In some situation,your ISTA+ software build communication with BMW gateway correctly and work well,but when you trying E-sys can’t.So here is a solution for you fix this problem.
Run Tool32 software,double click “steuern_reset_learn_flexray” to perform command
Double click “steuern_learn_flexray”
Perform ZGW gateway reset
Note:If after resetting,communication error still exit.Please check if ICOM or ZGW damaged.