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HOMESERVICE MANUALSSUBARU2005OUTBACK I, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)BODY & FRAMEDOOR LOCKSSECURITY AND LOCKSDOOR LOCK CONTROL SYSTEMINSPECTIONCHECK DOOR LOCK SWITCH
2005 Subaru Outback i, Standard

Check Door Lock Switch

2005 Subaru Outback i, StandardSECTION Check Door Lock Switch
STEP CHECK SHEET

Step Check Yes No
1. CHECK DOOR LOCK SWITCH. 

Check the input from door lock switch to body integrated unit using Subaru Select Monitor.

  1. Connect the Subaru Select Monitor to data link connector.
  2. Turn the ignition switch to ON.
  3. Select {body integrated unit} from main menu.
  4. Select {Current Data Display & Save}.
  5. Check the input to body integrated unit by operating the door lock switch.
 Is the normal input signal displayed when the door lock switch is moved to LOCK/ UNLOCK? The door lock switch is OK. Go to step 2. 
2. CHECK DOOR LOCK SWITCH CIRCUIT. 
  1. Disconnect the body integrated unit harness connector.
  2. Measure the resistance between the harness connector terminal and chassis ground when moving the door lock switch to LOCK.

Connector & terminal 

(184) No. 15 - Chassis ground: 

 Is the resistance less than 10 Ω? Go to step 3.  Go to step 4. 
3. CHECK DOOR LOCK SWITCH CIRCUIT. 

Measure the resistance between the harness connector terminal and chassis ground when the door lock switch is moved to UNLOCK.

Connector & terminal 

(i84) No. 29 - Chassis ground: 

 Is the resistance less than 10 Ω? The door lock switch is OK. Go to step 4. 
4. CHECK DOOR LOCK SWITCH. 
  1. Disconnect the door lock switch harness 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. 4 - No. 7: 

Passenger's side: 

(D125) No. 4 - No. 3: 

 Is the resistance less than 1 Ω? Go to step 5.  Replace the door lock switch.
5. CHECK DOOR LOCK SWITCH. 

Measure the resistance between the door lock switch terminals when moving the door lock switch to UNLOCK.

Connector & terminal 

Driver's side: 

(D7) No. 5 - No. 7: 

Passenger's side: 

(D125) No. 1 - No. 3: 

 Is the resistance less than 1 Ω? Check the harness for open circuits or shorts between the body integrated unit and the door lock switch. Replace the door lock switch.
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.