Barn Door Halogen to Tailgate LED Rear Lights - pinout

Littleblackflash

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I’m converting my van from barn doors to a tailgate which means I need to change my tail lights. This is how I changed mine to LED lights.

Removing the lights is simply 2 screws but the wiring plug is different. You don’t need to crimp or cut any wires to make the conversion.
Start my removing the wires from your existing plug. To do this you’ll need to slide the purple locking gate to enable the pins to be extracted.
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To remove the wires, you need a release tool which I didn’t have. I used a 2mm Allen key to release each tab. If you pull the wire lightly, you can feel when the tab is pressed in each side.
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You’ll need a new connector housing which you can get on eBay or places like here.
6 Way Vw/Bosch Male Connector (Large) | Automotive Connectors | Simtek (Uk) Ltd

Again, to get the wires in, you need to move the lock plate on the new connector.
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Note each plug has very small numbers showing the pin position.
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So simply remove all the wires from the old plug and insert them into the correct hole in the new plug. Slide the purple gate across to lock all the pins in. Connect it to your new light and test it.

Here is my pinning data for a 65plate T6 highine for the wire position on the old plug and the new one.


LH light

Old pos. colour. Function. New pos.

1 Black red brake light 6
2 Black white indicator new 3
3 Brown. earth 4
4 grey black side lights new 1
5 green:black reverse light 5
6 not used (fog light)
*If you connect pin 2 on the new plug to pin2 right hand light, the fog light would work on both sides.

Rh light

1 black red brake 1
2 black green indicator 4
3 brown earth 3
4 grey red side light. 6
5 green black reverse 5
6 Grey white Fog light 2


Job done. Time to clean van.

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Last edited:
Fantastic post, i have just bought LEDs and itching to change them over. This helps enormously.
 
I'm trying to do this now what do I connect the black and red wires to?
 
Mine was a little different, not sure if the original post has a typo. As mentioned before the halogen units have as single fog (RHS) and Reverse (LHS) so you need to run 2x additional cables above the headlong to connect both sides.

LH Light

1. Grey/Black - Side light
2. Connect to RH Pin 5 (Additional Cable)
3. Black/White - Indicator
4. Brown - Earth
5. Green/Black - Reverse
6. Black/Red - Brake

RH Light

1. Black/Red - Brake
2. Connect to LH Pin 5 (Additional Cable)
3. Brown - Earth
4. Black/Green - Indicator
5. Grey/White - Fog
6. Grey/Red - Side Light
 
has anybody had the bulb out warning on the dash after this mod from standard lights?
 
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