In my prior class A I had three Power Distribution Centers. There was one in the engine compartment and 2 under the dash. The one that was listed in the manual was the one installed by Ford and did not include the 7 pin because that is installed by the RV Manufacturer. The Thor installed centers, or fuse boxes, were under the dash by the driver's left foot. I almost had to remove the driver's seat to get at them.
Yes, if you are not getting turn signals or brake lights to the seven pin there is both a relay and fuses.
On my current rig I have four fuse boxes, 3 in the engine compartment and one in the battery box. The one in the battery box is the one that holds the 7 pin fuses and relays for this coach.
Happy hunting.
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Dave
US Army (Ret)
2020 Entegra Accolade 37TS
2019 Jeep Grand Cherokee Trailhawk TOAD
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