Rear Power Window RH does not Operate with Rear Power Window Switch RH: Wiring Diagram

1. Check that the rear power window RH manual UP/ DOWN functions on multiplex network master switch operate normally.

   OK: Remote UP/DOWN functions operate normally. 

NG : Go to step 2 

OK : REPLACE MULTIPLEX NETWORK SWITCH ASSEMBLY 

1. Select the ACTIVE TEST, use the intelligent tester to generate a control command, and then check the power window.

   Multiplex network switch assembly (rear RH): 

   ITEM TESTER DIAGNOSIS CHART
   
   

   Item	Test Details	Diagnostic Note
   P/W UP/DOWN	Power Window UP/DOWN	-

   OK: Rear power window RH operates normally. 

   CAUTION: Be careful to avoid injuries as this test causes vehicle parts to move.

NG : Go to step 3 

OK : REPLACE REAR MULTIPLEX NETWORK SWITCH ASSEMBLY RH 

1. Remove the RR DOOR RH, RH-IG and AM2 fuses from the cowl side junction block RH.
2. Remove the MPX-B and D/C CUT fuses from the engine room No. 1 relay block.
3. Measure the resistance of the fuses.

   Standard resistance: Below 1 Ω 

NG : REPLACE FUSE 

OK : GO TO NEXT STEP 

1. Disconnect the S1 switch connector.
2. Disconnect the O4 motor connector.
3. Measure the resistance of the wire harness side connectors.

   Standard resistance 

   TESTER CONNECTION SPECIFICATION CHART
   
   

   Tester Connection	Specified Condition
   S1-6 (U) - O4-1 (U)	Below 1 Ω
   S1-1 (D) - O4-2 (D)	Below 1 Ω
   S1-6 (U) or O4-1 (U) - Body ground	10 kΩ or higher
   S1-1 (D) or O4-2 (D) - Body ground	10 kΩ or higher

   Fig 3: Measuring Resistance Of Wire Harness Side Connectors

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG : REPAIR OR REPLACE HARNESS AND CONNECTOR 

OK : GO TO NEXT STEP 

1. Disconnect the S1 switch connector.
2. Disconnect the Q3 ECU connector.
3. Measure the resistance of the wire harness side connectors.

   Standard resistance 

   TESTER CONNECTION SPECIFICATION CHART
   
   

   Tester Connection	Specified Condition
   S1-7 (+B) - Q3-5 (BDRJ)	Below 1 Ω
   S1-12 (E) - Q3-2 (PWE)	Below 1 Ω
   S1-7 (+B) or Q3-5 (BDRJ) - Body ground	10 kΩ or higher
   S1-12 (E) or Q3-2 (PWE) - Body ground	10 kΩ or higher

   Fig 4: Identifying Q3 ECU Connector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG : REPAIR OR REPLACE HARNESS AND CONNECTOR 

OK : GO TO NEXT STEP 

1. Disconnect the Q3 ECU connector.
2. Measure the voltage and resistance of the wire harness side connector.

   Standard voltage 

   TESTER CONNECTION SPECIFICATION CHART
   
   

   Tester Connection	Condition	Specified Condition
   Q3-4 (CPUB) - Body ground	Always	10 to 14 V
   Q3-6 (BDR) - Body ground	Always	10 to 14 V
   Q3-3 (SIG) - Body ground	Engine switch on (IG)	10 to 14 V

   Standard resistance 

   TESTER CONNECTION SPECIFICATION CHART
   
   

   Tester Connection	Condition	Specified Condition
   Q3-1 (GND) - Body ground	Always	Below 1 Ω

   Fig 5: Measuring Voltage And Resistance Of Wire Harness Side Connector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG : REPAIR OR REPLACE HARNESS AND CONNECTOR 

OK : GO TO NEXT STEP 

1. Disconnect the Q3 ECU connector.
2. Measure the resistance of the wire harness side connector.

   Standard resistance 

   TESTER CONNECTION SPECIFICATION CHART
   
   

   Tester Connection	Specified Condition
   Q3-18 (SEL1) - Q3-19 (SELE)	Below 1 Ω
   Q3-18 (SEL1) or Q3-19 (SELE) - Body ground	10 kΩ or higher

   Fig 6: Measuring Resistance Of Wire Harness Side Connector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG : REPAIR OR REPLACE HARNESS AND CONNECTOR 

OK : GO TO NEXT STEP 

1. Remove the motor.
2. Apply battery voltage to connector terminals 1 and 2.
   NOTE: Do not apply battery voltage to any terminals except terminals 1 and 2.
3. Check that the motor gear rotates smoothly as follows.

   OK 

   MEASUREMENT CONDITION CHART
   
   

   Measurement Condition	Specified Condition
   Battery positive (+) --> 1 Battery negative (-) --> 2	Motor gear rotates clockwise
   Battery positive (+) --> 2 Battery negative (-) --> 1	Motor gear rotates counterclockwise

   Fig 7: Identifying Motor

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG : REPLACE REAR POWER WINDOW REGULATOR MOTOR ASSEMBLY RH 

OK : GO TO NEXT STEP 

1. Temporarily replace the multiplex network switch assembly (rear RH) with a new or normally functioning one.
2. Check that the power window operates normally.

   OK: Power window operates normally. 

NG : REPLACE REAR MULTIPLEX NETWORK DOOR ECU RH (REAR DOOR RH ECU) 

OK : END (MULTIPLEX NETWORK SWITCH ASSEMBLY (REAR RH) IS FAULTY)