B2312
WINDOW / GLASS: POWER WINDOW CONTROL SYSTEM: B2312: Power Window Switch Malfunction
B2312 - Power Window Switch Malfunction
DESCRIPTION
The power window regulator motor assemblies are operated by the multiplex network master switch assembly, power window regulator switch assembly or rear power window regulator switch assemblies. The power window regulator motor assemblies have motor, regulator and ECU functions.
This DTC is output when the ECU built into a regulator motor and master switch determine that the multiplex network master switch assembly, power window regulator switch assembly or rear power window regulator switch assembly is stuck.
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
HINT
If DTC B2312 is not output again after the DTC has been cleared, the DTC was output due to the switch being held.
NOTICE:
* DTC B2312 can be stored in the multiplex network master switch assembly and in each power window regulator motor assembly (power window ECU).
* If a power window regulator motor assembly has been replaced with a new one, initialize the power window control system Initialization.
PROCEDURE
1. CHECK FOR DTC
(a) Clear the DTCs 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) Check the parts which the DTCs have been output from.
Result:
B -- READ VALUE USING TECHSTREAM (D-Door Motor)
C -- READ VALUE USING TECHSTREAM (P-Door Motor)
D -- READ VALUE USING TECHSTREAM (RL-Door Motor)
E -- READ VALUE USING TECHSTREAM (RR-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 power 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.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
5. REPLACE MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY
(a) Replace the multiplex network master switch assembly Removal.
NEXT -- Continue to next step.
6. CHECK FOR DTC
(a) Clear the DTCs Reading and Clearing Diagnostic Trouble Codes.
(b) Check for DTCs Reading and Clearing Diagnostic Trouble Codes.
OK:
DTC B2312 is not output.
NG -- REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Driver Side) Removal
OK -- END (MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY WAS WAS DEFECTIVE)
7. READ VALUE USING TECHSTREAM (P-Door Motor)
(a) Connect the Techstream to the DLC3.
(b) Turn the power 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
OK -- REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Front Passenger Side) Removal
8. 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
NG -- REPLACE POWER WINDOW REGULATOR SWITCH ASSEMBLY Removal
OK -- Continue to next step.
9. 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:
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Front Passenger Side) Removal
10. READ VALUE USING TECHSTREAM (RL-Door Motor)
(a) Connect the Techstream to the DLC3.
(b) Turn the power 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 REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY (for LH Side)
OK -- REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Rear LH side) Removal
11. INSPECT REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY (for LH Side)
(a) Remove the rear power window regulator switch assembly (for LH side) 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 (for LH side) Removal
OK -- Continue to next step.
12. 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:
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Rear LH side) Removal
13. READ VALUE USING TECHSTREAM (RR-Door Motor)
(a) Connect the Techstream to the DLC3.
(b) Turn the power 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 REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY (for RH Side)
OK -- REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Rear RH side) Removal
14. INSPECT REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY (for RH Side)
(a) Remove the rear power window regulator switch assembly (for RH side) 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 (for RH side) Removal
OK -- Continue to next step.
15. 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:
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Rear RH side) Removal