Remote Up / Down Function does not Operate: Procedure

CHECK POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY (WINDOW LOCK SWITCH)
1. Turn the window lock switch OFF and operate the switches on the master switch. Check that the remote UP/DOWN function operates normally.
  
  Fig 1: Identifying Window Lock Switch
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  OK
  
  Remote UP/DOWN function operates normally.
OK → END

NG → Go to next step
REPLACE POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY. Refer to REMOVAL