Having problems with your 2005 Chevrolet Colorado ?
Identifying color coded wires for trailer hookup
\015 Matching vehicle wiring to 7-way trailer wiring connector.\015
Get a cheap 12 volt test ($6 any parts store) light and have someone operate the different lights while u proble the wires, when the test light illuminates you tag that wire for what circuit was activated, brake, running, turn etc.
Just go to autozone and buy the trailor wiring harness for 17 dollars. it plugs into the factory harness, and gives you a four flat plug. simple. done.
Repair Help & Product Troubleshooting for 2005 Chevrolet Colorado
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