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2017 ford f-250. I am trying to chase down a communication problem with the fcim module. At first there was no radio control or hvac operation I found a broken wire under the driver side floor trim panel that was immersed in saltwater (its a plow truck) I repaired that and now the hvac controls cycle between power and then off at about 3 second intervals. Is this the truck trying to communicate with the module but not receiving a response. It was the orange and grey wire that I found to be broken at first. After I made the repair everything came back to life I wiggled the wire harness and all was good so I put it all back together and then this started to happen. I think there is still a wiring problem but I am just a little confused as to why it is cycling like that.
Last edit: 2 years 8 months ago by 00smith. Reason: I wanted to add more info
