LED Backup and Turn signal Bulbs

[Skynet]

I think it should work--but before splicing into any existing wire, I'd recommend testing the wire at the connector (body control module for the turn signals, rear hatch connector for the brake signal) for the proper function with an automotive circuit tester (basically a 12V logic probe). I know I had about 3 wires--all with the same colour code--on the rear connector for the 'high' brake line--only one of the was the actual brake circuit. I also replaced the side repeater turn signals with LED units to help reduce the electrical load of adding the rear turn signal LED's to the front turn signal circuit.

Regarding the rear high brake wire, will that single wire service both left and right rear brake lights? I know the front has 2 separate wires, but not the rear. Also, where are the resistors installed along the line?

 

[Anaduff]

[Again--my car is a 2019] The brake lamps (actually LEDS) on the European tail light modules draw 370mA each, so there is about 700mA added to the high brake light circuit (both modules added to the existing brake wire). So far (about 1.5 years now) nothing has failed. The Euro modules come with an amber bulb (a real bulb! [7407]) installed as opposed to the US version which uses a clear W21W bulb--both of these bulbs draw about 1.8A. I replaced the 7404 with a PY21W (also amber--the lens cover on the Euro units is clear so you have to use a coloured replacement). The 2x 8 ohm/50W resistors are installed between the original rear turn signal wires (R & L) and chassis ground so that the car doesn't know the original bulbs went missing.

 

[Skynet]

[Again--my car is a 2019] The brake lamps (actually LEDS) on the European tail light modules draw 370mA each, so there is about 700mA added to the high brake light circuit (both modules added to the existing brake wire). So far (about 1.5 years now) nothing has failed. The Euro modules come with an amber bulb (a real bulb! [7407]) installed as opposed to the US version which uses a clear W21W bulb--both of these bulbs draw about 1.8A. I replaced the 7404 with a PY21W (also amber--the lens cover on the Euro units is clear so you have to use a coloured replacement). The 2x 8 ohm/50W resistors are installed between the original rear turn signal wires (R & L) and chassis ground so that the car doesn't know the original bulbs went missing.

Thanks. I'll give that a try. I'm waiting on my euro outer tails for the X to arrive but want to go ahead and test the wiring out.

 

[Anaduff]

Many posts ago in this thread (#28 to be exact), I mentioned that there were two different sets of tail lamp modules depending on whether your car has halogen or LED head lamps--in spite of both tail lamps using a regular bulb for the turn signal. Based upon the 2019 Magnet Marelli catalogue provided by @Jack GS, we now know why. Both the Regal's & the Opel/Vauxhall's that are equipped with the LED headlights can do a 'headlight dance' for a welcome/goodbye show--the Opel/Vauxhall's will do the same from the back--something (else) that the Regal's lost in importation.

The upshot of all this is; if you want to order the European tail lamps to get seperate brake & turn signals, you probably want to order the 'halogen' units, which are part numbers:

39125832 (right) and 39125831 (left) for the Sportback, or
39099113 (right) and 39099112 (left) for the Tour-X

If you're adventurous (or a glutton for punishment--it's a fine line), the modules WITH the 'welcome/goodbye' features are:

39125836 (right) and 39125835 (left) for the Sportback, or
39099123 (right) and 39099122 (left) for the Tour-X.

Oh yes, since the sequential tail lamp effect will run across both the inboard & outboard modules, you'll need to order the inboard 'welcome' units as well...