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When I put either right or left turn signal on and hit brake…

Customer Question
When I put either...

When I put either right or left turn signal on and hit brake both brake lights and turn signals flash

Mechanic's Assistant: Have you checked the brake fluid? How's the level and when was it last changed?

Just changed not long ago

Mechanic's Assistant: What is the model/year of your Chevy?

2001 Chevy Silverado Z71 4x4

Mechanic's Assistant: Are you fixing your Silverado yourself? What have you tried so far?

Yes, put in new directional relay

Mechanic's Assistant: Anything else you want the mechanic to know before I connect you?

Before i put in the directional relay, when i turned right turn signal on it would make left signal flash

Submitted: 11 months ago.Category: Chevy
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Answered in 20 minutes by:
9/10/2017
Chevy Mechanic: Mechanic01, ASE Certified Technician replied 11 months ago
Mechanic01
Mechanic01, ASE Certified Technician
Category: Chevy
Satisfied Customers: 3,842
Experience: Owner at Baltic investments
Verified

Hello my name is ***** ***** welcome to just answers! I will be assisting you with all of your vehicle questions today. Give me one moment while I review your question and come back with a answer. Please be aware I do not know your skill level or abilities so I will be asking a lot of questions and in a lot of cases we will respond to each other quite a lot before we find a solution. As far as phone calls are concerned that is the system prompting you, not me, and they do cost more money, I prefer text but in some cases a phone call is required. If I don’t answer right away or quickly in conversation I am helping another customer or have stepped out for a moment and will respond as soon as I can. Ok lets get started!

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Chevy Mechanic: Mechanic01, ASE Certified Technician replied 11 months ago

more than likley you need a multifunction switch, all of those functions go though that switch, do you have a voltmeter for some testing?

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Chevy Mechanic: sprinkles08, ASE Certified Technician replied 11 months ago
sprinkles08
sprinkles08, ASE Certified Technician
Category: Chevy
Satisfied Customers: 24,222
Experience: ASE Master and Advanced level certified. Factory trained with 17 years dealership experience
Verified

Hello and welcome to JustAnswer!

You could have a handful of things going on and it will require some electrical testing to determine what is going on. I would first suspect a poor ground in the rear but the problem may also be circuits that are shorted together.

Do you have trailer wiring?

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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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