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Rear defrost and heated mirrors not working

Tiny
RJC42005
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  • 18 POSTS
At the grid there are 2 wire's connected to the grid and goes into the top of the antenna module.
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Thursday, December 31st, 2020 AT 11:21 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
One has to be ground, then. Can you check for continuity to ground?

Joe
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Thursday, December 31st, 2020 AT 7:53 PM
Tiny
RJC42005
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What's continuity? What tool do I need to buy now for it? And how do I check it?
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Thursday, December 31st, 2020 AT 9:53 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
When you check continuity, you are confirming there is a connection between two places. In this case, it is the unbroken and consistent connection between the start of a wire and the end of it. You can use a basic multimeter or voltmeter.

Take a look at the following link. You will be checking for a complete circuit with little to no resistance. It explains checking resistance using the ohms setting on a multimeter.

https://www.2carpros.com/articles/how-to-check-wiring

Let me know.

Joe

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Friday, January 1st, 2021 AT 11:36 PM
Tiny
RJC42005
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Have given up. Said to heck with it.
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Monday, January 4th, 2021 AT 5:39 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
Electrical problems can be frustrating but please hang in there. Lets try replacing the perm LP relay in the behind the glove box relay panel. Here is the location. Check out the diagrams (below). Let us know what happens and please upload pictures or videos of the problem.
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Wednesday, January 6th, 2021 AT 11:25 AM
Tiny
RJC42005
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None of the posted diagrams say which one is the one behind the glove compartment.
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Wednesday, January 6th, 2021 AT 11:32 AM
Tiny
RJC42005
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  • 18 POSTS
And looking through all the diagrams, I don't see anything that says "PERM ID"?
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Wednesday, January 6th, 2021 AT 11:34 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
Sorry, its "perm LP" in the first diagram.
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Thursday, January 7th, 2021 AT 11:22 AM

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