i have a 2010 escalade esv and have a service suspension message. i have replaced rear shocks,ride hight sensors, suspension control module, compressor and its still on . tried pulling rtd fuse still on , used the resistors on shocks disconnected battery and pulled rtd fuse still on. i can not figure this out and i really need help. the biggest issue is not being able to go over 80mph because of the message.