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Home >> Subaru >> 2015 >> XV Crosstrek Base >> Repair and Diagnosis >> Body & Frame >> Windows >> Glass/Window/Mirrors >> Power Window Control Switch >> Inspection >> Main Switch

Main Switch

CAUTION: Since the switch - power window main is controlled by CPU, do not check continuity for switch alone with the circuit tester. Performing continuity check with circuit tester can damage the switch - power window main circuit.

Check output from the switch - power window main to the driver's side motor using the oscilloscope function in the Subaru Select Monitor.

  1. Remove the switch - power window main.
  2. Connect the battery and the Subaru Select Monitor to the switch - power window main terminal.
    CAUTION: Never mix up the terminals when connecting the harness connector of the switch - power window main and the battery. If the connection is wrong, the switch - power window main may be damaged.
    NOTE:
    • When the battery is connected to the switch - power window main terminal, the letters "AUTO" on the driver's side knob illuminates.
    • For detailed procedures, refer to "Subaru Select Monitor Operation Manual".
    Fig 1: Checking Output From Switch Of Power Window Main To Driver's Side Motor Using Oscilloscope Function
    G08315140Courtesy of SUBARU OF AMERICA, INC.
  3. Operate the switch - power window main and check the output.
    NOTE: Since output time during window UP operation is extremely short, it cannot be checked without using a measuring instrument such as oscilloscope. Output is constantly produced while the switch is operated for window DOWN operation.
    Inspection conditions Output time Standard
    AUTO UP Approx. 130 ms Battery voltage
    UP
    OFF - 0 V
    DOWN During switch operation Battery voltage
    AUTO DOWN Approx. 300 ms
  4. If the inspection result is not within the standard, replace the switch - power window main.
  1. Check the resistance between terminals of the switch - power window main.
    Fig 2: Identifying Power Window Main Switch Terminals
    G08315141Courtesy of SUBARU OF AMERICA, INC.
      Terminal No. Inspection conditions Standard
    Passenger's seat 14 - 8
    19 - 12    		 UP Less than 1 Ω
    14 - 12
    14 - 8    		 OFF 1 MΩ or more
    19 - 8
    19 - 12
    8 - 12    		 Less than 1 Ω
    14 - 12
    19 - 8    		 DOWN Less than 1 Ω
    Rear LH 14 - 7
    19 - 5    		 UP Less than 1 Ω
    14 - 7
    14 - 5    		 OFF 1 MΩ or more
    19 - 7
    19 - 5
    7 - 5    		 Less than 1 Ω
    14 - 5
    19 - 7    		 DOWN Less than 1 Ω
    Rear RH 14 - 1
    19 - 3    		 UP Less than 1 Ω
    14 - 1
    14 - 3    		 OFF 1 MΩ or more
    19 - 3
    19 - 1
    3 - 1    		 Less than 1 Ω
    14 - 3
    19 - 1    		 DOWN Less than 1 Ω
  2. If the inspection result is not within the standard, replace the switch - power window main.
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