My trailer connector has 12 volts and ground. Running lights work but not brake

What is your question?

turn signals and brake lights do not work. Checked trailer with neighbors vehicle and everything works on trailer. Turn signals and brake lights function on the truck.

Ammj in Valparaiso IN

Jul 22, 2015

1 Reply

What are the best GMC repair shops?

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Tuffy Tire & Auto Service Center - Grandview

4.7

(85)

2.39 mi

1524 W 5th Ave

Columbus, OH

Closed

Opens 8:00 AM Mon

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Excite Auto Repair & Towing

4.4

(15)

5.94 mi

3430 Westerville Road

Columbus, OH

Closed

Opens 9:00 AM Mon

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All In Auto Service

4.8

(28)

6.56 mi

5200 Fisher Road

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Opens 8:00 AM Mon

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Tuffy Tire & Auto Service - Grove City

4.4

(522)

6.67 mi

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Open

Closes 5:00 PM

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Blackstone Complete Auto Care

4.1

(38)

6.77 mi

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Open

Closes 6:00 PM

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Boyd's Tire & Service - Columbus

4.7

(185)

7.23 mi

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See All 30 Locations

Tuffy Tire & Auto Service Center - Grandview

4.7

(85)

2.39 mi

1524 W 5th Ave

Columbus, OH

Closed

Opens 8:00 AM Mon

Call