Trailer lights not working - tested plug and checked 3 30a fuses in engine bay
Howdy - just got my 2015 SR5 a few weeks ago. Today, I went to plug in my drift boat trailer for a trip tomorrow, and I get zero trailer lights.
I plugged the trailer 4pin straight into the truck 4pin. I didn’t mess with any 7 to 4 adapter.
I got a circuit tester to check the truck socket, and I get red lights on it when testing for everything- blinkers, brakes, and the running lights.
The 3 30a towing fuses look perfect in the engine bay. I didn’t see anything else on the inside panel related to towing.
Is there a square fuse or other item Im passing over? I checked the connection under the truck directly to the socket too, but it seemed okay.
Trailer lights worked fine on my 2000 4runner a month ago.
I’m terrible with wiring and appreciate any help. I have a multi meter but don’t honestly know what to do with it for this issue. Not even sure what shop I could take it to to check something like this.
I hate to run the trailer with no lights and chance a ticket, but I have to take clients tomorrow and chance it.
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1973 Datsun 240z (traded in for ---->) 1981 Toyota 4x4 Deluxe LB (avatar) stolen while sitting with For Sale sign on it / 1987 Chevrolet Suburban 4x4, workhorse - sold / 1984 Buick Grand National - Totaled, rear-ended / 1986 Buick Grand National - Sold then restified, lives in SF now / 1994 Toyota Camry - 240k - Taken to Austin Tx by son, traded in on VW GTI sport / 2001 Ford Excursion 7.3 212k - still pulling Arctic Fox Trailer - This is the shtf vehicle / 2018 Toyota 4runner TRD Pro Cavalry Blue
So, yesterday morning, once I got to the ramp, everything was working as usual on the trailer. I've got no clue. When I left the house, I had no trailer lights, and when I got to the ramp 2 hours later, I had lights.