Inspection Procedure

1. Check for LIN communication system DTCs related to the power window control system.

   OK: LIN communication system DTCs are not output. 

NG: GO TO LIN COMMUNICATION SYSTEM  (See HOW TO PROCEED WITH TROUBLESHOOTING )

OK: Go to next step 

1. Turn the window lock switch OFF and operate the switches on the multiplex network master switch. Check that the remote UP/DOWN function operates normally.

   OK: Remote UP/ DOWN function operates normally. 

   Fig 1: Identifying Precaution For Window Lock Switch

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: Go to step   3 

OK: END 

1. Use the Data List to check if the multiplex network master switch is functioning properly.

   Master Switch: 

   DATA LIST TABLE
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   P Door P/W Auto SW	Front passenger side power window remote auto UP/ DOWN switch signal / ON or OFF	ON: Front passenger side power window remote auto UP/DOWN switch on master switch operated OFF: Front passenger side power window switch on master switch not operated	-
   RR Door P/W Auto SW	Rear power window RH remote auto UP/ DOWN switch signal / ON or OFF	ON: Rear power window RH remote auto UP/DOWN switch on master switch operated OFF: Rear power window switch RH on master switch not operated	-
   RL Door P/W Auto SW	Rear power window LH remote auto UP/ DOWN switch signal / ON or OFF	ON: Rear power window LH remote auto UP/DOWN switch on master switch operated OFF: Rear power window switch LH on master switch not operated	-
   P Door P/W Up SW	Front passenger side power window remote manual UP switch signal / ON or OFF	ON: Front passenger side power window remote manual UP switch on master switch operated OFF: Front passenger side power window switch on master switch not operated	-
   RR Door P/W up switch	Rear power window RH remote manual UP switch signal / ON or OFF	ON: Rear power window RH remote manual UP switch on master switch operated OFF: Rear power window switch RH on master switch not operated	-
   RL Door P/W up switch	Rear power window LH remote manual UP switch signal / ON or OFF	ON: Rear power window LH remote manual UP switch on master switch operated OFF: Rear power window switch LH on master switch not operated	-
   P Door P/W Down SW	Front passenger side power window remote manual DOWN switch signal / ON or OFF	ON: Front passenger side power window remote manual DOWN switch on master switch operated OFF: Front passenger side power window switch on master switch not operated	-
   RR Door P/W Down SW	Rear power window RH remote manual DOWN switch signal / ON or OFF	ON: Rear power window RH remote manual DOWN switch on master switch operated OFF: Rear power window switch RH on master switch not operated	-
   RL Door P/W Down SW	Rear power window LH remote manual DOWN switch signal / ON or OFF	ON: Rear power window LH remote manual DOWN switch on master switch operated OFF: Rear power window switch LH on master switch not operated	-
   Window Lock Switch Status	Power window LOCK switch / ON or OFF	ON: Power window lock switch LOCK position OFF: Power window lock switch UNLOCK position	-

   OK: Techstream display changes normally when master switch is operated. 

NG: REPLACE MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY  (See REMOVAL  )

OK: REPLACE MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK)