DTC B2312: Power Window Switch Malfunction [08/2015 - ]: Procedure

1. Clear the DTCs. Refer to DTC CHECK / CLEAR [08/2015 - ] .
2. Check for DTCs. Refer to DTC CHECK / CLEAR [08/2015 - ] .

   OK

   DTC B2312 is not output.

NG → See step   2 

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

1. Check the parts which the DTCs have been output from.

   Result:

   Result	Proceed to
   DTC output from power window regulator master switch assembly	A
   DTC output from power window regulator motor assembly (for driver door)	B
   DTC output from power window regulator motor assembly (for front passenger door)	C

B → See step   3 

C → See step   7 

A → See step   10 

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON.
3. Turn the Techstream on.
4. Enter the following menus: Body Electrical / D-Door Motor / Data List.
5. Read the Data List according to the display on the Techstream.
   D-DOOR MOTOR
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   D Door P/W Up SW	Driver door power window manual up switch signal / OFF or ON	OFF: Driver door power window manual up switch not being operated ON: Driver door power window manual up switch being operated	-
   D Door P/W Down SW	Driver door power window manual down switch signal / OFF or ON	OFF: Driver door power window manual down switch not being operated ON: Driver door power window manual down switch being operated	-

   OK

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

NG → See step   4 

OK → See step   11 

1. Disconnect the K11 power window regulator master switch assembly connector.
2. Disconnect the K9 power window regulator motor assembly (for driver door) connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   K11-4 (UP) - Body ground	Always	10 kΩ or higher
   K11-5 (DOWN) - Body ground	Always	10 kΩ or higher
   K9-10 (UP) - Body ground	Always	10 kΩ or higher
   K9-7 (DOWN) - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Replace the power window regulator master switch assembly. Refer to REMOVAL [08/2015 - ] .

NEXT: Go to next step 

1. Clear the DTCs. Refer to DTC CHECK / CLEAR [08/2015 - ] .
2. Check for DTCs. Refer to DTC CHECK / CLEAR [08/2015 - ] .

   OK

   DTC B2312 is not output.

NG → See step   11 

OK → END (POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY WAS DEFECTIVE) 

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON.
3. Turn the Techstream on.
4. Enter the following menus: Body Electrical / P-Door Motor / Data List.
5. Read the Data List according to the display on the Techstream.
   P-DOOR MOTOR
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   P Door P/W Auto SW	Front Passenger door power window auto switch signal / OFF or ON	OFF: Front passenger door power window auto switch not being operated ON: Front passenger door power window auto switch being operated	-
   P Door P/W Up SW	Front Passenger door power window manual up switch signal / OFF or ON	OFF: Front passenger door power window manual up switch not being operated ON: Front passenger door power window manual up switch being operated	-
   P Door P/W Down SW	Front Passenger door power window manual down switch signal / OFF or ON	OFF: Front passenger door power window manual down switch not being operated ON: Front passenger door power window manual down switch being operated	-

   OK

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

NG → See step   8 

OK → See step   12 

1. Remove the power window regulator switch assembly. Refer to REMOVAL [08/2015 - ] .
2. Inspect the power window regulator switch assembly. Refer to INSPECTION [08/2015 - ] .

NG → See step   13 

OK: Go to next step 

1. Disconnect the J18 power window regulator motor assembly (for front passenger door) connector.
2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   J15-5 (UP) - Body ground	Always	10 kΩ or higher
   J15-4 (DOWN) - Body ground	Always	10 kΩ or higher
   J15-8 (AUTO) - Body ground	Always	10 kΩ or higher
   J18-10 (UP) - Body ground	Always	10 kΩ or higher
   J18-7 (DOWN) - Body ground	Always	10 kΩ or higher
   J18-4 (AUTO) - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK → See step   12