Tail Lights Not Working After Installation Of A Turbo Timer

[Shane33]

Hi guys. i installed a turbo timer with a harness then one of the left tail light stop working. it's fine when I hit brake, but wont turn on as the parker light.

My question is, does the tail lights wire link to the new harness? or just a coincidence.

Thanx much!

[DVS JEZ]

Check the fuses first.

Then check the globes them selves.

Then check the park light switch