Hi there My brake light above the two stage isn’t working the single wedge bulb It’s not the bulb as i swapped with the working side and still doesn’t work but bulb started working on other side I’m thinking it’s the wiring to that bulb unit? How do I check this with a multimeter like you have?
Hi You need to check wiring diagram and find color of the wire for the brake light and trace it down to light module could be broken wire and check ground to don't know that my answer is gonna help you out but thanks !