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Arench, Master Technician
Category: Chevy
Satisfied Customers: 1490
Experience:  30-years experience auto and truck repair.
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2008 Trailblazer: factory plug for trailer tail lights..Turn signals

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2008 Trailblazer trailer electric problem. I don't have power in the factory plug for trailer tail lights. Turn signals and brake lights work. I have tried to locate a fuse that would control the tail lights in both the engine compartment fuse box and under the back seat. I have a plug in tester in the modular plug on the vehicle. Which fuse would control the tail lights? What else should I check?


Greetings from Arench.


Fuse 43 in the rear fuse box is for the trailer parking lamps.


Check for voltage on both sides of this fuse with the parking lights on.




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