B2312

WINDOW / GLASS: POWER WINDOW CONTROL SYSTEM: B2312: Power Window Switch Malfunction
B2312 - Power Window Switch Malfunction

DESCRIPTION

The power window regulator motor consists of the motor, regulator and ECU. The power window regulator motor is driven by operating the power window switch. This DTC is output when the ECU built into the regulator motor determines that the power window switch is stuck.

NOTICE:
* When the power window regulator motor is reinstalled or replaced, the power window control system must be initialized.
* After a 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 resumed by repeating the following operation at least 5 times:
(a) Close the power window by fully pulling up the power window switch and holding it in the AUTO UP position.
(b) Open the power window by fully pushing down the power window switch.

Power Window Regulator Master Switch Assembly





Front Power Window Regulator Motor Assembly LH (Driver Side)





Front Power Window Regulator Motor Assembly RH (Passenger Side)





WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CHECK LIN COMMUNICATION SYSTEM

(a) Check for LIN communication system DTCs related to the power window control system LIN Communication System.

OK:

LIN communication system DTCs are not output.

NG -- GO TO LIN COMMUNICATION SYSTEM LIN Communication System
OK -- Continue to next step.

2. CHECK FOR DTC

(a) Check where DTC B2312 is output from.

Result





B -- READ VALUE USING TECHSTREAM (D-DOOR MOTOR)

C -- READ VALUE USING TECHSTREAM (P-DOOR MOTOR)
A -- Continue to next step.

3. READ VALUE USING TECHSTREAM (MASTER SWITCH)

(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 / Master Switch / Data List /

(e) According to the display on the Techstream, read the Data List.

Master Switch





OK:

The Techstream display changes normally when master switch is operated.

NG -- REPLACE POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY Removal

OK -- END (DUE TO KEEPING SWITCH OPERATED FOR 20 SECONDS OR MORE)

4. READ VALUE USING TECHSTREAM (D-DOOR MOTOR)

(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 / D-Door Motor / Data List /

(e) According to the display on the Techstream, read the Data List.

D-Door Motor





OK:

The Techstream display changes normally when master switch is operated.

NG -- CHECK HARNESS AND CONNECTOR (POWER WINDOW MASTER SWITCH - POWER WINDOW REGULATOR MOTOR)

OK -- END (DUE TO KEEPING SWITCH OPERATED FOR 20 SECONDS OR MORE)

5. CHECK HARNESS AND CONNECTOR (POWER WINDOW MASTER SWITCH - POWER WINDOW REGULATOR MOTOR)

(a) Disconnect the F1 power window regulator master switch assembly connector.

(b) Disconnect the F4 front power window regulator motor assembly LH connector.

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

Standard Resistance:





(d) Reconnect the power window regulator motor assembly LH connector.

(e) Reconnect the power window regulator master switch assembly connector.

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE FRONT DOOR WINDOW REGULATOR SUB-ASSEMBLY LH Disassembly

6. READ VALUE USING TECHSTREAM (P-DOOR MOTOR)

(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 / P-Door Motor / Data List /

(e) According to the display on the Techstream, read the Data List.

P-Door Motor





OK:

The tester display changes normally when master switch is operated.

NG -- INSPECT POWER WINDOW REGULATOR SWITCH ASSEMBLY

OK -- END (DUE TO KEEPING SWITCH OPERATED FOR 20 SECONDS OR MORE)

7. INSPECT POWER WINDOW REGULATOR SWITCH ASSEMBLY

(a) Remove the power window regulator switch assembly Removal.





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

Standard Resistance:





Text in Illustration





(c) Reinstall the power window regulator switch assembly.

NG -- REPLACE POWER WINDOW REGULATOR SWITCH ASSEMBLY Removal
OK -- Continue to next step.

8. CHECK HARNESS AND CONNECTOR (POWER WINDOW REGULATOR SWITCH - POWER WINDOW REGULATOR MOTOR)

(a) Disconnect the E2 power window regulator switch assembly connector.

(b) Disconnect the E4 front power window regulator motor assembly RH connector.

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

Standard Resistance:





(d) Reconnect the front power window regulator motor assembly RH connector.

(e) Reconnect the power window regulator switch assembly connector.

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE FRONT DOOR WINDOW REGULATOR SUB-ASSEMBLY RH Disassembly