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Check Door Lock Switch

  1. CHECK DATA MONITOR  .
    1. Turn the ignition switch to ON.
    2. Display the [Manual lock SW input] data using Subaru Select Monitor. Ref. to BODY CONTROL (DIAGNOSTICS)>DATA MONITOR .
    3. Turn the ignition switch to ON.

    Does the display change as [OFF] ←→> [ON] when each door lock switch is moved to LOCK?

    YES:  Go to  2.

    NO:  Go to  3.

  2. CHECK DOOR LOCK SWITCH  .

    From the condition in step 1), operate each 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.

  3. CHECK POWER WINDOW MAIN SWITCH (DOOR LOCK SWITCH)  .
    1. Disconnect the power window main switch (door lock switch) connector.
    2. Check the continuity between terminals when moving the power window main switch (door lock switch) in LOCK direction.

    Connector & terminal 

    Driver's side

    (D149) No. 9 - (D149) No. 1:

    Passenger's side

    (D125) No. 7 - (D125) No. 3:

    Did the indicator change from "No continuity" (1 MΩ or more) to "Continuity exists" (less than 10 Ω)?

    YES:  Go to  4.

    NO:  Replace the power window main switch.

  4. CHECK POWER WINDOW MAIN SWITCH (DOOR LOCK SWITCH)  .

    Check the continuity between terminals when moving the power window main switch (door lock switch) in UNLOCK direction.

    Connector & terminal 

    Driver's side

    (D149) No. 8 - (D149) No. 1:

    Passenger's side

    (D125) No. 2 - (D125) No. 3:

    Did the indicator change from "No continuity" (1 MΩ or more) to "Continuity exists" (less than 10 Ω)?

    YES:  Go to  5.

    NO:  Replace the power window main switch.

  5. CHECK HARNESS  .

    Measure the resistance between the power window main switch (door lock switch) connector and chassis ground.

    Connector & terminal 

    Driver's side

    (D149) No. 1 - Chassis ground:

    Passenger's side

    (D125) No. 3 - Chassis ground:

    Is the resistance less than 10 Ω?

    YES:  Go to  6.

    NO:  No Repair or replace the harness.

  6. CHECK HARNESS  .

    Check the harness between body integrated unit and power window main switch (door lock switch).

    Connector & terminal 

    Driver's side

    (D149) No. 9 - (i171) No. 32:

    (D149) No. 8 - (i171) No. 12:

    Passenger's side

    (D125) No. 7 - (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.

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