B2312

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

DTC B2312 - Power Window Switch Malfunction

DESCRIPTION

The power window regulator motor assembly is operated by the power window regulator 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 power window regulator master switch assembly or power window regulator switch assembly is stuck.
HINT: DTC B2312 can be stored in the power window regulator master switch assembly and in each power window regulator motor assembly (power window ECU).

Master Switch (Power Window Regulator 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))





WIRING DIAGRAM

1. for Driver Side





2. for Front Passenger 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 power window regulator 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:





C -- READ VALUE USING TECHSTREAM (P-Door Motor)
B -- READ VALUE USING TECHSTREAM (D-Door Motor)
A -- REPLACE POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY
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 / 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)
4. CHECK HARNESS AND CONNECTOR (MASTER SWITCH - DRIVER SIDE MOTOR)
(a) Disconnect the power window regulator master switch assembly connector.




(b) Disconnect the power window regulator motor assembly (for driver side) connector.
(c) 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 Driver Side)
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 / 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)
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)
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)