When The Driver's Switch Is Operated, The Rear Left Power Window Does Not Work In Remote Operation. (With Auto Function Equipped For All Seats)

Trouble causes: 

• Rear regulator and motor assembly LH malfunction
• Power window main switch failure
• Rear power window sub-switch LH malfunction
• LIN communication error
• Body integrated unit malfunction
• Harness malfunction
• Poor contact of connector
• Power supply circuit malfunction

1. CHECK MALFUNCTIONS  .
   1. Turn the ignition switch to ON.
   2. Operate the rear power window sub-switch LH and check that the power window (rear seat LH) works in automatic operation.

   Does the power window operate automatically according to switch operation?

   Yes:  Go to  2.

   No:  Perform the diagnosis for "When the rear left seat switch is operated, the rear left power window does not work in automatic operation". Ref. to POWER WINDOW (DIAGNOSTICS)>DIAGNOSTICS WITH PHENOMENON>INSPECTION>WHEN THE REAR LEFT SEAT SWITCH IS OPERATED, THE REAR LEFT POWER WINDOW DOES NOT WORK IN AUTOMATIC OPERATION .

2. CHECK DTC  .

   Using the Subaru Select Monitor, read the DTCs of [Power Window (Switch)] and [Power Window (Rear Left)]. Ref. to POWER WINDOW (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC) .

   • Power Window (Switch)
   • Power Window (Rear Left)

   Are any DTCs displayed?

   Yes:  Perform the diagnosis for the displayed DTCs. Ref. to POWER WINDOW (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC)>LIST .

   No:  Go to  3.

3. CHECK [Remote switch] (DATA MONITOR)  .

   Using the Subaru Select Monitor, check the following items in the [Data Monitor] of [Power Window (Rear Left)]. Ref. to POWER WINDOW (DIAGNOSTICS)>DATA MONITOR .

   • Remote switch

   Does the display change corresponding to the switch operation?

   Yes:  Replace the power window main switch. Ref. to GLASS/WINDOWS/MIRRORS>POWER WINDOW CONTROL SWITCH .

   No:  Replace the rear regulator and motor assembly LH. Ref. to GLASS/WINDOWS/MIRRORS>REAR REGULATOR AND MOTOR ASSEMBLY .