From 08/2009

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 and master switch 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 (Power Window Regulator Motor Assembly (for Driver Side))

P-Door Motor (Power Window Regulator Motor Assembly (for Front Passenger Side))

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

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

WIRING DIAGRAM

1. for Driver Side

2. for Front Passenger Side

3. for Rear LH Side

4. for Rear RH Side

INSPECTION PROCEDURE

NOTICE:
* If DTC B2312 is not output again after the DTC has been cleared, the DTC was output due to the switch being held.
* 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:
* Close the power window by fully pulling up the multiplex network master switch assembly, power window regulator switch assembly (for front passenger side) or power window regulator switch assembly and holding it at the auto up position.
* Open the power window by fully pushing down the switch.
PROCEDURE

1. CHECK FOR DTC

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

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

OK:

DTC B2312 is not output.

NG -- CHECK DTC OUTPUT

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

2. CHECK DTC OUTPUT

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

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 engine switch on (IG).

(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 (Power Window Regulator Motor Assembly (for Driver Side))

OK:

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

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

OK -- REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Driver Side) Removal

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

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

(b) Disconnect the power window regulator motor assembly (for driver side) connector.

Text in Illustration

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Driver Side) Removal

5. READ VALUE USING TECHSTREAM (P-Door Motor)

(a) Connect the Techstream to the DLC3.

(b) Turn the engine switch on (IG).

(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 (Power Window Regulator Motor Assembly (for Front Passenger Side))

OK:

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

NG -- INSPECT POWER WINDOW REGULATOR SWITCH ASSEMBLY (for Front Passenger Side)

OK -- REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Front Passenger Side) Removal

6. INSPECT POWER WINDOW REGULATOR SWITCH ASSEMBLY (for Front Passenger Side)

(a) Remove the power window regulator switch assembly (for front passenger side) Removal.

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

Standard Resistance:

Text in Illustration

NG -- REPLACE POWER WINDOW REGULATOR SWITCH ASSEMBLY (for Front Passenger Side) Removal
OK -- Continue to next step.

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

(a) Disconnect the power window regulator motor assembly (for front passenger side) connector.

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

Standard Resistance:

Text in Illustration

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Front Passenger Side) Removal

8. READ VALUE USING TECHSTREAM (RL-Door Motor)

(a) Connect the Techstream to the DLC3.

(b) Turn the engine switch on (IG).

(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 (Power Window Regulator Motor Assembly (for Rear LH Side))

OK:

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

NG -- INSPECT POWER WINDOW REGULATOR SWITCH ASSEMBLY (for Rear LH Side)

OK -- REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Rear LH side) Removal

9. INSPECT POWER WINDOW REGULATOR SWITCH ASSEMBLY (for Rear LH Side)

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

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

Standard Resistance:

Text in Illustration

NG -- REPLACE POWER WINDOW REGULATOR SWITCH ASSEMBLY (for Rear LH side) Removal
OK -- Continue to next step.

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

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

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

Standard Resistance:

Text in Illustration

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Rear LH side) Removal

11. READ VALUE USING TECHSTREAM (RR-Door Motor)

(a) Connect the Techstream to the DLC3.

(b) Turn the engine switch on (IG).

(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 (Power Window Regulator Motor Assembly (for Rear RH Side))

OK:

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

NG -- INSPECT POWER WINDOW REGULATOR SWITCH ASSEMBLY (for Rear RH Side)

OK -- REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Rear RH side) Removal

12. INSPECT POWER WINDOW REGULATOR SWITCH ASSEMBLY (for Rear RH Side)

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

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

Standard Resistance:

Text in Illustration

NG -- REPLACE POWER WINDOW REGULATOR SWITCH ASSEMBLY (for Rear RH side) Removal
OK -- Continue to next step.

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

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

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

Standard Resistance:

Text in Illustration

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Rear RH side) Removal