Toyota 4Runner: Power Window Motor Malfunction (B2311)

Toyota 4Runner Service Manual / Vehicle Exterior / Window / Glass / Power Window Control System / Power Window Motor Malfunction (B2311)

DESCRIPTION

The power window regulator motor is operated by the multiplex network master switch or power window regulator switch. The power window regulator motor assembly has motor and ECU functions.

This DTC is stored when the power window regulator motor has a malfunction, or the ECU built into the regulator motor determines that the fully closed window position has deviated approximately 20 mm (0.787 in.) or more from the normal position.

HINT:

DTC B2311 can be stored in each power window regulator motor (power window ECU).

D-Door Motor

DTC Code	DTC Detection Condition	Trouble Area
B2311	Either condition is met: Power window regulator motor assembly malfunctions. ECU in the power window regulator motor determines that the fully closed window position has deviated approx. 20 mm (0.787 in.) or more from the normal position.	Front power window regulator motor LH

P-Door Motor

DTC Code	DTC Detection Condition	Trouble Area
B2311	Either condition is met: Power window regulator motor malfunctions. ECU in the power window regulator motor determines that the fully closed window position has deviated approx. 20 mm (0.787 in.) or more from the normal position.	Front power window regulator motor RH

RL-Door Motor

DTC Code	DTC Detection Condition	Trouble Area
B2311	Either condition is met: Power window regulator motor malfunctions. ECU in the power window regulator motor determines that the fully closed window position has deviated approx. 20 mm (0.787 in.) or more from the normal position.	Rear power window regulator motor LH

RR-Door Motor

DTC Code	DTC Detection Condition	Trouble Area
B2311	Either condition is met: Power window regulator motor malfunctions. ECU in the power window regulator motor determines that the fully closed window position has deviated approx. 20 mm (0.787 in.) or more from the normal position.	Rear power window regulator motor RH

CAUTION / NOTICE / HINT

NOTICE:

When a power window regulator motor is reinstalled or replaced, the power window control system must be initialized.
After any door glass or a door glass run has been replaced, the jam protection function may operate unexpectedly when the auto up function is used. In such cases, the auto up function can be reinitialized by repeating the following operations at least 5 times:
1. Close the power window by fully pulling up the multiplex network master switch or power window regulator switch and holding it in the auto up position.
2. Open the power window by fully pushing down the switch.

PROCEDURE

1.	PERFORM ACTIVE TEST USING TECHSTREAM (POWER WINDOW)

(a) Select the Active Test, use the Techstream to generate a control command, and then check that each door window regulator operates (See page ).

CAUTION:

Be careful to avoid injuries as this test causes vehicle parts to move. During the Active Test, the jam protection function does not operate.

D-Door Motor

Tester Display	Test Part	Control Range	Diagnostic Note
Power Window	Driver side power window	OFF/UP/DOWN	-

P-Door Motor

Tester Display	Test Part	Control Range	Diagnostic Note
Power Window	Passenger side power window	OFF/UP/DOWN	-

RL-Door Motor

Tester Display	Test Part	Control Range	Diagnostic Note
Power Window	Rear LH side power window	OFF/UP/DOWN	-

RR-Door Motor

Tester Display	Test Part	Control Range	Diagnostic Note
Power Window	Rear RH side power window	OFF/UP/DOWN	-

OK:

Each power window regulator motor operates.

Result

Result	Proceed to
OK	A
NG (Front power window LH)	B
NG (Front power window RH)	C
NG (Rear power window LH)	D
NG (Rear power window RH)	E

REPLACE FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY LH

REPLACE FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY RH

REPLACE REAR POWER WINDOW REGULATOR MOTOR ASSEMBLY LH

REPLACE REAR POWER WINDOW REGULATOR MOTOR ASSEMBLY RH

2.	PERFORM INITIALIZATION

(a) Initialize the power window regulator motor assembly (See page ).

(b) Check that each power window operates normally by opening and closing the window (See page ).

HINT:

Each power window operates normally.

3.	CHECK WHETHER PARTS HAVE BEEN INSTALLED CORRECTLY

(a) Check that the power window components are installed correctly.

OK:

Power window components are installed correctly.

HINT:

If the power window components are installed correctly, the problem has been caused by battery disconnection while the ignition switch was ON, or the motor being overheated.

END

INSTALL PARTS CORRECTLY

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