Tool/software:
After triggering an ESM fault, performing a warm reset without clearing the ERR pin status by writing esmREG->EKR = 5
after rebooting, writing twriting esmREG->EKR = 5 has no effect, the counter does not decrement, and the ERR pin remains low.
At this point, if another ESM fault is triggered, the counter increments, and the ERR pin goes high