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Center high mount stop light is not working

Tiny
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That is not it.

X1 has a light blue wire close to that one.

X1, X4 and X6 have light blue wires.

Roy
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Friday, February 22nd, 2019 AT 1:57 PM
Tiny
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What do you mean by "close to that one"? I do see other light blue wires, but not in position 2.
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Friday, February 22nd, 2019 AT 2:02 PM
Tiny
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I don't have a diagram of the connectors for markings of the X. You will need to do an ohm check from the third light to the light blue wire. You may have to check the ones on the connectors that have light blue wires.

Roy
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Friday, February 22nd, 2019 AT 2:05 PM
Tiny
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Okay. The saga continues.
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Friday, February 22nd, 2019 AT 2:07 PM
Tiny
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Keep me updated.

Roy
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Friday, February 22nd, 2019 AT 2:08 PM
Tiny
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Will do. Need more time.
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Friday, February 22nd, 2019 AT 2:39 PM
Tiny
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Okay.

Roy
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Friday, February 22nd, 2019 AT 4:31 PM
Tiny
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Hey Roy! Are you available?
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Sunday, February 24th, 2019 AT 11:33 AM
Tiny
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Yes, I am here.

Roy
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Sunday, February 24th, 2019 AT 11:34 AM
Tiny
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Hi again. So, I was wrong, that wire was actually just a little different shade of blue. The diagram is accurate. I found a damaged wire and repaired it. Now with everything back together, I still have no power at that terminal number 2 leaving the BCM.
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Sunday, February 24th, 2019 AT 11:38 AM
Tiny
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Okay, if you found the wire from the BCM to the third light and repaired it and there is no power when the brake is applied, then the BCM is the issue.

Roy
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Sunday, February 24th, 2019 AT 11:43 AM
Tiny
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Okay, isn't odd that the only thing not working is that light considering all it controls?
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Sunday, February 24th, 2019 AT 11:45 AM
Tiny
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Yes, but that module controls about 100 things or more and if there was an issue with the wiring such as a ground on the power wire, it may have damaged the internal control circuit just for that section.

Roy
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Sunday, February 24th, 2019 AT 11:49 AM
Tiny
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I was hoping you wouldn't say that! It was a direct short.
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Sunday, February 24th, 2019 AT 11:50 AM
Tiny
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Now what?
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Sunday, February 24th, 2019 AT 11:50 AM
Tiny
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You need to replace the BCM and have it programmed to your truck. This is a module that must be programmed.

Roy
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Sunday, February 24th, 2019 AT 11:53 AM
Tiny
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Sounds expensive! I'll look into it. Thanks, Dan
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Sunday, February 24th, 2019 AT 11:54 AM
Tiny
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Found the part at rock auto.

Roy
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Sunday, February 24th, 2019 AT 11:55 AM
Tiny
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Thanks, but it's a 2500. Who does the programming? Dealership?
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Sunday, February 24th, 2019 AT 12:02 PM
Tiny
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Any shop with a Tech 2 scan tool. It can be any private shop and they will be much cheaper.

A dealer will be more than double a private shop.

Roy
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Sunday, February 24th, 2019 AT 12:15 PM

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