I was driving around and noticed my shifter was aibt loose from a recent track day. Pulled over, turned the car off and pulled the center trim peice that goes around the shifter. Found a couple loose bolts put the cover back on, started up the car and all my running lights and my dash lights wont come on. If i turn on the headlights all i get are the headlights, sidemarkets/tail lights wont come on. Brakes will come on if i step on them. I checked all 3 fuse boxes one inside the car by the clutch pedal. 2 in the engine bay ... All fuses checked out fine on the ohm meter. So i'm completely stumped... Anyone else had this happen on their FD? I tried messing with the interior light adjustment dial doesn't do anything...

Bad TNS relay.

Had the same issue...was the TNS relay, or the wires going to it. Just re-soldered their connections and swapped out relays to be safe. No issues so far....

whats a TNS relay and is there one on an FC? Having same issue.

not sure if its called the same thing but yes there is a relay up in the front of the radiator that went out on my car and casued all the running lights to go out. I just swapped it with another one up there and problem fixed. There are a couple un used relays up there

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