Hi,
Is it the parking lights or the brake lights? If the brake lights, locate the brake light switch at the top of the brake pedal. Confirm it is properly attached and the plunger is fully moving when applying the brakes and returning when brakes are released.
Next, if it is the parking lights, let me know. We will need to start checking wiring for a short to power.
Here is a link you may find helpful:
https://www.2carpros.com/articles/how-to-check-wiring
Pic 1 below shows the brake light switch location.
Let me know what you find or if you have other questions.
Take care,
Joe
See pic below.
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Friday, September 10th, 2021 AT 9:36 PM