How To Fix Check Trailer Rear Lamp Message On 2022 Chevy/GMC with Tailgate Light Bar
Updated 11/11/2024 | Published 06/25/2022
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Question:
Hooked a light bar under the tailgate used the T- connector 7 pin to 4 pin , to trailer tow package.All connected works great But every time you press on the brakes, it says- Check Trailer Rear Lamp- and goes away when you release the brake on the instrument panel.
asked by: Victor B
Expert Reply:
I do have an option for you but this due to the internal computers and programs on the truck which can't be bypassed. That said, you can trick them and for this I recommend purchasing an adapter like the 7-Way RV to 4-Way Flat Trailer Connector Adapter part # HM47365 and then using load resistors like the LED Load Resistor Kit part # DI34ZR. This will simulate a full load on the truck tail light circuits.
Product Page this Question was Asked From
7-Way RV to 4-Way Flat Trailer Connector Adapter
- Custom Fit Vehicle Wiring
- Wiring Adapters
- Universal Fit
- 7 Blade to 4 Flat
- Plug and Lead
- Hopkins
more information >
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on Custom Fit Vehicle Wiring
Matt T.
11/10/2024
Ca. Warranty or something do something to the computer to stop it? I have the same issue. Seems like it start on a rainy day