DTC B2311: Back Door Power Window ECU Inner Motor Failure: Procedure

1. Select the Active Test, use the Techstream to generate a control command, and then check that the back door power window regulator motor operates. Refer to DATA LIST / ACTIVE TEST .
   BACK DOOR P/W
   
   

   Tester Display	Test Part	Control Range	Diagnostic Note
   Back Door Power Window	Back door power window	OFF/UP/DOWN	-

   OK

   The back door power window regulator motor operates.

NG → See step   4 

OK: Go to next step 

1. Initialize the back door power window regulator motor assembly. Refer to INITIALIZATION .
2. Check that the back door power window operates normally by opening and closing the window. Refer to OPERATION CHECK .

   HINT: 

   The power window operates normally.

NEXT: Go to next step 

1. Check that the power window components are installed correctly.

   OK

   Power window components are installed correctly.

   HINT: 

   If the power window components are installed correctly, the problem has been caused by battery disconnection while the ignition switch was ON, or the motor being overheated.

NG → INSTALL PARTS CORRECTLY 

OK → END