So I'm preparing(researching) for a OEM LED headlights retrofit on a 2019 NAR MQB Tiguan. I have majority of my researched finished but have few remaining questions. As usually, I will post the whole procedure when I'm done. I'm not here just to ask and leave. I always share, provide DYI if I can
Anyway, I'm only planning to retrofit LED headlights, control module and suspension level sensor(this is a FWD so I only need rear sensor). I'm not doing windshield camera as that requires new windshield and dealer level tools to calibrate.
I'm currently stumbled on the G76 rear suspension sensor wiring. The VW wiring diagram(got from erwin.com in April 2019) shows that G76 rear sensor is connected to the J250 module. But the NAR Tiguan was never equipped with an adaptive suspension! Or at least until to this day
I am using this scan from a fully loaded NAR Tigaun as a reference.
https://forums.ross-tech.com/showthread.php?18164-2019-Tiguan-(SEL-Premium)-2-0L-DGUA
I found that very strange and decided to look into other MQB vehicles. I noticed that NAR Arteon wiring diagram indeed showed two alternative diagrams for the G76 sensor. G76 connected to J250 module if car is equipped with adaptive suspension and G76 connected to the J519 BCM for cars without adaptive suspension. This is exactly what I was expecting and thus I'm concluding that Erwin diagram is simply missing this alternative connection for Tiguan. Can anyone confirm that NAR Tiguan G76 sensor is wired into the J519 just as Arteon? For Arteon the connection is as follow:
G76 Pin1 -> J519 73a/23
G76 Pin3 -> J519 73a/22
G76 Pin4 -> J519 73b/57
I also cross referenced CAN Gateway, BCM and Adaptive Headlight Module part numbers between Tiguan and Arteon. They match exactly! This is making me hopeful
My another alternative is to pay for another subscription and see if VW added this circuit into their diagrams. I noticed that they now advertise 08.2019 wiring revision for Tiguan. I have 04.2019, but I would hate to pay just to check.
For the coding I think it should be doable with VCDS only as long as I get used modules from Tiguan. Here is what I'm thinking from the high level overview:
- Add both headlights and adaptive headlight modules in 19-Gateway list
- Change J519 channel adaptations based on this Tiguan scan
- And possibly something in 17 instrument cluster. Both that stuff might be related to windshield camera features which I don't have.
Is there anything else that I'm missing, any gotchas ? Thank you
I read this thread, it was useful
Anyway, I'm only planning to retrofit LED headlights, control module and suspension level sensor(this is a FWD so I only need rear sensor). I'm not doing windshield camera as that requires new windshield and dealer level tools to calibrate.
I'm currently stumbled on the G76 rear suspension sensor wiring. The VW wiring diagram(got from erwin.com in April 2019) shows that G76 rear sensor is connected to the J250 module. But the NAR Tiguan was never equipped with an adaptive suspension! Or at least until to this day
I am using this scan from a fully loaded NAR Tigaun as a reference.
https://forums.ross-tech.com/showthread.php?18164-2019-Tiguan-(SEL-Premium)-2-0L-DGUA
I found that very strange and decided to look into other MQB vehicles. I noticed that NAR Arteon wiring diagram indeed showed two alternative diagrams for the G76 sensor. G76 connected to J250 module if car is equipped with adaptive suspension and G76 connected to the J519 BCM for cars without adaptive suspension. This is exactly what I was expecting and thus I'm concluding that Erwin diagram is simply missing this alternative connection for Tiguan. Can anyone confirm that NAR Tiguan G76 sensor is wired into the J519 just as Arteon? For Arteon the connection is as follow:
G76 Pin1 -> J519 73a/23
G76 Pin3 -> J519 73a/22
G76 Pin4 -> J519 73b/57
I also cross referenced CAN Gateway, BCM and Adaptive Headlight Module part numbers between Tiguan and Arteon. They match exactly! This is making me hopeful
My another alternative is to pay for another subscription and see if VW added this circuit into their diagrams. I noticed that they now advertise 08.2019 wiring revision for Tiguan. I have 04.2019, but I would hate to pay just to check.
For the coding I think it should be doable with VCDS only as long as I get used modules from Tiguan. Here is what I'm thinking from the high level overview:
- Add both headlights and adaptive headlight modules in 19-Gateway list
- Change J519 channel adaptations based on this Tiguan scan
- And possibly something in 17 instrument cluster. Both that stuff might be related to windshield camera features which I don't have.
Is there anything else that I'm missing, any gotchas ? Thank you
I read this thread, it was useful
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