scottmcphee Posted June 16, 2006 Share Posted June 16, 2006 what's needed is one pulser, with two outputs that are enabled by individual grounding. ground one = left LEDs blink, ground the other = right LEDs blink, and ground both (2 diodes to common point) and all LEDs blink maybe you buy just one solid state pulser, and split its output to two different paths that can ground enabled as described.. A circuit with a just a few components. Scott Hey, the hazards are always normal.. that's the clue!! So we can hack the denso for LEDs and not get the hyper flash. If the theory holds just need to add 2 diodes and 2 transistors into the denso: make it so signaling either left or right trips hazard line so all four corners are flashing. One diode from hazard input line to each signal input line should do this. And then also snub out the "other signal direction". So splice a NPN transistor into the low side of each relay (Collector to coil, Emitter to denso microcontroller line, and Base to the signal line of the opposite signaling direction.) Now, when you signal left or right, the hazards are actually tripping but only half of the car is allowed to blink. And when you do use the hazard button both sides of the car blink as normal because both signal lines are normally held high.. and diodes do their job by protecting current flowing the other way. Since the hazard circuit driver always makes nice normal blinks no matter what LEDs or light bulbs are plugged into the sockets... this should do the job. Scott Link to comment Share on other sites More sharing options...
subatwo Posted June 16, 2006 Author Share Posted June 16, 2006 This is getting more intriguing by the minute. I'm going to have to start thinking about this one. Link to comment Share on other sites More sharing options...
meier motor sports Posted June 16, 2006 Share Posted June 16, 2006 Hey, the hazards are always normal.. that's the clue!! So we can hack the denso for LEDs and not get the hyper flash. If the theory holds just need to add 2 diodes and 2 transistors into the denso: make it so signaling either left or right trips hazard line so all four corners are flashing. One diode from hazard input line to each signal input line should do this. And then also snub out the "other signal direction". So splice a NPN transistor into the low side of each relay (Collector to coil, Emitter to denso microcontroller line, and Base to the signal line of the opposite signaling direction.) Now, when you signal left or right, the hazards are actually tripping but only half of the car is allowed to blink. And when you do use the hazard button both sides of the car blink as normal because both signal lines are normally held high.. and diodes do their job by protecting current flowing the other way. Since the hazard circuit driver always makes nice normal blinks no matter what LEDs or light bulbs are plugged into the sockets... this should do the job. Scott now explain this to me in english and i can try it Link to comment Share on other sites More sharing options...
meier motor sports Posted June 17, 2006 Share Posted June 17, 2006 but then u cant see the led!! lol its getting dark now but maybe i can take a quick one during work tomorrow. Link to comment Share on other sites More sharing options...
scottmcphee Posted June 17, 2006 Share Posted June 17, 2006 now explain this to me in english and i can try it ya, if you're not an electronics guy this would confuse for sure, and best not to attempt yourself. but better yet, I'd do it for you if you mailed me a denso module. I'd test the idea out.. and send it back the electronics would be packed into the module, so when you get the done deal, you do a plug compatible swap out and return your original car part to the dealer for restocking.. just an idea ;-) Scott Link to comment Share on other sites More sharing options...
SuperhawkLGT Posted June 17, 2006 Share Posted June 17, 2006 ya, if you're not an electronics guy this would confuse for sure, and best not to attempt yourself. but better yet, I'd do it for you if you mailed me a denso module. I'd test the idea out.. and send it back the electronics would be packed into the module, so when you get the done deal, you do a plug compatible swap out and return your original car part to the dealer for restocking.. just an idea ;-) Scott I'm in for that, where do we get a second module and at what cost? Link to comment Share on other sites More sharing options...
scottmcphee Posted June 17, 2006 Share Posted June 17, 2006 I'm in for that, where do we get a second module and at what cost? Strictly a dealer part.. phone their parts department and and ask for a 05/06 Legacy "Turn Signal and Hazard module". Here they're about $65. Ask them if they take back new unused parts, and about any re-stocking fee for doing that. Tell them you are trying to diagnose a "blink problem" and all the bulbs seem to be in good order.. and you suspect it might be the module. Link to comment Share on other sites More sharing options...
SuperhawkLGT Posted June 17, 2006 Share Posted June 17, 2006 Um aren't those load resistors like $10 bux? Link to comment Share on other sites More sharing options...
meier motor sports Posted June 18, 2006 Share Posted June 18, 2006 most places wont take back used oarts Link to comment Share on other sites More sharing options...
Bun707 Posted June 18, 2006 Share Posted June 18, 2006 Wow, things are getting interesting on this topic... I've been crazy busy and haven't tried to mod the flasher yet. I think the LED modules that I found were a little brighter than the incandescents. Tonight I'll pop them in and take a video. The sedan's reflector design is slightly different and the blinker is red, not amber in the back. I'm not sure, but I think red LEDs are usually brighter than most other colors. I don't have an amber one for the front, but if looks like these ideas are workable, I might just order some this week. Link to comment Share on other sites More sharing options...
meier motor sports Posted June 18, 2006 Share Posted June 18, 2006 for any bulb you get make sure u get one desined for a reflector housing. it need to have leds pointing to the sides and rear if possible Link to comment Share on other sites More sharing options...
meier motor sports Posted June 18, 2006 Share Posted June 18, 2006 i once read some where that a white bulb in a red housing would make it look pink. but if u look at my video. the side marker on my wagon... is a white led and its one of the brightest ones but its 9leds faceing straight out in a tiny lil area Link to comment Share on other sites More sharing options...
Bun707 Posted June 19, 2006 Share Posted June 19, 2006 Almost everything I've read indicates not to use white in colored lenses. Probably best to pick a matching color. "White" leds often are a little more blue or purplish than would look good. Link to comment Share on other sites More sharing options...
Bun707 Posted June 19, 2006 Share Posted June 19, 2006 Here's my videos of comparing the LED to incandescent bulbs. It's tough to do the LED justice in these videos because it does look "dimmer" but in person, it really grabs your attention better. Arguably, I think it appears brighter in person. Both videos are at night... if somebody wants it in the day, I can get one of that too. Close up of bulbs: [ame=http://www.youtube.com/watch?v=gsJxMjhiY64]YouTube- Legacy GT LED Turn Signals[/ame] Furtherback: [ame=http://www.youtube.com/watch?v=MjQstVGOjWs]YouTube- LGT LED Turn Signals[/ame] Link to comment Share on other sites More sharing options...
meier motor sports Posted June 19, 2006 Share Posted June 19, 2006 for the tail lights i would say an ugly light like that would be better then what i got http://frickinbrite.com/catalog/product_info.php?cPath=28_66&products_id=133 Link to comment Share on other sites More sharing options...
scottmcphee Posted June 19, 2006 Share Posted June 19, 2006 Um aren't those load resistors like $10 bux? If you have confidence in hacking your own denso module, you already own it so it doesn't cost extra.. parts (2 x diodes and 2 x transistors) should be less than ten bucks. For me, all together it would be about 80 cents. One up-side of not using load resistors is that your LEDs for hazards would last a heck of a lot longer at the side of the road before your battery runs down.. Go all day.. and the next day.. and the next.. Load resistors mimic bulbs (no light but make heat) so battery won't last any different than bulbs.. Something to think about anyway.. Scott Link to comment Share on other sites More sharing options...
Bun707 Posted June 21, 2006 Share Posted June 21, 2006 Could have a break-through here... somebody prove me right or wrong. I think I found a pre-made, replacement signal module for LEDs that'll fit the LGT. Check out this page: http://www.superbrightleds.com/tail-brake-turn.html Look at "CF18-08". (I attached a screenshot of the datasheet with pin outs). Judging from Scott's pictures and wiring diagram for his tap turn mod, it looks like the pin out on this guy is identical. I still haven't pulled the module out of my car to know what it looks like firsthand; so does this thing look like it'll physically fit right in? It's only $12.95+$5 shipping, I'd be willing to "take one for the team" and try it out if it looks like it'd work. Link to comment Share on other sites More sharing options...
meier motor sports Posted June 21, 2006 Share Posted June 21, 2006 yeah i saw the one "for newer toyotas" this would be hella cool iff it worked Link to comment Share on other sites More sharing options...
subatwo Posted June 21, 2006 Author Share Posted June 21, 2006 oh man...that would be awesome if it is. it definitely save alot of time. maybe scott can chime in since he's pulled it out firsthand. Link to comment Share on other sites More sharing options...
Bun707 Posted June 21, 2006 Share Posted June 21, 2006 maybe scott can chime in since he's pulled it out firsthand. man... that just doesn't sound right. Link to comment Share on other sites More sharing options...
subatwo Posted June 21, 2006 Author Share Posted June 21, 2006 haha...i didn't even notice that...lol Link to comment Share on other sites More sharing options...
meier motor sports Posted June 21, 2006 Share Posted June 21, 2006 ok i jsut checked the service information. the pins are 100% correct..... but it seams to be reversed. but imthinking thats ok because.... the diagram is showing the module and the service information is shownig the plug... and if thats the case... WE HAVE A WINNAR!!! Link to comment Share on other sites More sharing options...
meier motor sports Posted June 21, 2006 Share Posted June 21, 2006 Check out this page: http://www.superbrightleds.com/tail-brake-turn.html It's only $12.95+$5 shipping, I'd be willing to "take one for the team" and try it out if it looks like it'd work. i cant find the "buy this damn item link" ill test it Link to comment Share on other sites More sharing options...
subatwo Posted June 21, 2006 Author Share Posted June 21, 2006 haha...i'm gonna buy it too. i'll probably buy other LED's in the process. Link to comment Share on other sites More sharing options...
meier motor sports Posted June 21, 2006 Share Posted June 21, 2006 haha...i'm gonna buy it too. i'll probably buy other LED's in the process. dont buy from super bright. there selection looks like crap. no reflector bulbs for our cars 7440/7443 and 3157 Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.