notes for [VEMS Audi AAN] (with JPT/55 connector).
- See VemsAudiAan
- do NOT forget to create your page, see MembersPage
- this is very important when deviating from factory (VR/auditrigger) setup
- it is even more important if ordering inappropriate and changing from there (request "AAN ECU with HALL/HALL trigger" in the order comment when setup will be modified to HALL/HALL : without this, the ECU is made and tested for the factory VR/Auditrigger setup of course)
- even more important if ordered multiple ECUs with the wrong type (factory VR/auditrigger instead of requesting HALL / HALL)
- it is super-important if any complications appear (eg. no complete success with the first home-converted device).
For HALL / HALL sensor, a supply voltage is needed. +5V supply is included on JPT55/pin48..
- This was requested by customers applying custom solution: HALL / HALL trigger. Those who order HALL / HALL type (because using nonstandard trigger setup) usually know what they are doing.
- This way +5V can be easily made available for the HALL sensor (but care might be needed, to not plug in VR sensor, or short to GND)
- [paper] is included with HALL/HALL device that explicitely mentions this +5V
- this must be considered during install (before plugging in ECU and HALL sensors, measure that JPT55/pin48 is not shorted to GND, resistance must be >150 Ohm, and connectivity from JPT55 to sensor is as desired).
- [trigger_assembly.pdf leaflet] and [some v3.9AAN illustrations] might be helpful to get some idea about the differences of standard VR/auditrigger setup, and when "AAN ECU with HALL/HALL trigger" requested
- download latest version
v3.9 AAN HALL / HALL looks like :
The RQ13=0 Ohm (slanted) can be replaced by a small wire.
- The red wire at the bottom connects +5V to JPT55/pin48.
- red wire is not required if the JP22 is present and middle to bottom is shorted (the middle to bottom solderblob does the exact same thing; but JP22 is only available on v3 srl>10520).
Bottom side (of bare board, before customized to HALL / HALL), some trigger related components annotated:
In case of any problem (or suspected problem), follow
- [Tech request]
- eg. specify intent (eg. "I accidentally ordered the standard type with factory trigger, and want to convert device srl/... from oid/...) from ... to ...
- detail what modifications made (yes, step-by-step, even if repeating some docs)
- measurement results (eg at JPT55 and sensor pins)
- photo of result
- triggerlog (with annotation, eg. I think sectrig does not appear)
- for convenience, you can do it on this page for now. We'll clean it up later
If a conversion is not success, do NOT duplicate.
Conversion notes, measurements, photos ... add your notes...
[photos from customer, with partial conversion] - important areas highlighted
Since than:
- R30=4k7 (assumed to be applied, please confirm)
- remove SJ7 (done on the photo)
- remove R248 - remove some hotmelt to access
- install R48
- ... anything else done ? measured ?
Note:
- v3=10585 originally only this was mentioned to be converted
- although not reported any other device serialnr, suspected that v3=10505 and v3=10519 also attempted ?
- these (AAN with srl less than 10520) might not have JP22