Drewpul
Passed Driver's Ed
- Location
- Glen Ellyn, IL
- Car(s)
- Golf Sportwagen TDI
Hey everyone,
I just completed the rear fog light mod on my NAR 2015 Golf Sportwagen S.
I fully pulled out the BCM and started studying what other pins were on the module to see what other modifications I could do with this current BCM. I cross referenced the Golf wiring diagram.
I have a Lowline BCM, so there are plenty of blank pin spots for things like heated seats that would only be in a highline BCM.
Here's what I found interesting through. I found several pins on my lowline BCM that were not defined in the wiring diagram.
I assume these are used for functions on other MQB platform vehicles? What are these for?
Here's my BCM:
And here's the chart from the wiring diagram showing each pin. I put a note to the left of the number of each pin.
Legend:
NO = My lowline BCM has a blank spot in this position
Dot = My lowline BCM HAS the pin. I already have this functionality most likely to my knowledge
Dot with arrow = My lowline BCM has the pin, and I know I don't have the feature (yet). E.g. B28 Washer Fluid tank sensor
Dot with Question Mark = I have a pin on the lowline BCM, but the wiring diagram does not define what this is. There are about 9 pins like this. E.g. C19
I bet @Cuzoe or @DV52 may know the answer to this. (Also unrelated to BCM, next retrofit will finally be my Soundaktor. Thanks again Cuzoe for the tutorial last year. My VAS5054 is on its way)
I just completed the rear fog light mod on my NAR 2015 Golf Sportwagen S.
I fully pulled out the BCM and started studying what other pins were on the module to see what other modifications I could do with this current BCM. I cross referenced the Golf wiring diagram.
I have a Lowline BCM, so there are plenty of blank pin spots for things like heated seats that would only be in a highline BCM.
Here's what I found interesting through. I found several pins on my lowline BCM that were not defined in the wiring diagram.

Here's my BCM:
And here's the chart from the wiring diagram showing each pin. I put a note to the left of the number of each pin.
Legend:
NO = My lowline BCM has a blank spot in this position
Dot = My lowline BCM HAS the pin. I already have this functionality most likely to my knowledge
Dot with arrow = My lowline BCM has the pin, and I know I don't have the feature (yet). E.g. B28 Washer Fluid tank sensor
Dot with Question Mark = I have a pin on the lowline BCM, but the wiring diagram does not define what this is. There are about 9 pins like this. E.g. C19
I bet @Cuzoe or @DV52 may know the answer to this. (Also unrelated to BCM, next retrofit will finally be my Soundaktor. Thanks again Cuzoe for the tutorial last year. My VAS5054 is on its way)