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There is a plug by your rear bumper on the right side, they are known to get moisture in them and cause all sorts of issues, like no a/c, windows won't roll down and airbag light on dash. My 2019 F250 did this recently after heavy rain. I dried it out and slathered it in dielectric grease, no problems since.
There is a plug by your rear bumper on the right side, they are known to get moisture in them and cause all sorts of issues, like no a/c, windows won't roll down and airbag light on dash. My 2019 F250 did this recently after heavy rain. I dried it out and slathered it in dielectric grease, no problems since.
Yes they should be checked. The MS-CAN bus passes through C405.
Thanks for all the replies. I didn't take a picture of the connector, but it was wet and had some discoloration on it. Below are some pictures of the sensor. Should I separate the sensor from the housing?
When you say "get the original SOD working by fixing the circuit issues", do you think the issues are solely from the connector, or could the SOD itself be damaged from being under water?
"If you entirely disconnect the taillamp on the outside connector, you will have no lights on that side, and the MS-CAN us issue will still be there."
Is that because the circuit will not be complete? Or because the truck is still looking for the SOD?
Thanks for all the replies. I didn't take a picture of the connector, but it was wet and had some discoloration on it. Below are some pictures of the sensor. Should I separate the sensor from the housing?
When you say "get the original SOD working by fixing the circuit issues", do you think the issues are solely from the connector, or could the SOD itself be damaged from being under water?
"If you entirely disconnect the taillamp on the outside connector, you will have no lights on that side, and the MS-CAN us issue will still be there."
Is that because the circuit will not be complete? Or because the truck is still looking for the SOD?
You would only need to separate the module from the housing if you are going to replace the module. There may be nothing wrong with the module itself. You need to make sure the conneector terminals are all dry and clean so they make good contact with each other. Re-connect everything and give it try.
Yes, both things . If the connection for the MS-CAN bus is bad, the Gateway Module (GWM), which controls all the buses, will be looking for the module and the CAN bus circuit will be broken so it will not work properly.
Depending on exactly which DTCs were initiated, you my need to clear the DTCs before things go back yo normal even if the SOD and MS-CAN bus are working properly.
This sounds very familiar to what happened to me when my FCIM went out. I lost power seats, mirrors, running boards, HVAC, airbags, windows wouldn't work, etc. Dealership first thought BLIS, but it tested fine and was the FCIM.
I just wanted to give an update and thank all of you that offered suggestions. I let everything dry out for a couple of days, then applied dielectric grease to the connectors and hooked everything back up. It's been 2+ weeks and no other issues. Y'all saved me a bunch of time, a trip to the dealer, and who knows how much money for them to diagnose and fix. Thank you!!
I just wanted to give an update and thank all of you that offered suggestions. I let everything dry out for a couple of days, then applied dielectric grease to the connectors and hooked everything back up. It's been 2+ weeks and no other issues. Y'all saved me a bunch of time, a trip to the dealer, and who knows how much money for them to diagnose and fix. Thank you!!
