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GM Tech (Cam)
GM Tech (Cam), Chevy Technician
Category: Chevy
Satisfied Customers: 15201
Experience:  GM Grand Master Technician 2007. 14 years experience.
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Replaced turn signal switch and hazard switch but still did

Customer Question

Replaced turn signal switch and hazard switch but still did not fix the turning signal problem. Works sometimes.
Submitted: 8 months ago.
Category: Chevy
Expert:  kalamykid replied 8 months ago.

Do you have a digital volt meter and a test light?

Customer: replied 8 months ago.
Expert:  kalamykid replied 8 months ago.

Did you replace the hazard switch with a new one or a used one?

Customer: replied 8 months ago.
both new
Expert:  kalamykid replied 8 months ago.

Please tell me as best as you can what they are doing?

Customer: replied 8 months ago.
Sometimes engine won't even turn over when trying to start. Hit brake then it will.
Also move flasher around, then turning signal start working again.
sounds crazy.
Expert:  kalamykid replied 8 months ago.

I need to look over some wire diagrams. This may take a little bit. I ill be back asap.

Customer: replied 8 months ago.
Hey I am still waiting okay!
Expert:  kalamykid replied 8 months ago.

I am here. Do you have access to the back of the hazard switch?

Customer: replied 8 months ago.
Expert:  kalamykid replied 8 months ago.

Do you have a digital volt meter?

Customer: replied 8 months ago.
i do.
Expert:  kalamykid replied 8 months ago.

With your meter set to dc volts, see if you have 12 volts to the pink and orange wires on the back of the plug going into the hazard switch with the ignition switch in the run position.

Customer: replied 8 months ago.
No, I do not have 12 vdc.
Expert:  kalamykid replied 8 months ago.

Not on either of the two? Did you hold the black test lead on a good ground and test the two wires one at a time with the red test lead?

Customer: replied 8 months ago.
Let me try again, One second please!
Expert:  kalamykid replied 8 months ago.

ok

Customer: replied 8 months ago.
You are right, both of them have 12.4 vdc
Expert:  kalamykid replied 8 months ago.

That is good. Now we need to see if the turn signal switch is getting voltage like it should. Can you test the purple wire on the back of the turn signal switch and see if you have 12 volts? Make sure the hazard switch is connected and test the purple wire on the back of the hazard switch as well please.

Customer: replied 8 months ago.
Okay, I am getting 12 volts out on the purple wire at the hazard switch.
Can't get to the turning signal wire tonight because the weather is not helping. It is raining out
The signal wiring is cover up to good to get to. Is there anything else I can do, maybe in the morning. Can you email me what to do, please. Anything will be helpful. THANK YOU!
Mike
Expert:  kalamykid replied 8 months ago.

I am sorry Mike, I have to get you to do each test so I know what to have you check next. I will be back online tomorrow around 10 eastern, if you want to get back to work on it then.

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