How to modify the tail lights failure sensor for UCF20/21
#17
Lexus Test Driver
iTrader: (3)
Look like the depo ones I have. Did they come with resistor boxes? Mine did and the dash light was out up until I replaced my trunk lid and now it's on... I need to check the resistances of my resistor boxes and if my little red box is properly connected since they shaved my antenna and emblems...
#19
Look like the depo ones I have. Did they come with resistor boxes? Mine did and the dash light was out up until I replaced my trunk lid and now it's on... I need to check the resistances of my resistor boxes and if my little red box is properly connected since they shaved my antenna and emblems...
#22
Moderator
Thread Starter
More than 30 JDM models were all successful on this end. An old guy initially failed but it turned out to be his poor eyes that caused him a mistake.
#26
Moderator
Thread Starter
I would analyze the unit if a UCF10/10 were here.
#27
Disabling UCF10/11 Taillight Failure Sensor
That's okay. I'm sure it is very similar to the 95 unit. I will have a look at it when I get the chance. I see that pin 4 goes to the Light Failure Warning Light as per the wiring diagram in the service manual so I'll trace it backwards from there and see if it makes sense to me.
#28
Sorry that I have never analyzed the one for UCF10/11. There isn't any UCF10/11 around here any more. They were all gone already. The law here requires old car owners to pay extra tax and they give up keeping those cars still running well. I hate the law but I have to obey and I'm keeping a 16 years old car.
I would analyze the unit if a UCF10/10 were here.
I would analyze the unit if a UCF10/10 were here.
#29
Moderator
Thread Starter
One of the simple and easy ways is to cut the wire connected to the pin #4 in the drawing kindly provided by 91LS400vgb. This line enables the warning bulb to light up. I don't think there would be no side effect cutting it.
The best way is to remove or lift up a resistor used at the comparator circuit in the unit but without the actual board, I have no idea to show you the exact one.
The best way is to remove or lift up a resistor used at the comparator circuit in the unit but without the actual board, I have no idea to show you the exact one.