Error code 5102 on konica minolta c253 - Konica Minolta Office Equipment & Supplies

According to the service manual, Code: C5102 Code C5102 Description Transport motor's failure to turn
• The motor lock signal remains HIGH for a predetermined continuous period of time while the motor remains stationary. Remedy 1 Check the M1 connector for proper connection and correct as necessary. 2 Check M1 for proper drive coupling and correct as necessary. 3 Check the PRCB connector for proper connection and correct as necessary. 4 M1 operation check. 5 Change M1. 6 Change PRCB.
The technical sites say that there is probably a paper jam. If the jam is cleared but the error persists, the transport motor will probably need to be replaced. This motor has a pretty high failure rate. A qualified copier technician should be able to change it out in 30-60 minutes.