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-   Discovery II (https://landroverforums.com/forum/discovery-ii-18/)
-   -   Daytime running lights (https://landroverforums.com/forum/discovery-ii-18/daytime-running-lights-59225/)

Steve517 05-21-2013 09:57 AM

Thanks Jafir.

The existence of the relay is probably a safe assumption, but I'll check before going further. Getting the BCU programmed, short of driving 200 miles to the nearest dealer, is another issue. Based on the price of gas around here, buying the proper equipment might be cheaper and more useful in the long run.

acg 11-25-2013 11:11 PM

I have just turned on Daytime Running Lights on my 2003 Disco.

A relay (with the green strip) is needed. I then used my Nanocom unit to program the BCU to turn on the option.

2001 beach 11-26-2013 05:50 AM

I did this on my 2001 d2 by adding a 6v resistor behind the left head lamp, cost is less than <200 and it is pretty much plug and play with LR parts.

gbob 11-26-2013 08:44 AM

I have fog lights on my 03 disco, so I flip the parking lights on and press the rocker switch for my disco to turn on my for light. And should I forget to turn the parking light switch back to the off position after I turn off the ignition, there is a chime that engages informing me that I left something in the "on" position and more times than not, I left my parking lights on.

expedio2005 11-26-2013 12:40 PM


Originally Posted by acg (Post 432301)
I have just turned on Daytime Running Lights on my 2003 Disco.

A relay (with the green strip) is needed. I then used my Nanocom unit to program the BCU to turn on the option.

Where did you get the relay? How much? I just bought my Nanocom and enabled it to no effect.

jafir 11-26-2013 12:43 PM


Originally Posted by expedio2005 (Post 432364)
Where did you get the relay? How much? I just bought my Nanocom and enabled it to no effect.

The relay is differen for 99-02 and 03-04, depending on the fuse box installed.

I've only been able to find them at land rover dealers or specialty places. I had to buy one of the black with green stripe to enable fog lights on my 2003.

acg 11-27-2013 12:42 AM


Originally Posted by expedio2005 (Post 432364)
Where did you get the relay? How much? I just bought my Nanocom and enabled it to no effect.

I got my relay from a scrapped 2004 Disco at the junkyard.

SanduPanus 09-22-2017 01:31 PM

I just turned the DRL settings ON using the Nanocom on my 2001 D2.
I checked the both headlamps, and I did not find there any resistors... Under the dash, the relays are all in their places.

After turning the settings in Nanocom ON, and saving, the lights are turning on just few seconds after engine starts

can someone show how the resistor looks like? is it possible that DRL work without it? Or it may be installed somewhere else by the manufacturer?

number9 09-22-2017 07:28 PM

From the D2 Electrical Library:

Daylight Running Lamps Supply
The feed from fuse 13 in the engine compartment fusebox is connected to the coil of the
daylight running relay and the IDM integral with the passenger compartment fusebox.
When the engine is started, the IDM senses, through internal circuitry, that the engine is
running and provides an earth for the daylight running relay coil. The energised coil closes
the contacts of the daylight running relay allowing the feed from fuse 5 in the passenger
compartment fusebox to pass through the relay contacts.
Daylight Running Lamps Operation
Canadian vehicles
The feed from the daylight running relay contacts flows from the passenger compartment
fusebox and is connected to a 0.75 Ohm in-line resistor on an RU wire. The feed from the
in-line resistor is reduced to 6.7 V and reconnected to the passenger compartment fusebox
on a UY wire. The feed is connected to fuses 3 and 22 in the passenger compartment
fusebox, where it operates both headlamp main beam bulbs at reduced power.
Looks like the resistor is just to reduce power to lights to prolong lamp life.
......

Tomzsix 09-22-2017 07:34 PM

I believe the lights that everyone is discussing would be called "city lights". They are used on other British vehicles. They are dim so as to drive around the city after dark. They are on the new mini's. They are kinda cool at dusk, too


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