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Home >> Subaru >> 2005 >> Forester XS, Automatic >> Repair and Diagnosis (Single Page) >> Body & Frame >> Door Locks >> Security And Locks >> Keyless Entry System >> Inspection >> Check Door Switch
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Check Door Switch

CHECKING DOOR SWITCH

Step Check Yes No
1 : CHECK DOOR SWITCH CIRCUIT. 
Measure the voltage between the keyless entry control unit harness connector terminal and chassis ground.
Connector & terminal 
Front and rear side door: 
(B176) No. 10 (+) - chassis ground (-): 
Rear gate: 
(B176) No. 9 (+) - chassis ground (-): 		 Is the voltage 0 V when any door or rear gate is opened? Go to step 2.  Go to step 3  .
2 : CHECK DOOR SWITCH CIRCUIT. 
Measure the voltage between the keyless entry control unit harness connector terminal and chassis ground.
Connector & terminal 
Front and rear side door: 
(B176) No. 10 (+) - chassis ground (-): 
Rear gate: 
(B176) No. 9 (+) - chassis ground (-): 		 Is the voltage more than 10 V when all doors and rear gate are closed? The door switch is OK. Go to step 3. 
3 : CHECK DOOR SWITCH. 
  1. Disconnect the door switch harness connector.
  2. Measure the resistance between the door switch terminals.

Terminals 
Door switch No. 1 - No. 3: 
Rear gate latch switch No. 1 - No. 2: 		 Is the resistance more than 1 Mohm when the door switch is depressed? Go to step 4.  Replace the door switch.
4 : CHECK DOOR SWITCH. 
Measure the resistance between the door switch terminals.
Terminals 
Door switch No. 1 - No. 3: 
Rear gate latch switch No. 1 - No. 2: 		 Is the resistance less than 1 ohm when the door switch is released? Check the harness for open circuits and shorts between the keyless entry control unit and door switch. Replace the door switch.
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