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Yes. Check the fuse/relay center under the hood.
Fuse is located on the positive battery terminal labelled F/L 30A
There are about 5 fuses for the trailer harness, Trailer Back up,Trailer left turn, Trailer right turn, Trailer Brake, and Trailer hazards. They are located in the underhood fuse box on the Drivers side of your motor. On my 2003 Silverado, the Trailer left/stop and Trailer right/stop fuses are located in the fuse panel just inside the driver's side door. (Not sure about the trailer brake or hazard fuses.....I wasn't having problems with those :). There is one additional fuse for the trailer harness. The 15A fuse for the trailer running lights is located in the fuse panel under the hood, next to the battery. The fuse is labeled "Trailer Park".
Yes, on a 2001 Tacoma it was a blown 5 amp fuse in the separate harness dedicated to the trailer lights. I did not realize Toyota Tacoma's came with a separate harness and fuse block just for the trailer lights/harness (this is separate from the under dash (#1) and under hood (#2). On a 2001 Tacoma , it located underneath the driver's side rear jump seat next to the factory tire jack.
Bad BulbBulb socket corroded & shortingBad Harness and/or wiring & shortingIf you have a trailer hitch harness, check that tooCheck license plate light (sometimes on same circuit)For bulb information see sources and related links below.
check the bulbs if that does not work,check your wiring harness.i had the same thing happen to me and it was my wiring harness
I imagine a 2002 would have similar wiring to a 2000 Explorer which I've just discovered myself has 2 fuses dedicated to the factory installed trailer wiring. Fuse #3 is for the left trailer signals and fuse #7 is for the right. Hope this helps someone to avoid all the hassle I went through to figure this out.
it is under the hood on the driver side in the fuse box
The Ford F2 50 trailer wiring fuse will be one of the auxiliary fuses in the fuse box. The auxiliary fuses will be the last four fuses in the second column.
In the floor cover behind the drivers seat (turn the knob on the cover & lift it out) you'll see some inline fuse holders in the wiring harness........... one of them is the trailer brake lights Good Luck !!!
check wiring from battery to wiring harness to fuse (check fuse also) to harness to brake light. Check ground, too
Yes. Bad wiring can make any fuse blow