Hyperblink fix for 92-94 SC w/ 97 Taillights
01-23-14, 10:36 AM
#62
1JZ Single SC400
iTrader: (59)
Join Date: Jan 2009
Location: Alabama, Roll Tide!
Posts: 8,518
Likes: 0
Received 15 Likes
on
12 Posts
https://www.clublexus.com/forums/sc-...blink-fix.html
I even may try this one. Trying to locate an old set of tails with harness. I knew I should have pulled them at LKQ when I had a chance. LOL
I even may try this one. Trying to locate an old set of tails with harness. I knew I should have pulled them at LKQ when I had a chance. LOL
01-23-14, 03:49 PM
#64
1JZ Single SC400
iTrader: (59)
Join Date: Jan 2009
Location: Alabama, Roll Tide!
Posts: 8,518
Likes: 0
Received 15 Likes
on
12 Posts
Mike, which version did you do? The added bulbs inline with stock harness or the added resistor? If you used the resistor, which type did you use? I looked at Radio Shack and they had like 5 versions I could get with the same specs. They started at .87 and went to 7.97 each.
Thanks
Thanks
01-23-14, 04:35 PM
#65
Mike, which version did you do? The added bulbs inline with stock harness or the added resistor? If you used the resistor, which type did you use? I looked at Radio Shack and they had like 5 versions I could get with the same specs. They started at .87 and went to 7.97 each.
Thanks
Thanks
01-24-14, 12:13 AM
#67
This is an old thead, but I have some new information...
I figured out how the current sensing works and bypassed it. Now my turn signals work like they should and it doesn't affect my emergency lights.
You can't tell if a bulb is gone without going around your car with emergency signals on though.
So... There is a current simulator circuit used when emergency lights are turned on. It will make sure that the lights are blinking at the right rate even when all but one bulb have been broken.
This mod will use that circuit when you use normal signals as well.
All you need is two small general purpose diodes (I used 4148 diodes which are common) .
Here are the instructions:
- Locate, remove and open the flasher unit using the info on this thread.
- Solder the cathode (black stripe) ends to the middle legs of the two transistors.
- Solder the anode ends to end of the resistor you see in the picture (Center one from the three and lower end).
- Make sure the leads do not make contact anywhere else.
- That's it!
I figured out how the current sensing works and bypassed it. Now my turn signals work like they should and it doesn't affect my emergency lights.
You can't tell if a bulb is gone without going around your car with emergency signals on though.
So... There is a current simulator circuit used when emergency lights are turned on. It will make sure that the lights are blinking at the right rate even when all but one bulb have been broken.
This mod will use that circuit when you use normal signals as well.
All you need is two small general purpose diodes (I used 4148 diodes which are common) .
Here are the instructions:
- Locate, remove and open the flasher unit using the info on this thread.
- Solder the cathode (black stripe) ends to the middle legs of the two transistors.
- Solder the anode ends to end of the resistor you see in the picture (Center one from the three and lower end).
- Make sure the leads do not make contact anywhere else.
- That's it!
The following users liked this post:
jdmek998 (12-02-19)
03-13-14, 06:13 PM
#69
I've probably missed obvious answers while skimming this thread, but I've had enough to drink that I don't care.
I'm installing all LED replacements into '97 lights in my '95 SC400.
I do not care to solder capacitors or resistors or whos-a-whats-its if I can help it. I don't mind pulling the bulb from the cluster. I need to pull my airbag light anyway.
I assume I'll need the aftermarket flasher to avoid the hyperblink issue. I got under my dash earlier today and checked out the relay. Mine looks nothing like any other I noticed in this thread.
Check this out.
I'm installing all LED replacements into '97 lights in my '95 SC400.
I do not care to solder capacitors or resistors or whos-a-whats-its if I can help it. I don't mind pulling the bulb from the cluster. I need to pull my airbag light anyway.
I assume I'll need the aftermarket flasher to avoid the hyperblink issue. I got under my dash earlier today and checked out the relay. Mine looks nothing like any other I noticed in this thread.
Check this out.
Last edited by MongooseGA; 03-13-14 at 06:20 PM.
03-13-14, 09:11 PM
#71
Lexus Champion
you can also replace the little metal loop shunt on the other side of the flasher with any ohm resistor really, just has to be a high wattage resistor. i used a 10 and i have LEDs all around and it works. you have to have LEDs all around however because the higher wattage from the halogen bulbs will fry the resistor. here's where i got the resistors, all u need is one 10 ohm, or lower i think. i think if you get the really really low one, bhango who's a memeber here said that u get the stock hyperblinking when a bulb goes out. so if you want that you can get the like .035 resistor or watever it is.
my thread and how i fixed it, been working for a month now:
https://www.clublexus.com/forums/sc-...questions.html
my thread and how i fixed it, been working for a month now:
https://www.clublexus.com/forums/sc-...questions.html
05-06-15, 09:37 AM
#72
So just to clarify my thought process on the 97+ tailight swap on earlier 92-94 models, I have a 1994 Lexus sc300 that I'd like to convert to 97 tail lights.
- The wiring harness is plug and play with all bulbs needed, no issues here.
- Add a 4.7uF 50V capacitor to the stock relay capacitor to solve hyperblink issue.
Is there a particular brand of capacitor you guys are buying?
Anything else I'm missing?
- The wiring harness is plug and play with all bulbs needed, no issues here.
- Add a 4.7uF 50V capacitor to the stock relay capacitor to solve hyperblink issue.
Is there a particular brand of capacitor you guys are buying?
Anything else I'm missing?
Last edited by HiPSI; 05-06-15 at 11:29 AM.
08-07-15, 03:41 PM
#73
Change flasher to 97+?
Instead of modding the flasher, can anyone clarify if changing the flasher on a 92 SC to a 97+ flasher fix the problem?
I am planning to get a 97+ flasher from a junkyard and i want to clarify if it works or not.
Would anyone know the difference between the two flashers?
97+ Part#8198032010 vs 92-94 Part#8198024020
I am planning to get a 97+ flasher from a junkyard and i want to clarify if it works or not.
Would anyone know the difference between the two flashers?
97+ Part#8198032010 vs 92-94 Part#8198024020
08-08-15, 09:54 AM
#74
Instead of modding the flasher, can anyone clarify if changing the flasher on a 92 SC to a 97+ flasher fix the problem?
I am planning to get a 97+ flasher from a junkyard and i want to clarify if it works or not.
Would anyone know the difference between the two flashers?
97+ Part#8198032010 vs 92-94 Part#8198024020
I am planning to get a 97+ flasher from a junkyard and i want to clarify if it works or not.
Would anyone know the difference between the two flashers?
97+ Part#8198032010 vs 92-94 Part#8198024020
