Inspection Procedure

1. Turn the ignition switch ON.
2. Open the back door glass.
3. Press the back door power window switch until the door glass is fully closed, and continue to hold the switch 1 second more even after the door glass is fully closed.
4. Check that the AUTO UP/DOWN function operates normally.

OK: END 

NG: GO TO NEXT STEP 

1. Disconnect the B9 ECU connector.
2. Disconnect the B11 motor connector.
Fig 1: Identifying B9 And B11 Connector Terminals
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Check the continuity between the wire harness side connectors.

   Standard 

   BACK DOOR ECU - WINDOW MOTOR
   
   

   Terminal No.	Specified Condition
   B9-23 ← → B11-3	Continuity
   B9-17 ← → B11-2	Continuity
   B9-16 ← → B11-6	Continuity
   B9-11 ← → B11-1	Continuity

4. Check the continuity between the B9 ECU connector and the body ground.

   Standard 

   BACK DOOR ECU - BODY GROUND
   
   

   Terminal No.	Specified Condition
   B9-11 ← → Body ground	No continuity
   B9-16 ← → Body ground	No continuity
   B9-17 ← → Body ground	No continuity

OK: REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY 

NG: REPAIR OR REPLACE HARNESS AND CONNECTOR