This code is not going to be related to the misfire. This code is for the loss of communication with the RIM, radio interference module.
Is the vehicle still acting up like it has a misfire or running poorly? If not, then you will need to test voltages at the RIM to figure out what is missing. It is going to be power, ground, or the communication wires shown below.
Let me know if you have questions on this. Thanks
Images (Click to enlarge)
Thursday, April 8th, 2021 AT 4:50 PM