Troubleshooting Red Flashing Light on the Curt Venturer Trailer Brake Controller # C74VV
Published 10/15/2018 >
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Question:
I determined there is no power coming through the blue wire from the controller, any ideas?
asked by: Ken
Expert Reply:
If you check out the picture that I attached you can see that your Curt Venturer Trailer Brake Controller # C74VV that you installed is detecting an overload or short on the brake circuit of your 2008 GMC Sierra.
The wiring adapter # C51515 that you also installed is the correct adapter so now we need to determine if the problem is on your Sierra or your trailer. If you have another trailer with brakes handy then you can simply hook up to that trailer and see if the same thing happens.
Whether you find that the short is on your pickup or your trailer the solution is the same; the damaged wiring causing the short or overload needs to be tracked down and fix. Check the wiring for your brake circuit for any places where it is pinched or damaged and replace with 10 gauge wire # 10-1-1. If you can't find any damaged wiring places then check the ground connections for your brake magnets as well.
Let me know if you are still having problems and I can help you troubleshoot further.

Product Page this Question was Asked From
Curt Venturer NEXT Trailer Brake Controller - Up to 3 Axles - Time Delayed
- Trailer Brake Controller
- Time Delayed Controller
- Electric
- Electric over Hydraulic
- Plug-In
- Under-Dash Box
- Under-Dash
- Up to 3 Axles
- LCD Display
- Single Trailer Only
- CURT
more information >
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Ken
10/15/2018
I determined there is no power coming through the blue wire from the controller, any ideas?