Installing Trailer Brake Controller on 2014 Chevy 4500 Chassis
Updated 09/02/2024 | Published 08/26/2019
Question:
I have on a motor home on a classc chev.4500 chasis with a 6.0 motor. Which wiring harness should I use for a tekonsha brake controller.
asked by: Roy L
Helpful Expert Reply:
If your 2014 Chevy 4500 chassis is equipped with the factory 7-Way connector then the needed brake controller wiring is already ran to the cab but there isn't an actual plug present to use with a plug-in brake controller adapter. In order to install your Tekonsha brake controller such as the Prodigy P2 # 90885 you will just need to connect the wiring pigtail on the controller to the existing wires under the dash.
Some models of the 4500 will have these wires under the dash near the emergency brake pedal but others have it taped and tucked under the driver side floor mat, up towards the firewall.
The factory wires should be labeled for function but if not you can test them with a circuit tester before making the connections. On the Tekonsha brake controller the blue wire is for brake output to the 7-Way, the red wire is for brake input from the brake switch, the black wire is for 12V power, and the white wire is for ground.
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Mike L.
8/29/2024
Hi. Mine doesn’t have either that you stated. The motorhome was supplied with the wiring harness but still can’t find where to connect. One side has a single large connector and the other side has two separate smaller connectors one with 2 wires and the other one has two wires. Any idea? Any help would be appreciated.