Panda Eyes flame magnet Gold Donating Members 5,674 Member For: 16y 9m 12d Gender: Male Location: adelaide hills- 'race air' central Posted 20/12/16 09:31 PM Share Posted 20/12/16 09:31 PM hi all on searching the forums re cruise control not working it would appear the cruise control on a b series wont engage if there are led brake lights installed. would anyone know or be able to work out if a resistor could be put inline to give the correct signals for the cruise? cheers Link to comment Share on other sites More sharing options...
Pixy Angel Expert Donating Members 9,132 Member For: 20y 2d Gender: Male Location: North Jamberoo, NSW Posted 20/12/16 09:42 PM Share Posted 20/12/16 09:42 PM that's just BS. Im no electronic person but would by passing it and adding a relay work? Link to comment Share on other sites More sharing options...
skidxr6t skids Donating Members 2,754 Member For: 12y 2m Gender: Not Telling Posted 20/12/16 10:21 PM Share Posted 20/12/16 10:21 PM I believe this is true, you need a resistor so the car thinks its turning on a standard globe. However, I thought it mattered more if you switched the indicators for LED's (otherwise they'll flash too fast). Link to comment Share on other sites More sharing options...
k31th less WHY; more WOT Site Developer 29,269 Member For: 16y 10m 19d Gender: Male Location: Melbourne Posted 20/12/16 10:42 PM Share Posted 20/12/16 10:42 PM This is all true and I've done some extensive searching on this topic to discover this (with some first hand experience from @yenchy). This thread does a good job of explaining it, but doesn't have a great solution (wiring globes in-line). For the lights in the rear light assembly: Brake/Tail-light LED's stop cruise control from working (and possibly even ABS). Reverse-light LED's are on 24/7 (quite dim), even when you don't want them to be. Indicator-light LED's make the entire indicator circuit to "blink" faster. (not entirely a bad thing ) yenchy put his globes in (he can link them, as I don't know which ones specifically he's using) and putting a 5-ohm resistor in-line didn't fix the cruise control problem. yenchy and I measured the resistance of the stock globes (and read off the power ratings)... Tail/Brake 2.3 ohm & 0.5ohm 5W & 21W Reverse 1 ohm 21W Indicator 0.5 ohm 21W The LED resistance is practically zero in comparison yenchy might provide the resistance of his LED's I think the problem with the cruise is that when an incandescent bulb lights up, the resistance spikes briefly as the filament quickly heats up, so an in-line resistor may not solve that problem... The amount of engineering to get these incandescent bulbs to work with these systems is astounding... all it does is cause problems for LED's... Link to comment Share on other sites More sharing options...
ML24 Member 33 Member For: 8y 4m 8d Posted 21/12/16 01:30 AM Share Posted 21/12/16 01:30 AM 2 hours ago, k31th said: Reverse-light LED's are on 24/7 (quite dim), even when you don't want them to be. I have noticed this in my FG. Is it a big issue at all? Apart from aesthetics? Might go back to standard, that sh*t will annoy me.... Link to comment Share on other sites More sharing options...
k31th less WHY; more WOT Site Developer 29,269 Member For: 16y 10m 19d Gender: Male Location: Melbourne Posted 21/12/16 01:56 AM Share Posted 21/12/16 01:56 AM aesthetics and possibly legality? Link to comment Share on other sites More sharing options...
ML24 Member 33 Member For: 8y 4m 8d Posted 21/12/16 03:34 AM Share Posted 21/12/16 03:34 AM Possibly, would have to check. Link to comment Share on other sites More sharing options...
Panda Eyes flame magnet Gold Donating Members 5,674 Member For: 16y 9m 12d Gender: Male Location: adelaide hills- 'race air' central Posted 21/12/16 06:09 AM Author Share Posted 21/12/16 06:09 AM I have standard reverse globes so no probs there. led indicator globes did blink fast until I put the cheapy eBay 6 ohm resistors in. now they're fine. I did consider wiring standard brake bulbs back in and leaving them behind the side boot carpet. Link to comment Share on other sites More sharing options...
discostig Manual mode ________________________ All day, erryday Donating Members 13,798 Member For: 17y 3m 4d Gender: Male Location: Probably above atmospheric pressure Posted 21/12/16 06:34 AM Share Posted 21/12/16 06:34 AM Nice thinking. Leaving them wired in but not visible is the sort of solution I'd probably end up with. Just make sure they can't light anything on fire as they do get hot! 2 Link to comment Share on other sites More sharing options...
Panda Eyes flame magnet Gold Donating Members 5,674 Member For: 16y 9m 12d Gender: Male Location: adelaide hills- 'race air' central Posted 21/12/16 08:04 AM Author Share Posted 21/12/16 08:04 AM fair call mate. Link to comment Share on other sites More sharing options...
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