B2312

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

DESCRIPTION

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

This DTC is output when the ECU built into the regulator motor determines that the multiplex network master switch assembly or power window regulator switch assembly is stuck.

HINT
DTC B2312 can be stored in the multiplex network master switch assembly and in each power window regulator motor assembly (power window ECU).

Master Switch (Multiplex Network Master Switch Assembly)





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





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





RL-Door Motor (Rear Power Window Regulator Motor Assembly LH)





RR-Door Motor (Rear Power Window Regulator Motor Assembly RH)





WIRING DIAGRAM

1. for Driver Side





2. for Front Passenger Side





3. for Rear LH Side





4. for Rear RH Side





INSPECTION PROCEDURE

NOTICE:
* When the power window regulator motor assembly 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 reinitialized by repeating the following operations at least 5 times:
(1) Close the power window by fully pulling up the multiplex network master switch assembly or power window regulator switch assembly and holding it at the auto up position.
(2) Open the power window by fully pushing down the switch.

PROCEDURE

1. CHECK DTC OUTPUT

(a) Clear the DTC Reading and Clearing Diagnostic Trouble Codes.

(b) Check for DTCs Reading and Clearing Diagnostic Trouble Codes.

OK:

No DTCs output.

NG -- CHECK DTC

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

2. CHECK DTC

(a) Check for DTC output conditions.

Result:





E -- READ VALUE USING TECHSTREAM (RR-DOOR MOTOR)

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

C -- READ VALUE USING TECHSTREAM (P-DOOR MOTOR)

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

A -- REPLACE MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY Removal

3. 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 Electrical / D-Door Motor / Data List.

(e) Read the Data List according to the display on the Techstream.

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





OK:

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

NG -- CHECK HARNESS AND CONNECTOR (MASTER SWITCH - DRIVER SIDE MOTOR)

OK -- REPLACE FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY LH Removal

4. CHECK HARNESS AND CONNECTOR (MASTER SWITCH - DRIVER SIDE MOTOR)

(a) Disconnect the multiplex network master switch assembly connector.

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

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

Standard Resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY LH Removal

5. 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 Electrical / P-Door Motor / Data List.

(e) Read the Data List according to the display on the Techstream.

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





OK:

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

NG -- INSPECT FRONT POWER WINDOW REGULATOR SWITCH ASSEMBLY RH

OK -- REPLACE FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY RH Removal

6. INSPECT FRONT POWER WINDOW REGULATOR SWITCH ASSEMBLY RH

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





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

Standard Resistance:





Text in Illustration





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

7. CHECK HARNESS AND CONNECTOR (FRONT RH SIDE SWITCH - FRONT RH SIDE MOTOR)

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

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

Standard Resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY RH Removal

8. READ VALUE USING TECHSTREAM (RL-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 Electrical / RL-Door Motor / Data List.

(e) Read the Data List according to the display on the Techstream.

RL-Door Motor (Rear Power Window Regulator Motor Assembly LH)





OK:

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

NG -- INSPECT REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY LH

OK -- REPLACE REAR POWER WINDOW REGULATOR MOTOR ASSEMBLY LH Removal

9. INSPECT REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY LH

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





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

Standard Resistance:





Text in Illustration





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

10. CHECK HARNESS AND CONNECTOR (REAR LH SWITCH - REAR LH MOTOR)

(a) Disconnect the rear power window regulator motor assembly LH connector.

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

Standard Resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE REAR POWER WINDOW REGULATOR MOTOR ASSEMBLY LH Removal

11. READ VALUE USING TECHSTREAM (RR-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 Electrical / RR-Door Motor / Data List.

(e) Read the Data List according to the display on the Techstream.

RR-Door Motor (Rear Power Window Regulator Motor Assembly RH)





OK:

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

NG -- INSPECT REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY RH

OK -- REPLACE REAR POWER WINDOW REGULATOR MOTOR ASSEMBLY RH Removal

12. INSPECT REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY RH

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





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

Standard Resistance:





Text in Illustration





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

13. CHECK HARNESS AND CONNECTOR (REAR RH SWITCH - REAR RH MOTOR)

(a) Disconnect the rear power window regulator motor assembly RH connector.

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

Standard Resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE REAR POWER WINDOW REGULATOR MOTOR ASSEMBLY RH Removal