POWER WINDOW CONTROL SYSTEM(for Models with Jam Protection Function on Driver Door Window Only), Diagnostic DTC:B2312

DTC Code	DTC Name
B2312	Power Window Switch Malfunction

DESCRIPTION

The front door window regulator assembly (for driver door) is operated by the power window regulator master switch assembly. The front door window regulator assembly (for driver door) has motor, regulator and ECU functions.

This DTC is stored when the ECU built into the front door window regulator assembly (for driver door) determines that the power window regulator master switch assembly is stuck.


DTC No.	Detection Item	DTC Detection Condition	Trouble Area
B2312	Power Window Switch Malfunction	Power window regulator master switch assembly (for driver door) stuck Power window regulator master switch assembly held in same position for more than 20 seconds	Power window regulator master switch assembly Front door window regulator assembly (for driver door) Wire harness or connector

WIRING DIAGRAM

for LHD
for RHD

CAUTION / NOTICE / HINT

Note:

DTC B2312 is stored in the front door window regulator assembly (for driver door) (power window ECU).
If the front door window regulator assembly (for driver door) has been replaced with a new one, initialize the power window control system.
Click here
Inspect the fuses for circuits related to this system before performing the following procedure.

Tip:

If DTC B2312 is not output again after the DTC has been cleared, the DTC was output due to the switch being held.

PROCEDURE

CHECK DTC OUTPUT

Clear the DTC.
Click here

Body Electrical > D-Door Motor > Clear DTCs
Check for DTCs.
Click here

Body Electrical > D-Door Motor > Trouble Codes

OK

DTC B2312 is not output.

Result


Proceed to
OK
NG

OK

END (DUE TO SWITCH BEING OPERATED FOR 20 SECONDS OR MORE)

NG

READ VALUE USING GTS (D-DOOR MOTOR)

Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Enter the following menus: Body Electrical / D-Door Motor / Data List.

Read the Data List according to the display on the GTS.

Body Electrical > D-Door Motor > Data List


Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
D Door P/W Auto SW	Driver door power window auto switch signal	ON or OFF	ON: Driver door power window auto switch being operated OFF: Driver door power window auto switch not being operated	-
D Door P/W Up SW	Driver door power window manual up switch signal	ON or OFF	ON: Driver door power window manual up switch being operated OFF: Driver door power window manual up switch not being operated	-
D Door P/W Down SW	Driver door power window manual down switch signal	ON or OFF	ON: Driver door power window manual down switch being operated OFF: Driver door power window manual down switch not being operated	-

Body Electrical > D-Door Motor > Data List


Tester Display
D Door P/W Auto SW
D Door P/W Up SW
D Door P/W Down SW

OK

On the GTS screen, ON or OFF is displayed accordingly.

Result


Proceed to
OK
NG

OK

REPLACE FRONT DOOR WINDOW REGULATOR ASSEMBLY (FOR DRIVER DOOR)

except Sedan:Click here

for Sedan:Click here

NG

CHECK HARNESS AND CONNECTOR (POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY - FRONT DOOR WINDOW REGULATOR ASSEMBLY (FOR DRIVER DOOR))

Disconnect the H11*1 or G11*2 power window regulator master switch assembly connector.
Disconnect the H14*1 or G5*2 front door window regulator assembly (for driver door) connector.
- *1: for LHD
- *2: for RHD

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

Standard Resistance

Table 1. for LHD with Rear Power Window
Tester Connection	Condition	Specified Condition
H11-8 (U) - Body ground	Always	10 kΩ or higher
H11-5 (D) - Body ground	Always	10 kΩ or higher
H11-4 (A) - Body ground	Always	10 kΩ or higher
H14-10 (UP) - Body ground	Always	10 kΩ or higher
H14-7 (DOWN) - Body ground	Always	10 kΩ or higher
H14-4 (AUTO) - Body ground	Always	10 kΩ or higher

Table 2. for LHD without Rear Power Window
Tester Connection	Condition	Specified Condition
H11-18 (U) - Body ground	Always	10 kΩ or higher
H11-10 (D) - Body ground	Always	10 kΩ or higher
H11-1 (A) - Body ground	Always	10 kΩ or higher
H14-10 (UP) - Body ground	Always	10 kΩ or higher
H14-7 (DOWN) - Body ground	Always	10 kΩ or higher
H14-4 (AUTO) - Body ground	Always	10 kΩ or higher

Table 3. for RHD with Rear Power Window
Tester Connection	Condition	Specified Condition
G11-1 (U) - Body ground	Always	10 kΩ or higher
G11-5 (D) - Body ground	Always	10 kΩ or higher
G11-4 (A) - Body ground	Always	10 kΩ or higher
G5-10 (UP) - Body ground	Always	10 kΩ or higher
G5-7 (DOWN) - Body ground	Always	10 kΩ or higher
G5-4 (AUTO) - Body ground	Always	10 kΩ or higher

Table 4. for RHD without Rear Power Window
Tester Connection	Condition	Specified Condition
G11-9 (U) - Body ground	Always	10 kΩ or higher
G11-6 (D) - Body ground	Always	10 kΩ or higher
G11-18 (A) - Body ground	Always	10 kΩ or higher
G5-10 (UP) - Body ground	Always	10 kΩ or higher
G5-7 (DOWN) - Body ground	Always	10 kΩ or higher
G5-4 (AUTO) - Body ground	Always	10 kΩ or higher

Result


Proceed to
OK
NG

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

INSPECT POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY

Remove the power window regulator master switch assembly.
Click here

*A	w/ Rear Power Window
*B	w/o Rear Power Window
*a	Component without harness connected (Power Window Regulator Master Switch Assembly (for LHD))

for LHD:

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

Standard Resistance

Table 5. w/ Rear Power Window
Tester Connection	Condition	Specified Condition
8 (U) - 1 (E)	Released	10 kΩ or higher
8 (U) - 4 (A)	Released	10 kΩ or higher
4 (A) - 1 (E)	Released	10 kΩ or higher
5 (D) - 1 (E)	Released	10 kΩ or higher
4 (A) - 5 (D)	Released	10 kΩ or higher

Table 6. w/o Rear Power Window
Tester Connection	Condition	Specified Condition
18 (U) - 7 (E)	Released	10 kΩ or higher
18 (U) - 1 (A)	Released	10 kΩ or higher
1 (A) - 7 (E)	Released	10 kΩ or higher
10 (D) - 7 (E)	Released	10 kΩ or higher
1 (A) - 10 (D)	Released	10 kΩ or higher

*A	w/ Rear Power Window
*B	w/o Rear Power Window
*a	Component without harness connected (Power Window Regulator Master Switch Assembly (for RHD))

for RHD:

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

Standard Resistance

Table 7. w/ Rear Power Window
Tester Connection	Condition	Specified Condition
1 (U) - 9 (E)	Released	10 kΩ or higher
1 (U) - 4 (A)	Released	10 kΩ or higher
4 (A) - 9 (E)	Released	10 kΩ or higher
5 (D) - 9 (E)	Released	10 kΩ or higher
4 (A) - 5 (D)	Released	10 kΩ or higher

Table 8. w/o Rear Power Window
Tester Connection	Condition	Specified Condition
9 (U) - 7 (E)	Released	10 kΩ or higher
9 (U) - 18 (A)	Released	10 kΩ or higher
18 (A) - 7 (E)	Released	10 kΩ or higher
6 (D) - 7 (E)	Released	10 kΩ or higher
18 (A) - 6 (D)	Released	10 kΩ or higher

Result


Proceed to
OK
NG

OK

REPLACE FRONT DOOR WINDOW REGULATOR ASSEMBLY (FOR DRIVER DOOR)

except Sedan:Click here

for Sedan:Click here

NG

REPLACE POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY

Click here