try programming new key and it should work, also if it is manual gearbox you will need to virginize the elv.
try programming new key and it should work, also if it is manual gearbox you will need to virginize the elv.
For the guys wondering why when a FEM flash fails you cant fix it
FEM has 2x SWFL, they control the ignition, if both SWFL become corrupted then the FEM does
not know when and how to cycle the ignition, this is why you hear the relays clicking, if the bootloader is ok you may be able to restore the SWFL by updating istep, if the BTLD is corrupted then its likely a new FEM
if only 1 SWFL is corrupted and the other is ok then the FEM can be restored
When relay click theres no communication with any tool.
Renault ECU tool / IO terminal / A.S.W
Strictly speaking thats not true, when the FEM/BDC solution was first introduced many tools had a problem whereby the original coding could not be restored, when this happens it also starts clicking, no ignition etc, easily fixed with esys. This can be seen on yanhua threads where people were complaining that the coding data cannot be restored hence why yanhua released the engineering menu, same with DP4. This is from my experience of working with many FEM/BDC
Im not talking about coding or eep lost. This not matter. Im talking about when flashing process and flash erased corupted in bga chips,power interupted etc. Its gone. You can do anytjing you want module will not comunicate with any tool. This is already tested with many tools,istas pistas huistas not matter. You will not be able to restore it. If you know how to doit ,write manual how to amd sell. I will be first who buy it
Renault ECU tool / IO terminal / A.S.W
A few days ago, Doing FEM on bench, Power supply cut at 60% upgrading, Vin = YYYYYYYYYYYYYYYYY, Key frequency: kein frequenz (no frequency)
fixed in 20 minutes all working fine, As i say if bootloader is there then any ECU can be recovered, If no bootloader then your likely in trouble
Read from beginning. Experts write hot to. After test ,report
Renault ECU tool / IO terminal / A.S.W
Hi,
I burned EEPROM,maybe with overheat.
Now, I will write an EEPROM from here, but following your steps I have a question: what is "restore coding" ? I will write dump on EEPROM, mount FEM and after programming keys with AVDI, right? I donīt understand "restore coding"...
Thank you!
Last edited by alex_r_2001; 27th January, 2022 at 08:49 PM.
Supas (29th January, 2022)
p1et (28th January, 2022)
fuzz1 (28th January, 2022)
But many other eeproms are glued also, especially from Trucks ECU's and I never heard anyone burned eeprom, maybe broken/lifted soldering pads but not damaged eeprom. There must be something odd in those FEMs eeproms because I heard 10+ times somebody lost it's data after desoldering or eeprom just snapped in half
Personally I don't do FEMs, for me it's useless to do it as key from dealer is almost same price as people offer and it's much risk. I can do if AKL because then time matters but spare key, hell noooo, not for me.
There are at least 3 steps when you can fck up.
1) reading eeprom - you can damage while desolder or you can read wrong data, either using clip or after desolder. Known case here when some tool just read this FEM eeprom wrong and in this case you don't have original backup so when you modify file, and write, you messed up
2) reflashing process will interrupt
3) original coding won't restore
That's too much for me
Last edited by p1et; 28th January, 2022 at 12:59 PM.
fuzz1 (28th January, 2022), qwojtus (29th January, 2022), super jumbe (28th January, 2022)
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