Eggroller
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Joined: Sat Jan 28, 2017 10:21 pm
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Re: Nissan LEAF Light Bulb Mods: LEDs Anyone?

Sun May 28, 2017 10:07 pm

Anyone install LED bulbs for the signals? Do I need resistors for every corner (4)? Or could I just install a set of 2 for the left and right side?
Ray
2013 SV | LED / Quick charge | Premium

nerys
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Leaf Number: 020441

Re: Nissan LEAF Light Bulb Mods: LEDs Anyone?

Mon May 29, 2017 10:47 pm

here is a question I have regarding load resistors.

do they have to be on all the time?

for example. I engage the turn signal. the lamps illuminate. if the load is too low (such as if a bulb is out) it hyper flashes.

now. what happens NEXT?

I am pulling numbers out of my butt here but bear with me. lets say it needs to see 20 watts per bulb. so 40 watts per side (front and rear turn signal)

If I put 2 LED's in it might only use 5 watts. so I need to add X watts load balancer lets say 35 watts to bring it back to 40.

now. lets say the light is illuminated for 1 second.

do I have to consume 40 watts for 1 second or would consuming 40watts for say .05 seconds be enough to trigger the ok all good flash normally then disengage the load balance and just have the LED connected?

when it goes off and comes back on do the same thing?

IE what about a chip that engages the load balancer for a fraction of a second long enough (if possible) to avoid triggering the hyper flash error out.

this way I will still get 90 to 95% of the energy savings of using an LED bulb over the incan.

this is a shiggles option. IE for the fun of it.

possible? anyone familiar enough with these systems to know?
2012 SV 4802miles. 1month 2400 miles. 9 weeks 5000 miles. 6 months 13,300 miles. 4/18 15,000 miles.

aarond12
Posts: 365
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Leaf Number: 311353
Location: Dallas, TX

Re: Nissan LEAF Light Bulb Mods: LEDs Anyone?

Tue May 30, 2017 6:55 am

Eggroller wrote:Anyone install LED bulbs for the signals? Do I need resistors for every corner (4)? Or could I just install a set of 2 for the left and right side?

You need resistors for all four corners. I have LEDs all around. What irritates me is that they flash at the correct speed with the hazard lights and no resistors. The turn signals, however, require the resistors to flash at the correct speed. :evil:
2012 Mitsubishi i-MiEV ES (lease ended) • 2015 Nissan LEAF S • Tesla Model 3 reserved
Mods: Matte black Juke wheels, LED headlights and accessory lights, horn, CarPlay receiver

chivalryx
Posts: 36
Joined: Mon Jul 04, 2016 3:38 pm
Delivery Date: 04 Jul 2016
Location: Coquitlam, BC

Re: Nissan LEAF Light Bulb Mods: LEDs Anyone?

Fri Aug 25, 2017 7:22 pm

The resistors aren't in use when the turn lights aren't flashing. They only trick the car into thinking there's a higher draw when you use the turn signals. In parking light mode, the resistors aren't used. I use dual colour bulbs in mine, white when the low beams are on, amber when turning. When on white, the resistors are cold to the touch (i.e. not used). They're very hot when the turn signal is on for more than a minute. The power consumption isn't significant.

The only annoyance is the housings have the bulbs pointing upwards for some reason, instead of parallel to the ground. So my whites aim into the sky :/

Chiv.

nerys wrote:here is a question I have regarding load resistors.

do they have to be on all the time?

for example. I engage the turn signal. the lamps illuminate. if the load is too low (such as if a bulb is out) it hyper flashes.

now. what happens NEXT?

I am pulling numbers out of my butt here but bear with me. lets say it needs to see 20 watts per bulb. so 40 watts per side (front and rear turn signal)

If I put 2 LED's in it might only use 5 watts. so I need to add X watts load balancer lets say 35 watts to bring it back to 40.

now. lets say the light is illuminated for 1 second.

do I have to consume 40 watts for 1 second or would consuming 40watts for say .05 seconds be enough to trigger the ok all good flash normally then disengage the load balance and just have the LED connected?

when it goes off and comes back on do the same thing?

IE what about a chip that engages the load balancer for a fraction of a second long enough (if possible) to avoid triggering the hyper flash error out.

this way I will still get 90 to 95% of the energy savings of using an LED bulb over the incan.

this is a shiggles option. IE for the fun of it.

possible? anyone familiar enough with these systems to know?
Last edited by chivalryx on Fri Aug 25, 2017 7:25 pm, edited 1 time in total.
2013 White Pearl SV (No quick charge)
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12V 20Ah Prismatic LiFeMnPO4 Lead Acid replacement
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chivalryx
Posts: 36
Joined: Mon Jul 04, 2016 3:38 pm
Delivery Date: 04 Jul 2016
Location: Coquitlam, BC

Re: Nissan LEAF Light Bulb Mods: LEDs Anyone?

Fri Aug 25, 2017 7:23 pm

You only need resistors on the turn bulbs you switch over. So if you only do the front bulbs, you only need 2. If you do the rears, you need 4.

Chiv.

Eggroller wrote:Anyone install LED bulbs for the signals? Do I need resistors for every corner (4)? Or could I just install a set of 2 for the left and right side?
2013 White Pearl SV (No quick charge)
Weathertech custom floormats
Aftermarket LED Headlight upgrade (45W 4800 lumen/bulb)
12V 20Ah Prismatic LiFeMnPO4 Lead Acid replacement
Aftermarket Rear Backup Camera wired to NAV

nerys
Posts: 685
Joined: Tue Sep 09, 2014 10:11 pm
Delivery Date: 09 Sep 2014
Leaf Number: 020441

Re: Nissan LEAF Light Bulb Mods: LEDs Anyone?

Fri Aug 25, 2017 8:18 pm

the power consumption is actually quite significant. its 27watts per bulb (for 1157's for example)

for 4 of them that is 108 watts. 4 led's are 2 watts. if that. maybe 10 if you use the really crazy bright ones. (total not each)

the resistors would take it back up around 100 watts.

now the question is this. I am going to make up some numbers for numbers sake.

lets say the bulb flashes every 2 seconds. 1 second on 1 second off.

if I turn on the load resistor for .1 seconds and then have it OFF for the last .9 seconds that the bulb is illuminated. is that enough to trick the system to flash normally? IE do I have to draw 27watts for the full seconds or just "initially" if only initially how long?

if yes and for a short time. what might be the process to design such a circuit to do that?
2012 SV 4802miles. 1month 2400 miles. 9 weeks 5000 miles. 6 months 13,300 miles. 4/18 15,000 miles.

NeilBlanchard
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Joined: Sat Oct 11, 2014 5:02 pm
Delivery Date: 14 Oct 2014
Leaf Number: 306278

Re: Nissan LEAF Light Bulb Mods: LEDs Anyone?

Mon Aug 28, 2017 10:23 am

You should be able to replace the relay to avoid the hyper flashing.

estomax
Posts: 94
Joined: Fri Jan 20, 2017 9:23 pm
Delivery Date: 21 Jan 2017
Location: Seattle

Re: Nissan LEAF Light Bulb Mods: LEDs Anyone?

Mon Aug 28, 2017 1:31 pm

has anyone found reverse LEDs that put out more light than the stock incandescent 921 bulbs ? all the ones ive tried so far have been inferior to stock.

Marko
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Supersleeper
Posts: 77
Joined: Mon Aug 07, 2017 10:04 am
Delivery Date: 06 Aug 2017
Location: SF Bay Area

Re: Nissan LEAF Light Bulb Mods: LEDs Anyone?

Tue Aug 29, 2017 8:58 pm

nerys wrote:if I turn on the load resistor for .1 seconds and then have it OFF for the last .9 seconds that the bulb is illuminated. is that enough to trick the system to flash normally? IE do I have to draw 27watts for the full seconds or just "initially" if only initially how long?


This is a very valid question, and I’m willing to bet it’s not doing the bulb check 100% of the time. You may be able to fool it with a simple arduino, a mosfet and load resistor. When the arduino detects current, it can leave the load resistor on by means of the mosfet gate for whatever time frame fools the computer, then shut down. I think the only way to discover this is by actually experimenting with it. I’ve got some load resistors on order, and an arduino.

I may just have to try this myself. I think I may try this by wiring the load resistor as normal, then experiment with manually switching it off and on.

estomax
Posts: 94
Joined: Fri Jan 20, 2017 9:23 pm
Delivery Date: 21 Jan 2017
Location: Seattle

Re: Nissan LEAF Light Bulb Mods: LEDs Anyone?

Tue Sep 05, 2017 8:15 am

is the flasher relay on this car a discrete component or part of the cars central control system? might be able to change the load it is looking for in the Canbus if it is the latter, or modify the relay like on older cars if it is the former. who has time to dig into it? :)

Marko
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