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Unread 04-28-2014, 08:41 PM   #1
jamiejamesjr
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my fiance's 2010 grand cherokee

It all started with a right rear brake light out and then the rear signals went. Now the front signals still work however they flash faster than normal indicating a bad relay maybe? I'm okay with troubleshooting mechanical but electrical I have a lot to learn. Any advice or suggestions would be greatly appreciated!

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Unread 04-29-2014, 03:12 AM   #2
JPNinPA
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When one light is out the others will blink faster. If changing the bulb doesn't work check the ground of the failing signal.
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Unread 04-29-2014, 12:25 PM   #3
jamiejamesjr
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Right on thanks...I was hoping that too...do I need a diagnostic for ground faults or just a visual inspection and where are the ground wires found?
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Unread 04-29-2014, 02:01 PM   #4
strvger01
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visual should do the trick really. if it's in a place you can't see easily, then you might have to use a meter to check it.
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Unread 04-29-2014, 02:15 PM   #5
jamiejamesjr
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So the ground can be seen near the lens where the wire harness ends or trace it back...I'm not sure how to visually check for ground faults as far as where to look...I can easily get a diagnostic at the local parts store...probably the most accurate method I assume?
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Unread 04-29-2014, 06:29 PM   #6
JPNinPA
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Trace the wire back. You could just remove the screw, use sandpaper to shine up the connection on he body and connector.
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Unread 04-29-2014, 06:56 PM   #7
jamiejamesjr
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Got it thanks...liking this forum as a newbie...much thanks going out to everyone and their help...and I love all of my five Jeeps!
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Unread 05-11-2014, 03:48 PM   #8
jamiejamesjr
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Took the advice...just changing out the brake light bulb took care of all the other issues...thanks again for all your help guys!

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