jwatte
Posts: 132
Joined: Wed May 25, 2011 5:44 pm
Delivery Date: 14 Jul 2011

Software mod to turn on DRLs?

Sat Dec 31, 2011 11:15 pm

I really like DRLs (they save lives, and have been required since 1980 in some European countries...)
I know I can cover up the daylight sensor to get Auto lights to come on, but that has two potential problems:
1) it turns the nav system to "night" mode
2) it may change the behavior of the climate control (if it uses that sensor to gauge sun heat gain)

Given that the Leaf is sold in many European countries, clearly it has to support DRLs, and I think we can all agree that this "should" only be a software mod.
So... has anyone figured out how to make that mod yet? Is there some simple config that can be set over the CAN bus or something? A DIP switch on a circuit board somewhere? A SPI interface to re-program some microcontroller?

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garygid
Gold Member
Posts: 12469
Joined: Wed Apr 21, 2010 8:10 am
Delivery Date: 29 Mar 2011
Leaf Number: 000855
Location: Laguna Hills, Orange Co, CA

Re: Software mod to turn on DRLs?

Sat Dec 31, 2011 11:27 pm

Just turn the headlights ON and leave them ON?

Don't they go auto-off after the LEAF is turned OFF?
See SOC/GID-Meter and CAN-Do Info
2010 Prius
2011 LEAF, 2014 Tesla S85
2018 & 2019 Tesla Model 3
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jwatte
Posts: 132
Joined: Wed May 25, 2011 5:44 pm
Delivery Date: 14 Jul 2011

Re: Software mod to turn on DRLs?

Sat Dec 31, 2011 11:47 pm

garygid wrote:Don't they go auto-off after the LEAF is turned OFF?
That would be smart, wouldn't it?

But, no. The car just beeps when you do that. Loudly.

User avatar
Nekota
Posts: 616
Joined: Sat Dec 11, 2010 11:16 pm
Delivery Date: 12 May 2011
Leaf Number: 2182
Location: Sunnyvale, CA

Re: Software mod to turn on DRLs?

Sun Jan 01, 2012 1:59 am

jwatte wrote:
garygid wrote:Don't they go auto-off after the LEAF is turned OFF?
That would be smart, wouldn't it?

But, no. The car just beeps when you do that. Loudly.
I set my headlights to run during daytime using the light sensitivity settings and programming the headlights to shut off after 45 secs to provide some light for plugging in after dark. See Nav Manual page 6-4 "Viewing technical information"

I don't know how to turn off the beeps but they don't beep for long - 6 times I think?

Code: Select all

COMFORT & CONVENIENCE SETTINGS
This key does not appear on the display until the
power switch is pushed to the "ON" position.
1. Push the MENU button and touch [Settings].
2. Touch [Comfort & Convenience].
3. Touch the item you would like to set.
Available settings
. [Auto Interior Illumination]:
When this item is turned on, the interior
lights will illuminate if any door is unlocked.
. [Speed Sensing Wiper Interval]:
When this item is turned to ON, the wiper
interval is adjusted automatically according
to the vehicle speed.
. [Light Sensitivity]:
Adjust the sensitivity of the automatic headlight
by touching [+] or [-].
. [Light Off Delay]:
Select the duration of the automatic headlight
off timer from 0, 30, 45, 60, 90, 120,
150 and 180 second periods.
Res 20Apr2010 / Ordered 27Sep2010 / Delivered 12May2011

PV System

qcar
Posts: 63
Joined: Tue Jan 25, 2011 11:33 am

Re: Software mod to turn on DRLs?

Wed Jan 04, 2012 3:56 pm

I have a little stuffed bean bag sea turtle that sits on my dashboard right over the auto light sensor. Works great.

jwatte
Posts: 132
Joined: Wed May 25, 2011 5:44 pm
Delivery Date: 14 Jul 2011

Re: Software mod to turn on DRLs?

Wed Jan 04, 2012 4:44 pm

qcar wrote:I have a little stuffed bean bag sea turtle that sits on my dashboard right over the auto light sensor. Works great.
So, again -- aren't there other things that use that sensor? Like the climate control, or nav system map background, or interior lighting?

Can anyone with a service manual figure out how to re-program it to just use the European rules? :-)

User avatar
TomT
Posts: 10650
Joined: Sun Aug 08, 2010 12:09 pm
Delivery Date: 01 Mar 2011
Leaf Number: 000360
Location: California, now Georgia
Contact: Website

Re: Software mod to turn on DRLs?

Wed Jan 04, 2012 5:00 pm

Right next to it is a solar sensor that the CC uses so, ideally, you'd want to block the light sensor but not the solar sensor...

And no, the lighting control module can not easily be reprogrammed.
jwatte wrote:So, again -- aren't there other things that use that sensor? Like the climate control, or nav system map background, or interior lighting?
Leaf SL 2011 to 2016, Volt Premier 2016 to 2019, and now:
2019 Tesla Model 3; LR, RWD, FSD, 19" Sport Wheels, silver/black; built 3/17/19, delivered 3/29/19.

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