Technical Troubleshooting Guide for BW7/BW7M Camera System

Are you experiencing issues with your BW7/BW7M backup camera system in your pre-wired RV? Don't worry, troubleshooting these systems can be straightforward with the right approach. Let's dive into some common problems and solutions to help you get your backup camera system up and running smoothly.

 

Why I continued to get "no signal"?

1. The camera is connected to the light but is not receiving power.

• Your RV/trailer's "pre-wired" camera lines aren’t getting power. Please turn on your tow vehicle’s headlights/running lights manually (don’t rely on "auto" mode). Due to Some pre-wired systems only send power to the camera when headlights/running lights are fully on (automatic settings may not activate them reliably).
• Check if your lights are in the Auto position and and turn it off of auto.
• Make sure you are hooked up to the trailer and lights on.
• Switch your truck lights to AUX.
• If still not working, please check: Fuse for the camera circuit and Ground wire connection

2.Unstable or low voltage

• Check the jack on the RV if is putting out less than 12 voits. The system needs to be at 12V+ for work. You can try to jump it with 12V.
• It is caused by the voltage supplied by the vehicle that has a PWM electrical system (e.g. Chevy and GMC) or TPIM system (e.g. RAM models)  for led lights being lower. Even though it read 12V+ on the meter, but the truck is not providing the needed power pulse to power the camera it Powers LED lights but not quite enough to power the camera. You can use an Furrion 7-way adapter or a 12V PWM Filter to solve the problem.  (The newer GM Truck or GMC or Chevy with LED brake lights need to be aware of this situation)
• German/American car series are prone to pulse signal interference, which can be solved by using a 12V DC power adapter filter rectifier.

3. The backup camera won't turn on, even with lights on. Check proper wiring to avoid loose and poor attachments and connections of wires, as this may affect the delivery of images.

• Check if reversed the polarity when installed the camera. Please make sure the red wire is connected to the positive on the running light, and black negative.
• It is also possible that a light that was wired incorrectly from the factory.  Please try to test the wiring on your trailer to check if it is wired incorrectly. If so please switch the wires to the camera and it will work fine.  

Here's how to fix it:
Find the connection:
Trace the camera wires to where they connect (usually near the left rear light)
Remove the light cover to see the wires
Swap just two wires:
Find the two main wires:
Power wire (usually red or with stripes)
Ground wire (usually black)
Switch their positions (what was connected to power now goes to ground, and vice versa)

• Check if the pre-wired Furrion outlet is wired wrong. 

4. Check if it turn out to be the connector. If the bayonet plug that came with the camera didn’t get power when plugged into the pre-wired Furrion female end or the connector mismatch. Please replaced it with the one in the box.

5. If your BW7 is working when connected to the monitor wire but not when connected to the rear of the trailer then you most likely have a power issue. The camera needs 12 volts to properly operate but the  light will activate with less voltage. Most likely the tow vehicle isn't putting enough voltage out to power the entire circuit (lights, camera, etc.) so the camera isn't getting enough voltage to actually operate and pair to the monitor correctly. You can check this with a multimeter at the camera.
To solve the power issue you'll need to splice in an adapter to provide a constant 12 volts. 

6. If the camera is only getting 8.5 volts then you're dealing with a voltage drop issue. BW7 camera systems require 12 volts to properly operate and since you're having issues when towing the camera is most likely tied into a light that's starting to pull too much power for the camera to work. You can either reroute the power to camera to increase the voltage to an appropriate level or add a Buck/Boost module or install the 12V DC power adapter filter rectifier  to provide a constant 12 volts to the camera system to allow it to properly operate. 

Important Notice for Ford, GMC, Chevrolet, and Dodge Owners:
Your vehicle may utilize Pulse Width Modulation (PWM) to control power delivery to electrical components, including rearview camera systems. This can sometimes cause compatibility issues, such as: Flickering video feed、Intermittent power to the camera、Failure to maintain a stable connection
Fix: We recommend trying a dedicated Furrion PWM Filter Adapter. This device is designed to stabilize the power supply by filtering the pulsed signal, which may resolve these issues and ensure reliable camera operation.

How do I know if the camera is receiving power?

Infrared Light Test
Cover camera sensor to check IR light activation
No IR lights → Check power source and wiring （Faulty power connection、 RV and other vehicles may have reversed polarity）
IR active/no signal → Re-pair devices

How to pair a camera with the monitor?

Please pair the camera in the following sequence：
1. Disconnect the power to the camera.
Keep the camera and monitor within 3 feet when pairing (In case there is not enough time to plug in the camera later)
2. Ensure the antennas of the cameras are mounted. ( This step is crucial for establishing a stable wireless connection between the two devices.)
Reconnect the monitor and turn it on.
3. Switch to the full screen (Not in full screen state, the menu button will not be able to operate.)
4. Access the menu and choose the PAIRING icon
5. The screen begins to count down
6. Power up to the camera during the count down（NOTE： Do not plug the camera into the power until the pairing count-down had already started.）
7. Wait for the pairing
8. Repeat the steps again if it is unsuccessful.

No Signal unless camera is moved to the front of the vehicle

1. Check if there is an issue with the center conductor of the antenna. Look at the camera/monitor to find if the antenna wire is off. Check if the antenna connector on the camera/monitor is loose.
2. Check voltage at the camera, as anything less than 12-volt can cause the transmitter not to transmit properly.
3. The camera system in the car is being interfered with and needs to check other devices transmitting on the 2.4g frequency like WIFI, Bluetooth, and other devices like tire management systems. Please get out of the populated areas that interference from lots of Bluetooth signals on the road near you.
4. Check proper wiring to avoid loose and poor attachments and connections of wires, as this may affect the delivery of images.
5. Check if the monitor power cord can stay connected to the cigarette lighter outlet.
6. Changing the angle of the antennas may improve it, keep the tip of the antenna as far away from metal objects as possible.
7. If it lose signal sometimes but comes back on,please spraying contact cleaner on antenna connection on camera.
8. Your vehicle body is blocking the signal (if the vehicle is made of aluminum, it is prone to this problem), please try to make the camera antenna reach up to the roofline of the trailer. At such times the camera can be mounted as high as possible on the trailer so that the signal goes over the roof of the car. Or use an antenna extension cable, depending on the length of the car, you need the right length of antenna extension cable.
9. If you have a GMC or Chevy 2019 or newer vehicle, you will need to order the Furrion 7-way adapter. (For example: 2022 Chevrolet 3500HD、2019 gmc at4、2024 Chevrolet 2500HD、2022 GMC Denali 2500、2022 gmc acadia and so on.)

Signal interference can also cause issues with your backup camera. Check for any sources of interference, such as other electronic devices or metal structures, that may be disrupting the signal. Ensuring a clear signal path can improve the overall performance of your camera system.

 

Issue with the camera signal interrupting when using your brake or turn signals

This type of problem is almost always caused by electrical interference—specifically, voltage fluctuations or noise from your vehicle’s electrical system when certain components (like brake lights or turn signals) draw power. This is especially common in RV, trailer, and truck installations where wiring runs are long and often share pathways.

🛠️ Solution Steps to Try:

1. Use a Dedicated Power Source

   • Connect the camera directly to a clean, stable power circuit (e.g., the battery via a fuse tap) rather than sharing power with brake or signal lights.

2. Install a Ferrite Core

   • Wrap the camera’s power cable through a ferrite noise suppressor core (choke) near the camera connection point. This helps block electrical interference.

3. Check Grounding

   • Ensure the camera and monitor are properly grounded to the vehicle chassis. A poor ground can make the system more susceptible to interference.

4. Use a Voltage Regulator or Capacitor

   • Installing a small 12V voltage stabilizer or capacitor near the camera power input can smooth out power fluctuations.

Check Power Supply

First things first, ensure that your BW7 backup camera system is receiving power. Check the power source and connections to make sure everything is properly connected. A lack of power can often be the culprit behind a non-functioning camera system.

Inspect Camera Placement

Another common issue with backup camera systems is improper camera placement. Make sure the camera is positioned correctly to provide the best view of your surroundings. Adjust the angle and height of the camera if needed to optimize its performance.

How to rotate the system?

If everything is backwards (the screen is showing in reverse), press and hold the △☼ button a few seconds can rotate the screen.

Do I must get the camera and monitor within 3ft?

No. Normally, this product is suitable for normal vehicles up to 49 feet. It is only recommended that the camera be within 3 feet of the screen when pairing, this distance is to allow you enough time to connect the camera power during the pairing countdown time.

 

We hope this troubleshooting guide has helped you resolve any issues you were facing with your BW7 RV backup camera. If you're still experiencing problems, don't hesitate to reach out to our customer support team:sales@uszeroxclub.com for further assistance. Happy monitoring!