Have a miprom 21 with a analog dc drive. the car continues to intermittently get a
18 fault. it will run for a day and in the morning it will be at the bottom shut down.
sometimes it will show no faults under the service log, but it will say no retries left under the motion excuse screen 18. tell it to resume operation and all is well . we have been thru all the locks, the m contactor, replaced the power supply. if it does log a fault , in the fault log it will have an 18. along with no retries 18 under motion excuses. the mechanic indicated that he had it happen to him today. he had reset the fault, and was running the car, he went to leave and rode the car to the bottom floor where he gave it a couple of calls, the doors closed and it would not run he went to motor room and same thing. kind of strange any ideas