Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Subaru Forester 1999-2004 Approved Subaru Forester 2004 5 - Body Security and Locks Door Lock Control System
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>> Download Door Lock Control System documenatation <<Text preview - extract from the document DOOR LOCK CONTROL SYSTEM
SECURITY AND LOCKS
2. Door Lock Control System
A: WIRING DIAGRAM
1. DOOR LOCK CONTROL
B: INSPECTION
1. SYMPTOM CHART
Symptom Repair order Reference
The door lock control system does 1. Check the fuse.
2. Check the power supply and ground circuit for
3. Check the door lock switch and the circuit.
4. Check the door lock actuator and the circuit.
The door lock switch does not oper- Check the door lock switch and the circuit.
A specific door lock actuator does not Check the door lock actuator and the circuit.
2. CHECK FUSE
Step Check Yes No
1 CHECK FUSE. Is the fuse blown out? Replace the fuse Check the power
Remove and visually check the fuse No. 2 (in with a new one. supply and ground
the main fuse box) and the fuse No. 3 (in the circuit.
SL-8
DOOR LOCK CONTROL SYSTEM
SECURITY AND LOCKS
3. 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 body integrated module for open circuits or
harness connector. shorts between
2) Measure the voltage between the harness the body inte-
connector terminal and chassis ground. grated module and
Connector & terminal the fuse.
(B280) No. 1, 2 (+) -- 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. is OK.
Connector & terminal
(B280) No. 4, 13 -- Chassis ground:
4. CHECK DOOR LOCK SWITCH AND CIRCUIT
Step Check Yes No
1 CHECK DOOR LOCK SWITCH CIRCUIT. Is the resistance less than 10 ? Go to step 2. Go to step 3.
1) Disconnect the body integrated module
harness connector.
2) Measure the resistance between the har-
ness connector terminal and chassis ground
when moving the door lock switch to LOCK.
Connector & terminal
(B281) No. 12 -- Chassis ground:
2 CHECK DOOR LOCK SWITCH CIRCUIT. Is the resistance less than 10 ? The door lock Go to step 3.
Measure the resistance between the harness switch is OK.
connector terminal and chassis ground when
moving the door lock switch to UNLOCK.
Connector & terminal
(B281) No. 11 -- Chassis ground:
3 CHECK DOOR LOCK SWITCH. Is the resistance less than 1 ? Go to step 4. Replace the door
1) Disconnect the door lock switch harness lock switch.
connector.
2) Measure the resistance between the door
lock switch terminals when moving the door
lock switch to LOCK.
Connector & terminal
Driver's side:
(D7) No. 5 -- No. 9:
Passenger's side:
(D62) No. 4 -- No. 5:
4 CHECK DOOR LOCK SWITCH. Is the resistance less than 1 ? Check the harness Replace the door
Measure the resistance between the door lock for open circuits or lock switch.
switch terminals when moving the door lock shorts between
switch to UNLOCK. the body inte-
Connector & terminal grated module and
Driver's side: the door lock
(D7) No. 5 -- No. 8: switch.
Passenger's side:
(D62) No. 2 -- No. 5:
SL-9
DOOR LOCK CONTROL SYSTEM
SECURITY AND LOCKS
5. CHECK DOOR LOCK ACTUATOR AND CIRCUIT
Step Check Yes No
1 CHECK OUTPUT SIGNAL. Is the voltage more than 10 V? Go to step 2. Replace the body
Measure the voltage between the body inte- integrated module.
grated module harness connector terminal and
chassis ground when moving the door lock
switch to LOCK.
Connector & terminal
(B280) No. 6 (+) -- Chassis ground (-):
2 CHECK OUTPUT SIGNAL. Is the voltage more than 10 V? Go to step 3. Replace the body
Measure the voltage between the body inte- integrated module.
grated module harness connector terminal and
chassis ground when moving the door lock
switch to UNLOCK.
Connector & terminal
(B280) No. 7, No. 8 (+) -- Chassis ground
(-):
3 CHECK DOOR LOCK ACTUATOR. Is the door lock actuator OK? Check the harness Replace the door
Check the door lock actuator. for open circuits or lock actuator.
Front door lock actuator: the body inte-
Rear door lock actuator: the door lock actu-
Rear gate latch lock actuator:
SL-10
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