Mysterious wire :: What could it possibly be?

Discussion in 'GM Electrical Tech' started by sierra11, Mar 9, 2013.

  1. sierra11

    sierra11 Rockstar 100 Posts

    Earlier today I was taking off the plastic shield over the radiator and grill and noticed a wire/connector that wasn't plugged into anything. Well I sat around trying to think what it could have been to but was stumped. Any ideas from ya'll would be great.

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  2. Crawdaddy

    Crawdaddy All hail the Mad King!! Staff Member 5+ Years 1000 Posts Platinum Contributor

    Do you have a rearview mirror with an outside temp display? If not, my guess is it's for the outside air temp sensor.
  3. SurrealOne

    SurrealOne Former Member ROTM Winner 1000 Posts

    There's one on my Sierra, too. It's a sensor of some kind.
  4. sierra11

    sierra11 Rockstar 100 Posts

    Oh okay yeah I do have a temp gauge on my rear view, I never would have guessed that
  5. barefoot greg

    barefoot greg Rockstar 100 Posts

    My 07 silverado duramax has one, i replaced the grille the other day and noticed it. Inside the cab there's a button by the airbag shutoff key slot. Judging by the picture on it It looks to be for somekind of light but when i push it nothing happens. I think its a snow plow prep package addon and the wire goes to the grille for auxillery lights.

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