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itsAlex · 07-18-2017, 08:59 PM

So its been a year since I've had this problem with my dome light. I replaced it with an LED bulb, and I have this issue where when the switch is set to "DOOR", the LED will be faintly lit when the doors are closed. When I open a door, the LED will fade darker, and then become a bit brighter again when I close the door. The LED stays faintly lit no matter how long I leave the car to sit, so now I just keep the dome switch to "OFF".

I'm pretty sure I know what the problem is, there's a blown MOSFET in the BIU under the driver's side and the component that needs to be replaced is an "a1764" MOSFET. I found this info from an older post:

http://www.ft86club.com/forums/showp...39&postcount=8

My question is, if I open up the BIU to perform any sort of work, am I voiding any significant warranty? I have the standard 3 year warranty that Toyota Canada offers on a new vehicle and I'm not too sure if replacing the BIU would be covered by that warranty.

07-18-2017, 08:59 PM	#1
itsAlex Senior Member Join Date: Jan 2016 Drives: 2016 4Runner / 2016 FR-S Location: Brampton, Ontario Posts: 145 Thanks: 19 Thanked 61 Times in 37 Posts Mentioned: 1 Post(s)	Will I void my warranty if I do this? So its been a year since I've had this problem with my dome light. I replaced it with an LED bulb, and I have this issue where when the switch is set to "DOOR", the LED will be faintly lit when the doors are closed. When I open a door, the LED will fade darker, and then become a bit brighter again when I close the door. The LED stays faintly lit no matter how long I leave the car to sit, so now I just keep the dome switch to "OFF". I'm pretty sure I know what the problem is, there's a blown MOSFET in the BIU under the driver's side and the component that needs to be replaced is an "a1764" MOSFET. I found this info from an older post: http://www.ft86club.com/forums/showp...39&postcount=8 My question is, if I open up the BIU to perform any sort of work, am I voiding any significant warranty? I have the standard 3 year warranty that Toyota Canada offers on a new vehicle and I'm not too sure if replacing the BIU would be covered by that warranty. __________________ I pay more per month for insurance than I pay for the FRS.