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Title: Cant write on older me7.5 ecu Post by: aef on July 16, 2019, 03:11:55 PM Hi,
i have a strange 8L0906108N APY ecu here. I were unable to write to the ecu via obd on the bench so i had to boot. I did immo off aswell while ecu was open and ready2boot. attached files are on the ecu when things happen like described. mpps18 repeatedly shows switching to high speed :-\ mpps12-16 shows block transfer message correctly received nefmoto shows: Quote Validated FTDI device is in dumb mode. Disconnected Connecting... Starting fast init connection. Connecting to address 0x01. Fast init sent, sending start communication request. Switching to KWP2000 session. Connected Fast writing premium feature NOT enabled. Disabling Windows sleep mode. Writing ECU flash memory. ECU reports programming session preconditions have been met. Negotiating communication timings. Successfully changed to new communication timings. Requesting security access. ECU reports that security access is not supported. Starting diagnostic session. Disconnecting because no response was received for the Tester Present message. Disconnected Writing ECU flash memory failed. 100% complete. Restoring Windows sleep mode. i did try to change the voltage but nothing happened. older mpps sometimes prompted "switch off and on again" and it did start to write but it is not repeatable for the user. so i would like to know what is wrong with this kind of pre facelift ecu(s) usually i use 1024kb ecus and they just work Title: Re: Cant write on older me7.5 ecu Post by: Blazius on July 16, 2019, 03:18:18 PM Hi, i have a strange 8L0906108N APY ecu here. I were unable to write to the ecu via obd on the bench so i had to boot. I did immo off aswell while ecu was open and ready2boot. attached files are on the ecu when things happen like described. mpps18 repeatedly shows switching to high speed :-\ mpps12-16 shows block transfer message correctly received nefmoto shows: i did try to change the voltage but nothing happened. older mpps sometimes prompted "switch off and on again" and it did start to write but it is not repeatable for the user. so i would like to know what is wrong with this kind of pre facelift ecu(s) usually i use 1024kb ecus and they just work Tried pulling instrument fuse with mpps via obd? ? Sometimes mines does that, sometimes it doesnt , I just pull immo fuse, ignition on, ignition off, instrument fuse back in , try again, if doesnt work, try with instrument fuse fully off. For some reason the instrument fuse disrupts the kline sometimes , but its weird you cant do it in bootmade either. Also, are you sure it has a stock chip in it ? Title: Re: Cant write on older me7.5 ecu Post by: aef on July 16, 2019, 03:30:47 PM All described happened on the Bench like i wrote.
Chip is 400bb Title: Re: Cant write on older me7.5 ecu Post by: BlackT on July 16, 2019, 10:59:54 PM That ECU doesen't support writhing tru OBD. I tryed with galleto 1960, galleto 2, mpps, nefmoto.
Only boot mode Same as new ECU(software not hardver) doesen't support reading via OBD http://nefariousmotorsports.com/forum/index.php?topic=16265.msg126044#msg126044 Title: Re: Cant write on older me7.5 ecu Post by: nyet on July 16, 2019, 11:01:06 PM Fast writing premium feature NOT enabled. Why are you using that version of nef? Title: Re: Cant write on older me7.5 ecu Post by: aef on July 16, 2019, 11:54:27 PM @blackt you are not correct
i did write some of these already i think @nyet Because its the one i have installed. Didnt check for newer version for years because i don't use it. Do you mean its old version or do you refer to the premium non licenced version? Title: Re: Cant write on older me7.5 ecu Post by: nyet on July 16, 2019, 11:55:44 PM @blackt you are not correct i did write some of these already i think @nyet Because its the one i have installed. Didnt check for newer version for years because i don't use it. Do you mean its old version or do you refer to the premium non licenced version? The latest version no longer requires a license for the premium features. Title: Re: Cant write on older me7.5 ecu Post by: aef on July 16, 2019, 11:59:14 PM okay nice to hear but is this related to my problem with the ecu?
Quote Requesting security access. ECU reports that security access is not supported. Title: Re: Cant write on older me7.5 ecu Post by: nyet on July 17, 2019, 12:03:47 AM okay nice to hear but is this related to my problem with the ecu? No. Your ECU looks like a weird variant and I don't think anything will flash to it over OBD. Title: Re: Cant write on older me7.5 ecu Post by: aef on July 17, 2019, 12:10:24 AM http://nefariousmotorsports.com/forum/index.php?topic=6324.0
maybe this is my problem ??? didnt have 121 powered Title: Re: Cant write on older me7.5 ecu Post by: BlackT on July 17, 2019, 03:43:20 AM http://nefariousmotorsports.com/forum/index.php?topic=6324.0 512 kb ECUs dont have power on 121 pin in carmaybe this is my problem ??? didnt have 121 powered Title: Re: Cant write on older me7.5 ecu Post by: fknbrkn on July 17, 2019, 03:43:54 AM That's definitely the reason
Nef shows warning about wrong memory layout on these ecu but it's ok Title: Re: Cant write on older me7.5 ecu Post by: aef on July 17, 2019, 04:31:49 AM That's definitely the reason Nef shows warning about wrong memory layout on these ecu but it's ok Whats the reason? Title: Re: Cant write on older me7.5 ecu Post by: Blazius on July 17, 2019, 05:27:39 AM So if 512kbs ECU's dont have 121/62 powered etc. ,how am I flashing my 512kb NB ME7.5 thru MPPS via OBD without bootmode in car? :D
Title: Re: Cant write on older me7.5 ecu Post by: fknbrkn on July 17, 2019, 06:09:12 AM Whats the reason? Pin121 etcTitle: Re: Cant write on older me7.5 ecu Post by: prj on July 17, 2019, 06:31:30 AM This ecu flashes perfectly fine in car over OBD with proper tools.
Title: Re: Cant write on older me7.5 ecu Post by: BlackT on July 17, 2019, 06:42:38 AM 512 kb don't use pin 121. If you don't bellive me
Look at any shematic of car with 512 kb ECU Title: Re: Cant write on older me7.5 ecu Post by: aef on July 17, 2019, 11:26:48 PM This ecu flashes perfectly fine in car over OBD with proper tools. does this mean it will not on bench? we have alot different answers here in this thread and i lend the ecu to a friend so i cant test pin 121 within the next week regards |