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      10-28-2017, 03:48 PM   #1
Booey1979
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HELP outside temperature sensor cut (don't know why)

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Hi everyone,

About 2 weeks ago I received an error code with -40 degree error. Then my tire temp sensor went wacky on me and gave me an error.

Now, I took off my bumper and located the outside temp sensor and to my horror and shock it is cut. Worst of all there's no wiring lead that shows where the wire goes to the computer system. Does anyone know where the wire could potentially lead?
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      10-28-2017, 03:49 PM   #2
Booey1979
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BTW I am absolutely dumb founded as to how this happened. There are no rat droppings that I can see.
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      10-28-2017, 04:54 PM   #3
Esteban
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Quote:
Originally Posted by Booey1979 View Post
BTW I am absolutely dumb founded as to how this happened. There are no rat droppings that I can see.
Check for little footprints.
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      10-28-2017, 05:01 PM   #4
Booey1979
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Uggggggggghghhhhgghhgggggg
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      10-28-2017, 05:05 PM   #5
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Ok not sure this will help but if you click this link there's a couple pics of where the sensor wiring runs behind the front bumper bar: http://www.1addicts.com/forums/showp...9&postcount=80

I relocated my sensor but it should still be applicable to you. It's normally located on the lower right cowling.

If I remember correctly the wiring runs back to the right and in below the headlight. I'd check back there.
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      10-28-2017, 05:10 PM   #6
Booey1979
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When you say lower right is it driver side or passenger side
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      10-28-2017, 05:11 PM   #7
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Quote:
Originally Posted by Booey1979 View Post
When you say lower right is it driver side or passenger side
The car's lower right, therefore, passenger. Sensor looks like a Sorry! (probably other better ways to describe it that aren't fit for public consumption) game piece.
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      10-28-2017, 05:13 PM   #8
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Honestly, don't know if this is your case but I had about $2700 (got it reduced to $1400) in wiring damage a few years ago and the tech found tiny footprints on the inside of one of my front wheels. He said rats and mice love BMW wiring. lol
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      10-28-2017, 05:16 PM   #9
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I found the sensor unfortunately I can’t find the wiring and wiring leads. I took off passenger side headlight and no hanging wires were seen
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      10-28-2017, 07:10 PM   #10
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Ok how much would it take for me to pay you to remove your bumper and find the wiring source. Lol I’m serious
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      10-28-2017, 07:43 PM   #11
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Quote:
Originally Posted by Booey1979 View Post
Ok how much would it take for me to pay you to remove your bumper and find the wiring source. Lol I’m serious
Would love to help you out but no way I have the time to do that this week. If you're still in a bind from Wednesday afternoon I could take a look.
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      10-28-2017, 07:51 PM   #12
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I found it!!!!!!!!
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      10-28-2017, 10:47 PM   #13
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Thanks shock, the general idea the harness connects to the passenger side headlight area helped me find the wires. I had to slice open a wiring harness to see which wires matched the thermostat and bingo!!!

No tire pressure monitor error (that wiring was damaged), and my horn too was cut, and no outside thermostat check engine light. Resoldered the wires and shrink wrapped it. Total cost $6. Returning the sensor I bought on amazon. Not needed.
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