
: Repair wiring harness between rear
clearance light RH and chassis ground.
80
6-2[T5F2]DIAGNOSTICS
5. Security System

5F216 : CHECK HARNESS CONNECTOR
BETWEEN REAR CLEARANCE
LIGHT AND CHASSIS GROUND.
Measure resistance between rear clearance light
LH connector (R28) and chassis ground.
Connector & terminal
(R28) No. 4 (+) Ð Chassis ground (þ):
S6M0462A
:Is the resistance less than 10W?
: Replace security control module. to 6-2 [W14A1].>
: Repair wiring harness between rear
clearance light LH and chassis ground.
3. DIAGNOSTICS ITEM 2
5F31 : CHECK SECURITY INDICATOR
LIGHT COMES ON.
1) Disconnect connector from security control
module.
2) Measure resistance between security control
module connector (B93) and chassis ground.
Connector & terminal
(B93) No. 9 (+) Ð Chassis ground (þ):
B6M1369A
:Does the indicator light come on?
: Replace security control module. to 6-2 [W14A1].>
: Go to step5F32.
5F32 : CHECK POWER SUPPLY FOR
SECURITY INDICATOR LIGHT.
1) Disconnect connector from combination meter.
2) Measure voltage between combination meter
connector (i10) and chassis ground.
Connector & terminal
(i10) No. 1 (+) Ð Chassis ground (þ):
S6M0463A
:Is the voltage more than 10 V?
: Go to step5F33.
: Repair wiring harness between security
indicator light and main fuse box.
81
[T5F3]6-2DIAGNOSTICS
5. Security System

5. DIAGNOSTICS ITEM 4
5F51 : CHECK INPUT SIGNAL FOR
STARTER MOTOR.
1) Disconnect connector from starter motor.
2) Turn ignition switch to START.
3) Measure voltage between starter motor con-
nector (B14) and engine ground.
Connector & terminal
(B14) No. 1 (+) Ð Engine ground (þ):
OBD0100A
NOTE:
IOn AT vehicles, place the select lever in the P
or N position.
IOn MT vehicles, depress the clutch pedal.
:Is the voltage more than 10 V?
: Go to step5F52.
: Go to step5F53.
5F52 : CHECK GROUND CIRCUIT OF
STARTER MOTOR.
1) Turn ignition switch to OFF.
2) Disconnect terminal from starter motor.
3) Measure resistance between ground cable ter-
minal and engine ground.
:Is the resistance less than 5W?
: Check starter motor. [W100].>
: Repair or replace ground cable.
5F53 : CHECK FUSE.
Remove and visually check the fuse SBF-1 (in
main fuse box).
:Is fuse SBF-1 blown?
: Replace SBF fuse (80 A).
: Go to step5F54.5F54 : CHECK FUSE.
Remove and visually check the fuse SBF-4 (in
main fuse box).
:Is fuse SBF-4 blown?
: Replace SBF fuse (50 A).
: Go to step5F55.
5F55 : CHECK INTERRUPT RELAY.
1) Turn ignition switch to OFF.
2) Remove interrupt relay (behind the fuse box).
S6M0469
3) Check continuity between interrupt relay termi-
nals.
Terminals
No. 1 Ð No. 4:
B6M0992
:Does continuity exist?
: Go to step5F56.
: Replace interrupt relay.
84
6-2[T5F5]DIAGNOSTICS
5. Security System