Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Subaru Forester 1999-2004 Approved Subaru Forester 2004 5 - Body Security and Locks Keyless Entry System
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KEYLESS ENTRY SYSTEM
SECURITY AND LOCKS
3. Keyless Entry System
A: WIRING DIAGRAM
1. KEYLESS ENTRY
B: ELECTRICAL SPECIFICATION
1. KEYLESS ENTRY CONTROL MODULE
10 9 8 7 6 5 4 3 2 1
18 17 16 15 14 13 12 11
SL-00036
Content Terminal No. Measuring condition
Battery voltage is present when the transmitter LOCK/ARM button is
Body integrated module 1 (OUTPUT)
pressed.
Battery voltage is present when the transmitter UNLOCK/DISARM but-
Body integrated module 2 (OUTPUT)
ton is pressed.
Security control module 3 --
Security control module 4 --
Door lock switch 5 (INPUT) 0 V is present when the door lock switch is turned to LOCK.
Ignition switch (ON) 6 (INPUT) Battery voltage is present when ignition switch is turned to ON.
Battery voltage is present when the key is inserted into the ignition
Key warning switch 7 (INPUT)
switch.
Door lock switch 8 (INPUT) 0 V is present when the door lock switch is turned to UNLOCK.
Rear gate latch switch 9 (INPUT) 0 V is present when rear gate is open.
Door switch 10 (INPUT) 0 V is present when any door is open.
Ground 11 0 V is constantly present.
Battery voltage is present when the transmitter UNLOCK/DISARM or
Turn signal light (Left) 12 (OUTPUT)
LOCK/ARM button is pressed.
0 V is present when the transmitter LOCK/ARM button is pressed three
Horn relay 13 (OUTPUT)
times within 5 seconds.
Power supply (Back-up) 14 Battery voltage is constantly present.
Power supply (Back-up) 15 Battery voltage is constantly present.
0 V is present when the transmitter UNLOCK/DISARM or LOCK/ARM
Keyless buzzer 16 (OUTPUT)
button is pressed.
Security control module 17 --
Battery voltage is present when the transmitter UNLOCK/DISARM or
Turn signal light (Right) 18 (OUTPUT)
LOCK/ARM button is pressed.
SL-11
KEYLESS ENTRY SYSTEM
SECURITY AND LOCKS
2. BODY INTEGRATED MODULE
8 7 6 5 4 3 2 1 10 9 8 7 6 5 4 3 2 1
16 15 14 13 12 11 10 9 20 19 18 17 16 15 14 13 12 11
SL-00006
Content Terminal No. Measuring condition
Door switch (Except driver's door) B7 (INPUT) 0 V is present when any door is open (Except driver's door).
Door switch (Driver's door) B8 (INPUT) 0 V is present when driver's door is open.
Door lock switch B11 (INPUT) 0 V is present when the door lock switch is turned to UNLOCK.
Door lock switch B12 (INPUT) 0 V is present when the door lock switch is turned to LOCK.
Battery voltage is present when the transmitter LOCK/ARM button is
Keyless entry control module B13 (INPUT)
pressed.
Battery voltage is present when the transmitter UNLOCK/DISARM but-
Keyless entry control module B14 (INPUT)
ton is pressed.
Ignition switch (ON) B19 (INPUT) Battery voltage is present when ignition switch is turned to ON.
Key warning switch B20 (INPUT) Battery voltage is present when the key is inserted into ignition switch.
Power supply A1 Battery voltage is constantly present.
Power supply A2 Battery voltage is constantly present.
Ground A4 0 V is constantly present.
0 V is present when the transmitter UNLOCK/DISARM button is
Room light A5 (OUTPUT)
pressed.
Battery voltage is present when the transmitter LOCK/ARM button is
Door and rear gate lock actuator A6 (OUTPUT)
pressed.
Door and rear gate lock actuator Battery voltage is present when the transmitter UNLOCK/DISARM but-
A7 (OUTPUT)
(Except driver side) ton is pressed two times.
Battery voltage is present when the transmitter UNLOCK/DISARM but-
Door lock actuator (Driver side) A8 (OUTPUT)
ton is pressed one time.
Ground A13 0 V is constantly present.
SL-12
KEYLESS ENTRY SYSTEM
SECURITY AND LOCKS
C: INSPECTION
1. SYMPTOM CHART
Symptom Repair order Reference
None of the functions of the key- 1. Check the transmitter battery and function.
2. Check the fuse.
3. Check the keyless entry control module power supply
4. Replace the keyless entry control module.
The transmitter cannot be pro- 1. Check the transmitter battery and function.
2. Check the ignition switch circuit.
3. Check the door switch.
4. Replace the keyless entry control module.
The door lock or unlock does not 1. Check the transmitter battery and function.
does not operate when the door 2. Check the key warning switch.
INSPECTION, Door Lock Control
3. Check the door switch.
SWITCH, INSPECTION, Keyless
Entry System.>
4. Check the output signal to body integrated module.
5. Replace the keyless entry control module.
The panic alarm does not oper- 1. Check the transmitter battery and function.
2. Check the horn operation.
3. Replace the keyless entry control module.
SL-13
KEYLESS ENTRY SYSTEM
SECURITY AND LOCKS
Symptom Repair order Reference
The buzzer chirp and hazard light 1. Check the buzzer chirp function.
2. Check the buzzer and hazard light opera-
3. Replace the keyless entry control module.
The room light operation do not 1. Check the room light operation.
2. Replace the keyless entry control module.
The door warning does not oper- 1. Check the door switch.
2. Check the buzzer operation.
3. Replace the keyless entry control module.
2. CHECK TRANSMITTER BATTERY AND FUNCTION
Step Check Yes No
1 CHECK TRANSMITTER BATTERY. Is the voltage more than 2 V? Go to step 2. Replace the trans-
1) Remove the battery from the transmitter. mitter battery.
2) Check the battery voltage.
2 CHECK LED OF TRANSMITTER. Does the LED blink one time? Go to step 3. Replace the trans-
1) Press the LOCK/ARM or UNLOCK/DIS- mitter.
3 CHECK LED OF TRANSMITTER. Does the LED blink one time, Go to step 4. Replace the trans-
Keep the LOCK/ARM button pressed. and then turn on? mitter.
4 CHECK LED OF TRANSMITTER. Does the LED blink one time? Go to step 5. Replace the trans-
Press the UNLOCK/DISARM button. mitter.
5 CHECK LED OF TRANSMITTER. Does the LED blink two times? Transmitter is OK. Replace the trans-
Keep the UNLOCK/DISARM button pressed. mitter.
SL-14
KEYLESS ENTRY SYSTEM
SECURITY AND LOCKS
3. CHECK BUZZER CHIRP SETTING
Step Check Yes No
1 CHECK BUZZER CHIRP SETTING. Does the buzzer signal chirp? Buzzer chirp func- Go to step 2.
1) Check the current setting of the buzzer tion is OK.
chirp.
2) Remove the key from the ignition switch.
3) Close all doors and the rear gate.
4) Press the LOCK/ARM or UNLOCK/DIS-
ARM button.
2 CHECK BUZZER CHIRP SETTING. Does the buzzer signal chirp? Buzzer chirp func- Check the trans-
1) Press the UNLOCK/DISARM button once. tion is OK. mitter function.
2) Press both the LOCK/ARM and UNLOCK/
4. CHECK FUSE
Step Check Yes No
1 CHECK FUSE. Is the fuse blown out? Check the power Replace the fuse
Remove and visually check the fuse No. 6 (in supply and ground with a new one.
the main fuse box) and No. 3 (in the fuse and circuit.
5. CHECK POWER SUPPLY AND GROUND CIRCUIT
Step Check Yes No
1 CHECK POWER SUPPLY. Is the voltage more than 10 V? Go to step 2. Check the harness
1) Disconnect the keyless entry control mod- for open circuits
ule harness connector. and shorts
2) Measure the voltage between the harness between the key-
connector terminal and chassis ground. less entry control
Connector & terminal module and fuse.
(B176) No. 14, No. 15 (+) -- Chassis
ground (-):
2 CHECK GROUND CIRCUIT. Is the resistance less than 10 ? The power supply Repair the har-
Measure the resistance between the harness and ground circuit ness.
connector terminal and chassis ground. are OK.
Connector & terminal
(B176) No. 11 -- Chassis ground:
SL-15
KEYLESS ENTRY SYSTEM
SECURITY AND LOCKS
6. CHECK IGNITION SWITCH CIRCUIT
Step Check Yes No
1 CHECK IGNITION SWITCH SIGNAL. Is the voltage more than10 V? Ignition switch cir- Check the harness
1) Disconnect the keyless entry control mod- cuit is OK. for open circuits
ule harness connector. and shorts
2) Turn the ignition switch to ON. between the key-
3) Measure the voltage between harness con- less entry control
nector terminal and chassis ground. module and igni-
Connector & terminal tion relay.
(B176) No. 6 (+) -- chassis ground (-):
7. CHECK DOOR SWITCH
Step Check Yes No
1 CHECK DOOR SWITCH CIRCUIT. Is the voltage 0 V when any Go to step 2. Go to step 3.
Measure the voltage between the keyless door or rear gate is opened?
entry control module harness connector termi-
nal and chassis ground.
Connector & terminal
Front and rear side door:
(B176) No. 10 (+) -- chassis ground (-):
Rear gate:
(B176) No. 9 (+) -- chassis ground (-):
2 CHECK DOOR SWITCH CIRCUIT. Is the voltage more than 10 V The door switch is Go to step 3.
Measure the voltage between the keyless when all doors and rear gate OK.
entry control module harness connector termi- are closed?
nal and chassis ground.
Connector & terminal
Front and rear side door:
(B176) No. 10 (+) -- chassis ground (-):
Rear gate:
(B176) No. 9 (+) -- chassis ground (-):
3 CHECK DOOR SWITCH. Is the resistance more than 1 Go to step 4. Replace the door
1) Disconnect the door switch harness con- M when the door switch is switch.
nector. depressed?
2) Measure the resistance between the door
switch terminals.
Terminals
Door switch No. 1 -- No. 3:
Rear gate latch switch No. 1 -- No. 2:
4 CHECK DOOR SWITCH. Is the resistance less than 1 Check the harness Replace the door
Measure the resistance between the door when the door switch is for open circuits switch.
switch terminals. released? and shorts
Terminals between the key-
Door switch No. 1 -- No. 3: less entry control
Rear gate latch switch No. 1 -- No. 2: module and door
switch.
8. CHECK KEY WARNING SWITCH
Step Check Yes No
1 CHECK FUSE. Is the fuse blown out? Replace the fuse Go to step 2.
Remove and visually check the fuse No. 6 (in with a new one.
the main fuse box).
SL-16
KEYLESS ENTRY SYSTEM
SECURITY AND LOCKS
Step Check Yes No
2 CHECK KEY WARNING SWITCH CIRCUIT. Is the voltage more than 10 V? Go to step 3. Go to step 4.
1) Disconnect the keyless entry control mod-
ule harness connector.
2) Insert the key into the ignition switch.
(LOCK position)
3) Measure the voltage between the harness
connector terminal and chassis ground.
Connector & terminal
(B176) No. 7 (+) -- Chassis ground (-):
3 CHECK KEY WARNING SWITCH CIRCUIT. Is the voltage 0 V? Key warning Go to step 4.
1) Remove the key from the ignition switch. switch is OK.
2) Measure the voltage between the harness
connector terminal and chassis ground.
Connector & terminal
(B176) No. 7 (+) -- Chassis ground (-):
4 CHECK KEY WARNING SWITCH. Is the resistance less than 1 ? Go to step 5. Replace the key
1) Disconnect the key warning switch harness warning switch.
connector.
2) Insert the key into the ignition switch.
(LOCK position)
3) Measure the resistance between the key
warning switch terminals.
Terminals
No. 1 -- No. 2:
5 CHECK KEY WARNING SWITCH. Is the resistance more than 1 Check the follow- Replace the key
1) Remove the key from the ignition switch. M? ing: warning switch.
2) Measure the resistance between the key ◦ Jabse Service Manual Search 2024 ◦ Jabse Pravopis ◦ onTap.bg ◦ Other service manual resources online : Fixya ◦ eServiceinfo