Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community - FT86CLUB - View Single Post - ecuflash error-cannot read or write, interface closed

fatboydean · 05-01-2021, 04:06 AM

It was working fine before and was able to flash and read, all of a sudden it stopped working. Car can start without any problem so I guess the ECU is not bricked, here is the error msg:

[23:43:56.040] J2534 API Version: 04.04
[23:43:56.040] J2534 DLL Version: 1.02.4870 Feb 3 2017 23:36:31
[23:43:56.040] Device Firmware Version: 1.17.4869
[23:43:56.040] Device Serial Number: TAU4U***
[23:43:59.720] reading vehicle info...
[23:43:59.728] CALID : ZA1JA01G
[23:43:59.730] CVN : 25DF8F8F
[23:43:59.735] VIN : JF1ZCAC18G******
[23:43:59.855] starting programming session...
[23:43:59.856] turning off DTCs...
[23:43:59.869] turning off unnecessary communications...
[23:43:59.871] unlocking ECU...
[23:43:59.871] Requesting Seed...
[23:43:59.872] interface close
[23:43:59.875] interface close

That's about it, just says interface closed...
Anyone have any recommendations on how to solve this?
I have already tried to reinstall ecuflash it did not help

Thanks a lot!

05-01-2021, 04:06 AM	#1
fatboydean Member Join Date: Apr 2020 Drives: 2016 BRZ Hikari Location: British Columbia Posts: 78 Thanks: 30 Thanked 16 Times in 14 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	ecuflash error-cannot read or write, interface closed It was working fine before and was able to flash and read, all of a sudden it stopped working. Car can start without any problem so I guess the ECU is not bricked, here is the error msg: [23:43:56.040] J2534 API Version: 04.04 [23:43:56.040] J2534 DLL Version: 1.02.4870 Feb 3 2017 23:36:31 [23:43:56.040] Device Firmware Version: 1.17.4869 [23:43:56.040] Device Serial Number: TAU4U* [23:43:59.720] reading vehicle info... [23:43:59.728] CALID : ZA1JA01G [23:43:59.730] CVN : 25DF8F8F [23:43:59.735] VIN : JF1ZCAC18G**** [23:43:59.855] starting programming session... [23:43:59.856] turning off DTCs... [23:43:59.869] turning off unnecessary communications... [23:43:59.871] unlocking ECU... [23:43:59.871] Requesting Seed... [23:43:59.872] interface close [23:43:59.875] interface close That's about it, just says interface closed... Anyone have any recommendations on how to solve this? I have already tried to reinstall ecuflash it did not help Thanks a lot!