Check Door Lock Switch

Using the Subaru Select Monitor, display the data of «Manual lock SW input».

Does the display change to OFF ↔ ON, when the door lock switch is moved to LOCK?

Yes:  Go to  2

No:  Go to  3

From the condition in step  1), operate the door lock switch (driver's and passenger's) in the UNLOCK direction.

Does the display switch between OFF ↔ ON?

Yes:  The door lock switch is OK.

No:  Go to  4

1. Disconnect the power window main switch connector.
2. Measure the resistance between terminals when moving the power window switch (door lock switch) to LOCK direction.

   Terminals 

   Driver's side

   No. 3 - No. 1:

   Passenger's side

   No. 4 - No. 5:

Does the resistance change from 1 MΩ or more to less than 10 Ω?

Yes:  Go to  4

No:  Replace the power window main switch. Ref. to GLASS/WINDOWS/MIRRORS>POWER WINDOW CONTROL SWITCH .

Measure the resistance between terminals when moving the power window switch (door lock switch) to UNLOCK direction.

Terminals 

Driver's side

No. 9 - No. 1:

Passenger's side

No. 2 - No. 5:

Does the resistance change from 1 MΩ or more to less than 10 Ω?

Yes:  Go to  5

No:  Replace the power window main switch. Ref. to GLASS/WINDOWS/MIRRORS>POWER WINDOW CONTROL SWITCH .

Measure the resistance between the power window main switch connector and chassis ground.

Connector & terminal 

Driver's side

(D7) No. 3 - Chassis ground:

Passenger's side

(D125) No. 4 - Chassis ground:

Is the resistance less than 10 Ω?

Yes:  Go to  6

No:  Repair or replace the harness.

1. Disconnect the connector of body integrated unit.
2. Check the harness between body integrated unit and power window main switch.

   Connector & terminal 

   Driver's side

   (D7) No. 3 - (i171) No. 32:

   (D7) No. 9 - (i171) No. 12:

   Passenger's side

   (D125) No. 4 - (i171) No. 32:

   (D125) No. 2 - (i171) No. 12:

Is harness normal?

Yes:  Replace the body integrated unit. Ref. to SECURITY AND LOCKS>BODY INTEGRATED UNIT .

No:  Repair or replace the harness.