KESS V2/KTAG Ksuite “External exception EEFFACE” error

One of our customer reported that both KESS V2  v2.13 firmware 4.036 master and K-tag KTM100 firmware 7.003 ecu tuning tool V2.13 had “External exception EEFFACE” error when reading ECU on Windows XP without anti virus programs.


Possible reason:

  1. Driver issue

Driver is not well installed

2. TF connection issue

Kess V2/Ktag  fails to read out TF card program or the program in the TF card not working properly



  1. Make sure driver is well/completed installed.

Follow the video to install K-suite V2.13

2. If driver is set properly. Dissemble the kess v2 or Ktag device to check the TF card. Replace the TF card.

Clean up the shrapnel on the card slot with a brush

If the card slot shrapnel is not flexible enough, lift up the shrapnel a little bit to make sure it can communicate well with the TF card

Clean the TF card and then put it back to card slot.