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Check Door Switch

WARNING: This page is about a different car, the 2006 Subaru Outback and 2006 Subaru Legacy. However, it is still accessible from the selected car via links, so may be relevant.
DOOR SWITCH CHECKING PROCEDURE CHART

Step Check Yes No
1 CHECK INPUT FROM EACH DOOR SWITCH. 
  1. Connect the Subaru Select Monitor to the data link connector.
  2. Turn the ignition switch to ON.
  3. Select {Integ. unit} from main menu.
  4. Select the {Current Data Display & Save}.
  5. Check the door switch input to the body integrated unit when opening the each door (front RH and LH, rear RH and LH).
 Is the input signal detected when opening the each door (front RH and LH, rear RH and LH)? The door switch circuit is OK. When the input signal cannot be detected in some door switch, Go to step 2. 
2 CHECK DOOR SWITCH CIRCUIT. 
  1. Turn the ignition switch to OFF.
  2. Disconnect the harness connector of body integrated unit.
  3. Disconnect the harness connector of faulty door switch.
  4. Measure the resistance between harness connector terminals.

    Connector & terminal 

    (i84) No. 19 - (R12) No. 1: (front door LH) 

    (i84) No. 32 - (R9) No. 1: (front door RH) 

    (i84) No. 31 - (R22) No. 1: (rear door LH) 

    (i84) No. 18 - (R16) No. 1: (rear door RH) 

 Is the resistance less than 10 Ω? Go to step 3.  Repair the harness.
3 CHECK GROUND CIRCUIT OF DOOR SWITCH. 
  1. Disconnect the harness connector of faulty door switch.
  2. Measure the resistance of harness connector and chassis ground.

    Connector S terminal 

    (R9) No. 3 - Chassis ground: (front door LH) 

    (R12) No. 3 - Chassis ground: (front door RH) 

    (R22) No. 3 - Chassis ground: (rear door LH) 

    (R16) No. 3 - Chassis ground: (rear door RH) 

 is the resistance less than 10 Ω? Go to step 4.  Repair the harness.
4 CHECK DOOR SWITCH. 
  1. Disconnect the harness connector of faulty door switch.
  2. Measure the resistance between door switch terminals.

    Terminals 

    No. 1 - No. 3: 

 Is the resistance more than 1 MΩ when door switch is pushed? Go to step 5.  Replace the door switch.
5 CHECK DOOR SWITCH. 
Measure the resistance between door switch terminals.
Terminals 
No. 1 - No. 3: 		 Is the resistance less than 1 Ω when door switch is released? Check the body integrated unit. < Ref. to BASIC DIAGNOSTIC PROCEDURE . > Replace the door switch.
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