ddillenger
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« Reply #15 on: December 18, 2014, 03:45:09 PM »
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Nice, I'm making progress  I'm planning to write it to my ecu through obd port, by grounding pin 24. I will ground pin 24 to battery minus, right? When I'm looking at instructions on how to get into bootmode, I see powering off and on ecu, and in my case that means turning ignition on and off? How do I know when I'm in bootmode? What to do after the procedure? How to get to "normal mode"? Cycle the power off, then back on to exit bootmode. |
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MiniMi3z
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« Reply #16 on: December 18, 2014, 03:55:51 PM »
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I got message saying: "Unable to open file '95040.bin'. <error=0x04>"
Means I'm not in bootmode, or what? I have me7_95040 on desktop and my 95040.bin also.
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turboat
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« Reply #17 on: December 18, 2014, 04:06:18 PM »
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That means it can't find the file, you get a different error if it's not in bootmode (I think). Type dir and make sure the .bin is listed.
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MiniMi3z
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« Reply #18 on: December 18, 2014, 04:14:09 PM »
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Now I got: "Starting Boot_mode ... FAIL ... No response from ECU." That means I'm not in bootmode? Or is there something else failing? What am I doing wrong going to the bootmode? E: Now "Starting Boot_mode ... FAIL ... No echo from cable" E2: Feeling little dumb at this point. Thought the pin 24 was the pin 24 from connector, which it seems to not be... Well, I'll try tomorrow with the real pin 24 and we'll see what happens. E3: Meh, still getting No response from ECU.. Something happens tho when grounding pin 24. EPC and Immobilizer dashlights go away. Still not in bootmode I guess, since it doesn't work.. Any ideas? I think I start setting up a bench to do this shit, if it solves the problem.. |
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« Last Edit: December 19, 2014, 04:52:48 AM by MiniMi3z »
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MiniMi3z
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« Reply #19 on: December 19, 2014, 06:11:55 AM »
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Could changing baud rate help?
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MiniMi3z
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« Reply #21 on: December 19, 2014, 01:04:35 PM »
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"E2: Feeling little dumb at this point. Thought the pin 24 was the pin 24 from connector, which it seems to not be... Cheesy Well, I'll try tomorrow with the real pin 24 and we'll see what happens."
Mentioned already that I just realized that and I tested with the pin inside the ecu with no success.
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ddillenger
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« Reply #23 on: December 20, 2014, 10:15:21 AM »
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Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your experience!
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MiniMi3z
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« Reply #24 on: December 20, 2014, 11:01:40 AM »
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No wonder it didnt work at all since it just burns the fuse.(250mA) Just wondering whats going wrong.
Secondly, is it supposed to ground the pin 24 of the chip, OR ground the SPOT of 24 pin on the whole board? Since I got a board in which the chip is kinda lifted up, therefore mixing the connections a little.
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jogtx16v
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« Reply #25 on: December 20, 2014, 11:28:21 AM »
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you burn the the 250mA fuse in bench ? try 500mA not more
if I remember an ecu need between 200 and 300mA in a bench set up
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« Last Edit: December 20, 2014, 12:09:18 PM by jogtx16v »
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MiniMi3z
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« Reply #26 on: December 20, 2014, 12:40:21 PM »
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I also tried one 300mA I had, and it burned slowly. I mean it didn't just burn like snap, it took more like 10s. Now I'm out of fuses, those 2 were the only ones of the right caliber I found in the garage. Gotta get some more, to see if something is fucked.. So 500mA is still pretty safe to try? But if someone mind answer my second question that'd be great. I could provide a picture of that ecu if someone needs. Don't know if you already ran into ecu like this before, with the "lifted" chip. I think it has something to do with the fact that the ecu I'm working on now is indeed chipped. But I need answers on wether it's the pin 24 on that chip I need to ground, or if its the spot that it is on on the board, if you get what I mean. Since that spot and the pin 24 in my case are not connected. And if I remember right, I measured that the spot and flash eprom (on this pic: http://wiki.obdtuning.com/images/thumb/9/97/VAG_ME_7_Platine1.jpg/800px-VAG_ME_7_Platine1.jpg) are connected. So I'm not sure which one I need to ground for the boot mode. |
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jogtx16v
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« Reply #27 on: December 20, 2014, 01:09:47 PM »
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humm, you burn a 300mA fuse ? ok don't try the 500mA. something is wrong in your benchsetup or ecu. the ecu is out the car right ?
post a pic of your bench if you can.
for the boot pin, the pin 24 on the picture with arrow is the same as the spot with the red circle. Its just more safer to apply a ground to the spot. and you don't need to lift any pin. you can use one multimeter probe to touch the spot with red circle. you need to plug the other side of the probe to your negative source of power supply
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« Last Edit: December 20, 2014, 01:15:20 PM by jogtx16v »
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turboat
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« Reply #28 on: December 20, 2014, 01:14:30 PM »
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By lifted do you mean there is a riser board where your eeprom should be? Sounds like you chipped ecu which you won't be able to read just by grounding pin 24. Post a picture of your ecu.
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MiniMi3z
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« Reply #29 on: December 20, 2014, 01:37:31 PM »
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humm, you burn a 300mA fuse ? ok don't try the 500mA. something is wrong in your benchsetup or ecu. the ecu is out the car right ?
post a pic of your bench if you can.
for the boot pin, the pin 24 on the picture with arrow is the same as the spot with the red circle. Its just more safer to apply a ground to the spot. and you don't need to lift any pin. you can use one multimeter probe to touch the spot with red circle. you need to plug the other side of the probe to your negative source of power supply
Nothing wrong with the setup, don't know about the ecu. Ecu is out of the car yes. Ok, so I have grounded the wrong spot. Pretty stupid to talk about pin 24 when infact thats not what you are intending to ground. I'll post a picture of my ecu soon. |
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