I can’t code USDM lights on my MK3. Can anyone help me?

[Bobbybuilder]

Hello guys, I’ve bought my first car a Seat Leon MK3 1.4 FR. After some time I wanted to do a few mods with the lights with light coding. I bought an OBD11, but Everytime that I try to enable USDM it says error. I’ve seen somewhere that I need to change the BCM. Has anyone done this in the past or if you guys know what I should do?

 

[SRGTD]

Hi @Bobbybuilder - I see from you’re from the UK from your country flag below your avatar and forum name. USDM (United States Domestic Market) setting that uses orange indicators as daytime running lights isn’t legal in the UK and that might be why you get an error when you try to enable USDM.

With USDM light setting, you might also get stopped by the police and you could get a fine, or at best an informal warning.

 

[andycalvia]

Hello guys, I’ve bought my first car a Seat Leon MK3 1.4 FR. After some time I wanted to do a few mods with the lights with light coding. I bought an OBD11, but Everytime that I try to enable USDM it says error. I’ve seen somewhere that I need to change the BCM. Has anyone done this in the past or if you guys know what I should do?

USDM setting won't be allowed as it would set the car up 'illegally' for use in the UK.

Orange DRL's and the change to the rear indicator which makes the tailgate and rear wing signals flash separately both look stupid anyway IMO

 

[SRGTD]

USDM setting won't be allowed as it would set the car up 'illegally' for use in the UK.

Orange DRL's and the change to the rear indicator which makes the tailgate and rear wing signals flash separately both look stupid anyway IMO

There are probably insurance implications too. Most - if not all - car insurance policies will include a clause that states the car must be maintained in a roadworthy condition. If changes have been made to the car that makes it illegal to use on UK roads, then technically it is likely to be considered unroadworthy and the insurance company could void the insurance cover. Additionally, driving an unroadworthy car on UK roads is a criminal offence.

 

[Craig.]

You haven't mentioned what year your car is or if it has LED or halogen headlights?

 

[Bobbybuilder]

You haven't mentioned what year your car is or if it has LED or halogen headlights?

Sorry for the late reply. 2015 LED headlights

 

[RiponM_27]

it isn't done by long coding helper it is done by adaptions.

First change left side

2/ Select Leuchte 0 BLK VL B36-Lichtfunktion C 0
3/ Change to Standlicht allgemein (Schlusslitch; Positionslicht; Begrenzungslicht) - Parking light in general (tail lamp, position light, marker light)
4/ Save with green tick and when asked enter security code 31347
5/ Select Dimmwert CD 0 and change to a number between 0 - 100 (100 being brightest) and tick green box
6/ Select Lichtfunktion E 0 and change to Blinken links Dunkelphase and tick green box
7/ Select Dimming Direction EF 0 and change to minimize and tick green box

Left side is not complete, go outside and look at your indicator.

Now on to the right side

8/ Select Leuchte1BLK VRB20
9/ Select Lichtfunktion C 1 and change to Standlicht allgemein (Schlusslitch; Positionslicht; Begrenzungslicht) - translation above
10/ Save the change using green tick and enter security code 31347 when asked.
11/ Select Dimmwert CD 1 and change to a number between 0 - 100 (100 being brightest) and tick green box
12/ Select Lichtfunktion E 0 and change to Blinken recths Dunkelphase and tick green box
13/ Dimming Direction EF 0 and change to minimize then tick green box to save change