Inspection Procedure

1. Check that the DTC B1221 is output when power window master switch is operated.

HINT:

• If B1221 is output when the switch is not operated, it is detected the switch sticking.
• If B1221 is not output when switch is operated, it is detected that the switch contact condition is bad.

1. NG: GO TO FLOW CHART (See  DTC B1221 POWER WINDOW SWITCH CIRCUIT ON DRIVER DOOR  ) 
2. OK: GO TO NEXT STEP 

1. Check the power window master switch condition by the data monitor.

   Standard: (Driver door ECU) 

   DRIVER WINDOW SWITCH OPERATION
   
   

   Item	Driver window switch operation	Hand-held tester indication
   P/W AUTO SW	OFF --> Operated	OFF --> ON

1. OK: REPLACE MULTIPLEX NETWORK DOOR ECU FRONT RH 
2. NG: GO TO NEXT STEP 

1. Remove the power window master switch.
2. Check the continuity between the terminals when the power window switch for driver door is operated.

   Standard: 

   CONTINUITY CONDITIONS REFERENCE
   
   

   Switch position	Terminal No.	Specified condition
   Auto-up	6 <--> 20 <--> 16	Continuity
   Manual-up	6 <--> 20	Continuity
   Off	-	No continuity
   Manual-down	6 <--> 11	Continuity
   Auto-down	6 <--> 11 <--> 16	Continuity

   Fig 1: Checking Power Window Regulator Motor Assembly

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. NG: REPLACE POWER WINDOW REGULATOR MASTER SWITCH ASSY 
2. OK: GO TO NEXT STEP 

1. Disconnect the master switch and D17 ECU connectors.
   Fig 2: Checking Wire Harness Of Power Window Regulator Master Switch Assembly

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Check the continuity between the connector terminals of master switch and ECU.

   Standard: 

   CONTINUITY CONDITIONS REFERENCE
   
   

   Terminal No.	Specified condition
   P14-3 <--> D17-5	Continuity
   P14-13 <--> D17-16
   P14-14 <--> D17-15
   P14-15 <--> D17-14

1. NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 
2. OK: REPLACE MULTIPLEX NETWORK DOOR ECU FRONT LH