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Ask Wrenchtech Your Own Question
Wrenchtech, ASE Certified Technician
Category: Chevy
Satisfied Customers: 1403
Experience:  40 years experience with ASE certification as Master Technician with L1--Repair Shop Owner
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chevy: bulbs..fuses and replaced brake light switch still nothing

Resolved Question:

''05 chevy hd 2500 brake lights not working! Replaced bulbs checked all fuses and replaced brake light switch still nothing!
Submitted: 8 years ago.
Category: Chevy
Expert:  Wrenchtech replied 8 years ago.
Does the 3rd (high mount) brake light work?

Customer: replied 8 years ago.
Reply to Wrenchtech's Post: yes
Expert:  Wrenchtech replied 8 years ago.
Then you have a bad combinastion switch in the steering column. The turn signal switch is actually the part that has a problem. The 2 lower lights only are routed through the turn signal switch so the turn signals can cancel the brake lights when necessary.
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