Inspection Procedure

1. Turn the ignition switch ON.
2. Operate the rear wiper and turn the rear wiper switch OFF.
3. Check that the rear wiper stops at the retract position when the rear wiper switch is turned OFF.
   Fig 1: Locating Rear Wiper Switch

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE BACK DOOR POWER WINDOW REGULATOR MOTOR ASSEMBLY 

OK: GO TO NEXT STEP 

1. Using the handheld tester, read the DTC when the back power window switch is operated.
   1. When DTC B1287 is output, proceed to A.
   2. When no DTC is output, proceed to B.
   3. When DTC B1241 is output, proceed to C.

A: INSPECT MULTIPLEX COMMUNICATION SYSTEM 

B: INSPECT BACK DOOR POWER WINDOW REGULATOR SWITCH ASSEMBLY 

C: GO TO NEXT STEP 

1. Check the condition of the retract switch using the data list.

   Standard: 

   Data list for back door ECU 

   DATA LIST FOR BACK DOOR ECU
   
   

   Measurement Item	Label	Parameter
   Wiper retract switch	WIPER RTRCT SW	ON

NG: Go to step  6

OK: GO TO NEXT STEP 

1. Disconnect the B9 ECU connector.
2. Disconnect the B11 motor connector.
   Fig 2: 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 - POWER WINDOW MOTOR
   
   

   Terminal No.	Specified Condition
   B9-25 - B11-5	Continuity
   B9-13 - B11-4	Continuity

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

   Standard 

   BACK DOOR ECU - GROUND
   
   

   Terminal No.	Specified Condition
   B9-13-Body ground	No continuity
   B9-25 - Body ground	No continuity

NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 

OK: GO TO NEXT STEP 

1. Remove the motor.
2. Apply battery voltage between the connector terminals and check that the motor gear rotates smoothly.
   NOTE: Do not apply battery voltage to any terminals except terminals 4 and 5.

   Fig 3: Inspecting Back Door Power Window Regulator Motor Assembly

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard 

   BACK DOOR POWER WINDOW REGULATOR MOTOR ASSEMBLY
   
   

   Terminal No.	Specified Condition
   Battery positive voltage → 5 Battery negative voltage → 4	Counterclockwise
   Battery positive voltage → 4 Battery negative voltage → 5	Clockwise

NG: REPLACE BACK DOOR POWER WINDOW REGULATOR MOTOR ASSEMBLY 

OK: CHECK AND REPLACE MULTIPLEX NETWORK DOOR ECU BACK 

1. Disconnect the B9 ECU connector.
2. Disconnect the B23 motor connector.
   Fig 4: Identifying B9 And R23 Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Check the continuity between the wire harness side connectors.

   Standard 

   TERMINAL NUMBER SPECIFIED CONDITION
   
   

   Terminal No.	Specified Condition
   B9-12 - R23-1	Continuity
   B9-18 - R23-2	Continuity

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

   Standard 

   BACK DOOR ECU - GROUND
   
   

   Terminal No.	Specified Condition
   B9-12 - Body ground	No continuity
   B9-18 - Body ground	No continuity

NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 

OK: REPLACE BACK DOOR POWER WINDOW REGULATOR MOTOR ASSEMBLY