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Climate control lights out

Tiny
JOSHUA STEVENS
  • MEMBER
  • 2009 CHEVROLET IMPALA
  • 3.5L
  • V6
  • FWD
  • AUTOMATIC
  • 107,000 MILES
Hello, my climate control lights are out and I cannot find any information if this could be a fuse or just the bulbs. I also read somewhere that I might have to replace the whole climate control component. Can you help?
Saturday, June 11th, 2016 AT 10:10 PM

22 Replies

Tiny
WRENCHTECH
  • MECHANIC
  • 20,757 POSTS
That most likely uses an LCD display that no longer works. That would mean replacing the whole control head.
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Sunday, June 12th, 2016 AT 5:34 AM
Tiny
JOSHUA STEVENS
  • MEMBER
  • 11 POSTS
Found out it was 15a fuse that was blown. My question now is it keeps blowing is there a place I can get a free schematic/wiring diagram of the int panel/dimmer circuit?
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Monday, June 13th, 2016 AT 12:58 PM
Tiny
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https://www.2carpros.com/images/external/155623454.gif
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Monday, June 13th, 2016 AT 1:23 PM
Tiny
JOSHUA STEVENS
  • MEMBER
  • 11 POSTS
Thank you. I am really confused though because in my car the only thing that 15a fuse controls that I can tell is the lights on climate control and the trunk light. The trunk light I dont even see on there. Am I looking at this wrong?
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Monday, June 13th, 2016 AT 5:48 PM
Tiny
WRENCHTECH
  • MECHANIC
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You asked for the diagram for the dash light circuit. What you really needed was the diagram for that particular fuse.
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Monday, June 13th, 2016 AT 5:51 PM
Tiny
JOSHUA STEVENS
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Sorry I thought that was what I needed
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Monday, June 13th, 2016 AT 5:58 PM
Tiny
WRENCHTECH
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Give me the fuse name or number and the location.
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Monday, June 13th, 2016 AT 6:00 PM
Tiny
JOSHUA STEVENS
  • MEMBER
  • 11 POSTS
15a interior lights and panel dimmer.
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Monday, June 13th, 2016 AT 6:05 PM
Tiny
WRENCHTECH
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That feed goes directly to the BCM and it takes it from there. Going to be hard to track.

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Monday, June 13th, 2016 AT 6:16 PM
Tiny
JOSHUA STEVENS
  • MEMBER
  • 11 POSTS
So basically I'll have to manually track the short down? Do you know a rough estimate to get a mechanic to do this? I dont have the patience for all that.
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Monday, June 13th, 2016 AT 6:23 PM
Tiny
WRENCHTECH
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They would work by the hour, usually at about $120 per hour around here. Make sure he's an electrical specialist though. Most general techs would struggle with this. They have no path to follow.
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Monday, June 13th, 2016 AT 6:29 PM
Tiny
JOSHUA STEVENS
  • MEMBER
  • 11 POSTS
Any chance you have the wiring diagram for the trunk light? Its grounded after the climate control lights and before the trunk light. I appreciate all your help btw.
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Monday, June 13th, 2016 AT 6:35 PM
Tiny
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There is no before and after. They are wired in parallel. The short could be from anything the BCM operates. If you suspect something, just unplug it and see if the fuse blows.
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Monday, June 13th, 2016 AT 6:43 PM
Tiny
JOSHUA STEVENS
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  • 11 POSTS
Oh, ok. Thank you. I will post what I find when I figure it out. Thanks again for the information.
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Monday, June 13th, 2016 AT 6:47 PM
Tiny
JOSHUA STEVENS
  • MEMBER
  • 11 POSTS
I got an ect2000 to track down the short and discovered it is on the orange wire of my dome light. I have some diagrams of the interior lights but I'm having a hard time reading them and I dont know which plug in the bcm they are connected to. All it says is X2/1 I get that that is connection 2 pin 1 but which is connection 2? Can you help me with this?
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Wednesday, July 13th, 2016 AT 7:59 PM
Tiny
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http://i1198.photobucket.com/albums/aa448/Wrenchtech/143364886.gif

https://www.2carpros.com/images/external/143369571.gif
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Thursday, July 14th, 2016 AT 2:26 AM
Tiny
JOSHUA STEVENS
  • MEMBER
  • 11 POSTS
Thank you for that. The wire I'm trying to trace is orange. I dont see an orange on there. Is there a splice somewhere that changes the wire color?
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Thursday, July 14th, 2016 AT 7:07 PM
Tiny
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Thursday, July 14th, 2016 AT 7:13 PM
Tiny
JOSHUA STEVENS
  • MEMBER
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That's the diagram I have. Do the connections go in order on bcm? Like you showed me x1 and it is lt gn so x2 would be the next one upso it would be a white connection? I need to isolate the circuit from the bcm and run further diagnostics to find the short to ground.
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Thursday, July 14th, 2016 AT 7:21 PM
Tiny
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http://i1198.photobucket.com/albums/aa448/Wrenchtech/78487904.gif

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Thursday, July 14th, 2016 AT 7:29 PM

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