DTC B2B11: Passenger's Door Power Window Driver's Door Manual Up Switch Stuck

DTC detecting condition: 

When Remote P/W SW signal UP is received for 20±1 seconds or longer.

Trouble symptom: 

• When the power window main switch is operated, passenger's side window does not work.
• When the power window main switch is operated, passenger's side window rolls down only in manual down operation, or inches up. (Inch up: Operating the switch rolls up the window about 10 mm only)

Wiring diagram: 

Power window system Ref. to WIRING SYSTEM>Power Window System>WIRING DIAGRAM .

Courtesy of SUBARU OF AMERICA, INC.

1. CHECK DTC  .

   Read the DTC of [Power Window (Switch)] using the Subaru Select Monitor. Ref. to POWER WINDOW (DIAGNOSTICS)>Diagnostic Trouble Code (DTC) .

   • Power Window (Switch)

   Is DTC B2B50 displayed? (Current malfunction)

   Yes  : Perform the diagnosis of DTC B2B50. Ref. to POWER WINDOW (DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B2B50 POWER WINDOW MAIN SWITCH FAILURE .

   No  : Go to  2.

2. CHECK FRONT REGULATOR & MOTOR ASSEMBLY  .

   Using the Subaru Select Monitor, check the following items in the [Active Test] of [Power Window (Passenger)]. Ref. to POWER WINDOW (DIAGNOSTICS)>ACTIVE TEST .

   • Power Window Operation Test

   Does the window roll up and down?

   Yes  : Replace the power window main switch. Ref. to GLASS/WINDOWS/MIRRORS>POWER WINDOW CONTROL SWITCH . After the repair. Go to  3.

   No  : Replace the front regulator and motor assembly RH. Ref. to GLASS/WINDOWS/MIRRORS>FRONT REGULATOR AND MOTOR ASSEMBLY .

3. CHECK DTC  .

   Read the DTC of [Power Window (Passenger)] using the Subaru Select Monitor. Ref. to POWER WINDOW (DIAGNOSTICS)>Diagnostic Trouble Code (DTC .

   Is DTC B2B11 displayed? (Current malfunction)

   Yes  : Replace the front regulator and motor assembly RH. Ref. to GLASS/WINDOWS/MIRRORS>FRONT REGULATOR AND MOTOR ASSEMBLY .

   No  : Even if DTC is displayed, the circuit has returned to a normal condition at this time. Reproduce the failure, and then perform the diagnosis again.

   NOTE: In this case, temporary poor contact of connector, temporary open or short circuit of harness may be the cause.