2004 SUBARU FORESTER relay

AB-59
AIRBAG SYSTEM (DIAGNOSTIC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
Step Check Yes No
1 CHECK AIRBAG CONTROL MODULE.
1) Turn the ignition switch to OFF, disconnect
the battery ground cable, and wait more than
20 seconds.
2) Disconnect the connector (AB3) from the
airbag control module. Control Module.>
3) Connect the connector (1R) in test harness
R to connector (AB3).
4) Connect the battery ground cable and turn
the ignition switch to ON.
5) Measure the voltage between connector
(2R) in test harness R and chassis ground.
Connector & terminal
(2R) No. 1 (+) — Chassis ground (
−): Is the voltage more than 10 V? Replace the airbag
control module.
Airbag Control
Module.>Go to step 2.
2 CHECK AIRBAG MAIN HARNESS.
1) Turn the ignition switch to OFF, disconnect
the battery ground cable, and wait more than
20 seconds.
2) Disconnect the airbag connector (AB1)
from the body harness (B31).
3) Connect the connector (2M) in test harness
M to connector (AB1).
4) Measure the resistance between connector
(5M) in test harness M and the connector (2R)
in test harness R.
Connector & terminal
(5M) No. 2 — (2R) No. 1: Is the resistance less than 10
Ω?Go to step 3.Replace the airbag
main harness with
body harness.
3 CHECK AIRBAG MAIN HARNESS.
Measure the following resistance with the
above-mentioned condition maintained.
Connector & terminal
(5M) No. 2 — Chassis ground:
(2R) No. 1 — Chassis ground:Is the resistance more than 1
MΩ?Go to step 4.Replace the airbag
main harness with
body harness.
4 CHECK FUSE No. 11 (IN JOINT BOX).
1) Confirm that the ignition switch is turned
OFF.
2) Remove the fuse No. 11 (in fuse and relay
box) and perform visual inspection.Is the fuse No. 11 blown out? Replace the fuse
No. 11. If fuse No.
11 blows out
again, repair the
body harness. Repair the body
harness.

AB-61
AIRBAG SYSTEM (DIAGNOSTIC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
Step Check Yes No
1 CHECK AIRBAG CONTROL MODULE.
1) Turn the ignition switch to OFF, disconnect
the battery ground cable, and wait more than
20 seconds.
2) Disconnect the connector (AB3) from the
airbag control module. Control Module.>
3) Connect the connector (1R) in test harness
R to connector (AB3).
4) Connect the battery ground cable and turn
the ignition switch to ON.
5) Measure the voltage between connector
(2R) in test harness R and chassis ground.
Connector & terminal
(2R) No. 1 (+) — Chassis ground (
−): Is the voltage more than 10 V? Replace the airbag
control module.
Airbag Control
Module.>Go to step 2.
2 CHECK AIRBAG MAIN HARNESS.
1) Turn the ignition switch to OFF, disconnect
the battery ground cable, and wait more than
20 seconds.
2) Disconnect the airbag connector (AB1)
from the body harness (B31).
3) Connect the connector (2M) in test harness
M to connector (AB1).
4) Measure the resistance between connector
(5M) in test harness M and the connector (2R)
in test harness R.
Connector & terminal
(5M) No. 9 — (2R) No. 1: Is the resistance less than 10
Ω?Go to step 3.Replace the airbag
main harness with
body harness.
3 CHECK AIRBAG MAIN HARNESS.
Measure the following resistance with the
above-mentioned condition maintained.
Connector & terminal
(5M) No. 9 — Chassis ground:
(2R) No. 1 — Chassis ground: Is the resistance more than 1
MΩ? Go to step 4.Replace the airbag
main harness with
body harness.
4 CHECK FUSE No. 11 (IN FUSE AND RELAY
BOX).
1) Confirm that the ignition switch is turned
OFF.
2) Remove the fuse No. 11 (in fuse and relay
box) and perform visual inspection.Fuse No. 11 is not blown out. Replace the fuse
No. 11. If fuse No.
11 blows out
again, repair the
body harness. Repair the body
harness.

AB-63
AIRBAG SYSTEM (DIAGNOSTIC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
Step Check Yes No
1 CHECK AIRBAG CONTROL MODULE.
1) Turn the ignition switch to OFF, disconnect
the battery ground cable, and wait more than
20 seconds.
2) Disconnect the connector (AB3) from air-
bag control module. Control Module.>
3) Connect the connector (1R) in test harness
R to connector (AB3).
4) Connect the battery ground cable, and turn
the ignition switch to ON.
5) Measure the voltage between the connec-
tor (2R) in test harness R and the chassis
ground.
Connector & terminal
(2R) No. 6 (+) — Chassis ground (
−): Is the voltage more than 10 V? Replace the airbag
control module.
Airbag Control
Module.>Go to step 2.
2 CHECK AIRBAG MAIN HARNESS.
1) Turn the ignition switch to OFF, disconnect
the battery ground cable, and wait more than
20 seconds.
2) Disconnect the airbag connector (AB1)
from the body harness (B31).
3) Connect the connector (2M) in test harness
M to the airbag connector (AB1).
4) Measure the resistance between the con-
nector (5M) in test harness M and the connec-
tor (2R) in test harness R.
Connector & terminal
(5M) No. 4 — (2R) No. 6: Is the resistance less than 10
Ω?Go to step 3.Replace the airbag
main harness with
body harness.
3 CHECK AIRBAG MAIN HARNESS.
Measure the following resistance with the
above-mentioned condition maintained.
Connector & terminal
(5M) No. 4 — Chassis ground:
(2R) No. 6 — Chassis ground: Is the resistance more than 1
MΩ?Go to step 4.Replace the airbag
main harness with
body harness.
4 CHECK FUSE NO. 6 (IN FUSE AND RELAY
BOX).
1) Confirm that the ignition switch is turned
OFF.
2) Remove the No. 6 fuse (in fuse and relay
box) and perform visual inspection.Is the fuse No. 6 blown out? Replace the fuse
No. 6. If fuse No. 6
is blown out again,
repair the body
harness. Repair the body
harness.

AB-65
AIRBAG SYSTEM (DIAGNOSTIC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
Step Check Yes No
1 CHECK AIRBAG CONTROL MODULE.
1) Turn the ignition switch to OFF, disconnect
the battery ground cable, and wait more than
20 seconds.
2) Disconnect the connector (AB3) from air-
bag control module. Control Module.>
3) Connect the connector (1R) in test harness
R to connector (AB3).
4) Connect the battery ground cable, and turn
the ignition switch to ON.
5) Measure the voltage between the connec-
tor (2R) in test harness R and the chassis
ground.
Connector & terminal
(2R) No. 6 (+) — Chassis ground (
−): Is the voltage more than 10 V? Replace the airbag
control module.
Airbag Control
Module.>Go to step 2.
2 CHECK AIRBAG MAIN HARNESS.
1) Turn the ignition switch to OFF, disconnect
the battery ground cable, and wait more than
20 seconds.
2) Disconnect the airbag connector (AB1)
from the body harness (B31).
3) Connect the connector (2M) in test harness
M to the airbag connector (AB1).
4) Measure the resistance between the con-
nector (5M) in test harness M and the connec-
tor (2R) in test harness R.
Connector & terminal
(5M) No. 4 — (2R) No. 6: Is the resistance less than 10
Ω?Go to step 3.Replace the airbag
main harness with
body harness.
3 CHECK AIRBAG MAIN HARNESS.
Measure the following resistance with the
above-mentioned condition maintained.
Connector & terminal
(5M) No. 1 — Chassis ground:
(2R) No. 6 — Chassis ground: Is the resistance more than 1
MΩ? Go to step 4.Replace the airbag
main harness with
body harness.
4 CHECK FUSE NO. 6 (IN FUSE AND RELAY
BOX).
1) Confirm that the ignition switch is turned
OFF.
2) Remove the No. 6 fuse (in fuse and relay
box) and perform visual inspection.Is the fuse No. 6 blown out? Replace the fuse
No. 6. If fuse No. 6
is blown out again,
repair the body
harness. Repair the body
harness.

LI-3
LIGHTING SYSTEM
Headlight and Tail Light System
2. Headlight and Tail Light Sys-
tem
A: WIRING DIAGRAM
1. HEADLIGHT
System.>
2. CLEARANCE LIGHT AND ILLUMINA-
TION LIGHT
Light and Illumination Light System.>
B: INSPECTION
1. HEADLIGHT SWITCH
(Light).>
2. HEADLIGHT RELAY
Measure the headlight relay resistance between
terminals when connecting terminal No. 4 to battery
positive terminal and terminal No. 3 to battery
ground terminal.
3. TAIL AND ILLUMINATION RELAY
Measure the tail and illumination relay resistance
between terminals when connecting terminal No. 4
to battery positive terminal and terminal No. 3 to
battery ground terminal.
Current Terminal No. Standard
Flow
1 and 2Less than 1 Ω
No flow More than 1 MΩ
LI-00001
(1)
(2) (1)
(4)(2)
(3)
(3)(4)
Current Terminal No. Standard
Flow
1 and 2Less than 1 Ω
No flow More than 1 MΩ
LI-00001
(1)
(2) (1)
(4)(2)
(3)
(3)(4)

LI-4
LIGHTING SYSTEM
Front Fog Light System
3. Front Fog Light System
A: WIRING DIAGRAM
1. FRONT FOG LIGHT
Light System.>
B: INSPECTION
1. FRONT FOG LIGHT SWITCH
Measure the resistance between front fog light switch
terminals.
2. FRONT FOG LIGHT RELAY
Measure the front fog light relay resistance be-
tween terminals when connecting terminal No. 4 to
battery positive terminal and terminal No. 3 to bat-
tery ground terminal.
Switch position Terminal No. Standard
OFF
3 and 5More than 1 MΩ
ON Less than 1 Ω
Current Terminal No. Standard
Flow
1 and 2Less than 1 Ω
No flow More than 1 MΩ
LI-00051
LI-00001
(1)
(2) (1)
(4)(2)
(3)
(3)(4)

LI-5
LIGHTING SYSTEM
Rear Fog Light System
4. Rear Fog Light System
A: WIRING DIAGRAM
1. REAR FOG LIGHT
Light System.>
B: INSPECTION
1. REAR FOG LIGHT SWITCH
1) Turn the ignition switch to ON.
2) Turn on the headlight or front fog light.
3) Push the rear fog light switch and check if the
rear fog light turns on.
2. REAR FOG LIGHT RELAY
Measure the rear fog light relay resistance between
terminals when connecting terminal No. 4 to battery
positive terminal and terminal No. 3 to battery
ground terminal.
Current Terminal No. Standard
Flow
1 and 2Less than 1 Ω
No flow More than 1 MΩ
LI-00001
(1)
(2) (1)
(4)(2)
(3)
(3)(4)

WIPER AND WASHER SYSTEM
WW
Page
1. General Description ....................................................................................2
2. Wiper and Washer System .........................................................................6
3. Combination Switch (Wiper)........................................................................7
4. Wiper Blade.................................................................................................9
5. Washer Tank and Motor............................................................................11
6. Front Wiper Arm ........................................................................................12
7. Front Wiper Motor and Link.......................................................................13
8. Front Washer Nozzle ................................................................................15
9. Rear Wiper Arm ........................................................................................16
10. Rear Wiper Motor ......................................................................................17
11. Rear Washer .............................................................................................18
12. Wiper Control Relay ..................................................................................19
13. Headlight Washer......................................................................................20