DTC B2B06: Driver's Door Power Window Pulse Direction

DTC detecting condition:

In UP/DOWN operation, when one hour of initial masking has elapsed since the motor is started, six edges of continuous pulse that are opposite to the window's moving direction are detected.

Trouble symptom:

When the power window main switch is operated, driver'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)

CAUTION:

Before performing diagnosis, refer to "CAUTION" in "General Description". Ref. to POWER WINDOW (DIAGNOSTICS) >GENERAL DESCRIPTION>CAUTION

SYSTEM INITIALIZATION .
1. Turn the ignition switch to ON.
2. Using the Subaru Select Monitor, perform [System Initialization] of [Power Window (Driver)]. Ref. to POWER WINDOW (DIAGNOSTICS) >WORK SUPPORT>OPERATION>SYSTEM INITIALIZATION
  NOTE:
  Record the DTCs and FFD because they will be erased when the initialization is performed.
3. Perform the initial setting of the power window. Ref. to GLASS/WINDOWS/MIRRORS>POWER WINDOW SYSTEM>OPERATION
4. Operate the power window main switch and check that the power window (driver's side) operates.
Does the power window operate normally according to switch operation?

Yes : 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.

No : Go to 2.
CHECK DTC .
Read the DTC of [Power Window (Driver)] using the Subaru Select Monitor. Ref. to POWER WINDOW (DIAGNOSTICS) >DIAGNOSTIC TROUBLE CODE (DTC)

Is DTC B2B06 displayed? (Current malfunction)

Yes : Replace the front regulator & motor assembly (driver's side). 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.