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C121C Diagnostic Trouble Code Discussion for May 2023

Torque request signal denied


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Trouble Ticket Help Requests for DTC C121C
Help Request Posted
2015 Jeep Patriot Latitude 2.4L Cuts out, Stall VIN: 1C4NJRFB7F
C121C: Torque Request Signal Denied. ... customer stating that the dealership said it needed a new PTO unit. this was diagnosed a year ago and they have been driving it since. After talking to the customer they stated that there were run issues with the vehicle. Customer stated that it felt ...
May 19, 2023