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2018 Chevrolet Silverado Park Sense


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mmcdan0342 
Member - Posts: 11
Member spacespace
Joined: April 26, 2010
Location: Colorado, United States
Posted: February 13, 2019 at 11:11 AM / IP Logged Link to Post Post Reply Quote mmcdan0342
I have been able to find info on everything I need for this Silverado 2500HD *except* for the park sense wire. I am wiring up a relay to activate only when the truck is in park. I am about to go in and start testing wires, but I thought maybe someone might already know where to locate the Park Sense wire and what polarity it is.
If I find out what it is before someone posts it in here I will update with the wire I found. Thanks in advance!
Ween 
Platinum - Posts: 1,355
Platinum spacespace
Joined: August 01, 2004
Location: Illinois, United States
Posted: February 13, 2019 at 7:13 PM / IP Logged Link to Post Post Reply Quote Ween
https://www.gmupfitter.com/files/media/photo/836/18_Sierra_Body_Builder_2017AUG31.pdf
Pages 162-164, 174, 872.
mmcdan0342 
Member - Posts: 11
Member spacespace
Joined: April 26, 2010
Location: Colorado, United States
Posted: February 14, 2019 at 9:44 AM / IP Logged Link to Post Post Reply Quote mmcdan0342
Yellow/White on the grey BCM plug (Sends + signal when truck is in park)! Thanks for the body builder manual link (I actually downloaded that yesterday before checking in on this for replies). It also helped me verify the Horn Switch wire (I needed the green/white wire from the horn switch to the BCM, not the brown/white one from the BCM to the RKE that Directechs uses).   Anywho, I took a pic of the wire to add to the collection on here - maybe I'll have time to post it later.

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