Power Window Control Switch: Inspection

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: Connecting Battery And Subaru Select Monitor To Switch

   Courtesy 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

   Courtesy of SUBARU OF AMERICA, INC.

   	Terminal No.	Inspection conditions	Standard
   Passenger's seat	14 - 8 1 - 2	UP	Less than 1 Ω
   	14 - 2 14 - 8	[OFF]	1 MΩ or more
   	1 - 8 1 - 2 8 - 2		Less than 1 Ω
   	14 - 2 1 - 8	DOWN	Less than 1 Ω
   Rear LH	14 - 15 1 - 16	UP	Less than 1 Ω
   	14 - 15 14 - 16	[OFF]	1 MΩ or more
   	1 - 15 1 - 16 15 - 16		Less than 1 Ω
   	14 - 16 1 - 15	DOWN	Less than 1 Ω
   Rear RH	14 - 7 1 - 6	UP	Less than 1 Ω
   	14 - 7 14 - 6	[OFF]	1 MΩ or more
   	1 - 6 1 - 7 6 - 7		Less than 1 Ω
   	14 - 6 1 - 7	DOWN	Less than 1 Ω

2. If the inspection result is not within the standard, replace the switch - power window main.

1. Remove the switch - power window sub.
2. Check the resistance between terminals of the switch - power window sub.

Fig 3: Identifying Power Window Sub Switch Terminals

Courtesy of SUBARU OF AMERICA, INC.