Tail lights and brake lights

Z800xp · Dec 14, 2024

2018 389 I have no tail lights or brake lights and know what caused it. The trailer had a short which caused the lights to quit. Is there something in the computer that has to be reset or what? I checked all fuses.

xsetra · Dec 14, 2024

I don't have any information specific to your truck.
Unplug your trailer pigtail. Cycle the truck to key on and off. The tractor circuit breakers might reset.
Good luck

Goodysnap · Dec 14, 2024

There is no resets in the CECU for lighting. The only circuit protection is the fuses. Most lighting fuses are in the PDC under the hood.

Z800xp · Dec 15, 2024

Thank you. Forgot about the fuses under the hood.

Diesel Dave · Dec 15, 2024

Z800xp said: ↑

Thank you. Forgot about the fuses under the hood.
Click to expand...

Been there done that. Fuse on the firewall under the hood. It’s going to be on the lower left side of it.

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