No, bottom left is pin 25.
Pin 25 is the ignition coil trigger from it's driver transistor.
That check mark for the middle pin of the transistor appears to show
that your bad solder joint is for the pin 25 signal as hoped.

Mark

Alistair Bell wrote:
> Ok, did that.
>
> And apologies for the confusing way I noted results.
>
> The board tested in orientation shown, the red tape and black marks
>  refer to the pin orientation and results.
>
> From pin mark outwards, too and bottom, check mark means continuity,
> check plus asterisk means brief continuity. Dash mark means no continuity.
>
> Started with transistor leg on right. Marks on tape closest to pin
> marks. Working ext was middle leg, and finally left leg.
>
> I think, if I’ve rotated things in my head correctly, the pin marks are
> too left 13, top right 1
> Bottom left 14 , bottom right 25
>
> If that’s right, nine of your suggested pins have continuity to any of
> the legs of the trans.
>
> https://shufti.files.wordpress.com/2020/03/3e721a30-3d1c-42e2-9f2a-192eb14ad5a1.jpeg
>
>
> The transistor as I measured, right leg first, then middle then left
>
> https://shufti.files.wordpress.com/2020/03/cb7b8634-ac9f-4345-b857-3a8a061a9e54.jpeg
>
>
> Ab
>
>
>
>
>> On Mar 31, 2020, at 4:17 PM, vw_van_fan_Mark <madvws@cox.net> wrote:
>>
>> For fun you could use an Ohm meter to see if that transistor connects
>> to the ECU pin that drives the ignition coil.
>> Put a meter probe on each of the three legs in turn and test the ECU
>> pin(s) with the other probe.
>>
>> I would look at ECU pins 25, 12 3
>> to see if any leg of that transistor connects to any of those pins.
>>
>> The driver transistor for the fuel injectors is the one I'm used to
>> seeing a bad connector at.
>>
>> Mark
>>
>> Alistair Bell wrote:
>>> That black component that had the one leg solder joint broken is BUV37B
>>>
>>> Looked up and it’s , if I read it right, a power transistor.
>>>
>>> Alistair
>>>
>>>>>