Driver mirror goes left-right but not up-down - JeepForum.com
 
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post #1 of 7 Old 08-19-2017, 01:41 PM Thread Starter
gizmosmith
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Driver mirror goes left-right but not up-down

Grand Cherokee 2012 Overland

I took the glass off the mirror to see the motor behind. I can see it move left and right and hear it while it does so. I can't hear any motor strain or anything when I try to go up and down. Just, nothing.

I took the button control pad out of the arm rest and took it apart. Everything looks good there.

Are there other troubleshooting steps I can try? Is the left-right separately fused from the up-down?

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post #2 of 7 Old 08-19-2017, 02:43 PM
skipperau
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Quote:
Originally Posted by gizmosmith View Post
Grand Cherokee 2012 Overland



I took the glass off the mirror to see the motor behind. I can see it move left and right and hear it while it does so. I can't hear any motor strain or anything when I try to go up and down. Just, nothing.



I took the button control pad out of the arm rest and took it apart. Everything looks good there.



Are there other troubleshooting steps I can try? Is the left-right separately fused from the up-down?


Did you check the switch with a multimeter? It's possible for the contacts to be dirty/carboned up without any external signs.


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post #3 of 7 Old 08-19-2017, 03:22 PM Thread Starter
gizmosmith
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Is there a pinout diagram or schematic for it I could use to check it out?
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post #4 of 7 Old 08-19-2017, 03:25 PM
sdjp
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I'd check the condition of the wiring in the crux of door going from the body to the door just as a precaution. Then I'd pull the door panel (look on WJ jeeps for an exact how to), and use a multimeter to check and track where the wiring stops sending power, or if the motor blew somehow, etc.
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post #5 of 7 Old 08-19-2017, 03:42 PM
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There are pin diagrams online if you Google around; just be aware there are some slight variations on certain year/ model WJ's, so just be sure you're looking at the right one.

If you haven't opened the door panel before; it can look intimidating with all the wiring but after checking for a break in the door crux wiring (pull back the black rubber boot and inspect wires...be warned it's a bit of a pain to get back on) my first go to would be the wiring from the side view mirror to the plug that is directly underneath your window controls.

Keep troubleshooting and you'll find the source, it's not black magic. Hopefully just a loose or dusty connection, or a broken wire that needs a splice. Good luck.
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post #6 of 7 Old 08-19-2017, 06:32 PM
99SK04GTX
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At least rolling down the window and applying finger pressure to locate it correctly is easily accomplished.
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post #7 of 7 Old 08-19-2017, 11:04 PM
fastblack
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2012? Try asking around in the WK2 section of the forum. Might be a common problem with that era Grand Cherokees.


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