Toyota Tacoma 2015-2018 Service Manual: Power Window Motor Malfunction (B2311)

DESCRIPTION

The power window regulator motor assemblies are operated by the power window regulator master switch assembly, front power window regulator switch assembly RH. The power window regulator motor assemblies have motor, regulator and ECU functions.

This DTC is output when the power window regulator motor assembly has a malfunction, or the ECU built into the regulator motor assembly 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 assembly (power window ECU).

D-Door Motor (Front Power Window Regulator Motor Assembly LH)

DTC No.	DTC Detection Condition	Trouble Area
B2311	Either condition is met: Power window regulator motor assembly malfunctions When ECU in power window regulator motor assembly determines that fully closed window position has deviated approx. 20 mm (0.787 in.) or more from normal position	Battery disconnected when ignition switch ON Front power window regulator motor assembly LH Incorrect installation of power window components Overheated front power window regulator motor assembly LH Harness or connector

P-Door Motor (Front Power Window Regulator Motor Assembly RH)

DTC No.	DTC Detection Condition	Trouble Area
B2311	Either condition is met: Power window regulator motor assembly malfunctions When ECU in power window regulator motor assembly determines that fully closed window position has deviated approx. 20 mm (0.787 in.) or more from normal position	Battery disconnected when ignition switch ON Front power window regulator motor assembly RH Incorrect installation of power window components Overheated front power window regulator motor assembly RH Harness or connector

CAUTION / NOTICE / HINT

PROCEDURE

1.	CHECK FOR DTC

(a) Clear the DTCs (See page ).

(b) Check for DTCs (See page ).

OK:

DTC B2311 is not output.

OK

USE SIMULATION METHOD TO CHECK

NG

2.	CHECK DTC OUTPUT

(a) Check the parts which the DTCs have been output from.

Result

Result	Proceed to
DTC output from power window regulator motor assembly (for driver door)	A
DTC output from power window regulator motor assembly (for front passenger door)	B

B

GO TO STEP 4

A

3.	CHECK HARNESS AND CONNECTOR (FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY LH - BATTERY AND BODY GROUND)

(a) Measure the resistance according to the value(s) in the table below. Standard Resistance: Tester Connection Condition Specified Condition P24-1 (GND) - Body ground Always Below 1 Ω

(b) Measure the voltage according to the value(s) in the table below.

Standard Voltage:

Tester Connection	Condition	Specified Condition
P24-2 (B) - P24-1 (GND)	Always	11 to 14 V

Result

Result	Proceed to
NG	A
OK	B

A

REPAIR OR REPLACE HARNESS OR CONNECTOR

B

GO TO STEP 5

4.	CHECK HARNESS AND CONNECTOR (FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY LH - BATTERY AND BODY GROUND)

(a) Measure the resistance according to the value(s) in the table below. Standard Resistance: Tester Connection Condition Specified Condition P22-1 (GND) - Body ground Always Below 1 Ω

(b) Measure the voltage according to the value(s) in the table below.

Standard Voltage:

Tester Connection	Condition	Specified Condition
P22-2 (B) - P22-1 (GND)	Always	11 to 14 V

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

5.	PERFORM ACTIVE TEST USING TECHSTREAM (APPLICABLE LOCATION)

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(c) Turn the Techstream on.

(d) Enter the following menus: Body Electrical / (desired system) / Active Test.

HINT:

Perform the Active Test for the power window regulator motor assembly that has DTC B2311 stored in its ECU

(e) Perform the Active Test according to the display on the Techstream.

CAUTION:

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

D-Door Motor (Front Power Window Regulator Motor Assembly LH)

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

P-Door Motor (Front Power Window Regulator Motor Assembly RH)

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

OK:

Each power window motor operates.

Result

Result	Proceed to
OK	A
NG (Driver side power window)	B
NG (Front passenger side power window)	C

B

REPLACE FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY LH

C

REPLACE FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY RH

A

6.	PERFORM INITIALIZATION (APPLICABLE LOCATION)

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

HINT:

Check the power window operation of the window where DTC B2311 has been stored.

NEXT

7.	CHECK POWER WINDOW CONTROL SYSTEM (APPLICABLE LOCATION)

(a) Check that the power window operates normally by opening and closing the window.

HINT:

Check the power window operation of the window where DTC B2311 has been stored.

OK:

Each power window operates normally.

Result

Result	Proceed to
OK	A
NG (Driver side power window)	B
NG (Front passenger side power window)	C

B

REPLACE FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY LH

C

REPLACE FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY RH

A

8.	CHECK WHETHER PARTS HAVE BEEN INSTALLED CORRECTLY

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

OK:

Power window components are installed correctly.

NG

INSTALL PARTS CORRECTLY

OK

9.	CHECK DTC OUTPUT

(a) Turn the ignition switch to ON.

(b) Wait for at least 10 seconds, and then turn the ignition switch to ON.

(c) Check for DTCs (See page ).

Result

Result	Proceed to
OK	A
NG (Driver side power window)	B
NG (Front passenger side power window)	C

A

END

B

REPLACE FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY LH

C

REPLACE FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY RH