If you're dealing with a BW7 backup camera system that shows "No Signal" on the screen (camera does not connect to display). Let’s systematically diagnose the issue to resolve the "No Signal" error.
Step 1: Verify Power Supply
The BW7 camera can be wired to either:
Reverse lights (activates only in reverse gear), or
Running lights (requires lights to be manually turned on for power).
Some pre-wired systems only send power to the camera when headlights are fully on (automatic settings may not activate them reliably).
Action Items:
✅ Ensure the corresponding lights (reverse/running) are on when testing.
✅ Check for a red IR LED glow on the camera when covered (confirms power is reaching the camera).
✅Verify the camera is receiving power by ensuring your truck's lighting system is manually activated. If your lights are set to 'Auto' mode, turned it off of auto.
✅ If installed on a trailer:
Confirm the tow vehicle is properly connected and running lights are on.
Direct Power Test:
Bypass the Furrion mount and connect the camera directly to a stable 12V source (e.g., trailer battery).
Expected Outcome: If the camera works consistently, the Furrion mount is likely the issue.
Voltage Check:
Use a multimeter to verify the Furrion mount delivers a steady 12V output when powered.
Note: Voltage readings below 11V may cause operational failures.
PWM Compatibility Check(Critical for LED Lights):
Some vehicles use Pulse-Width Modulation (PWM) or TPIM for lights, which may not provide stable power.
Key Indicator: If your reverse/running lights are LED, they may use PWM.
Solution: Install a 12V PWM Filter (hardwired item, available on etrailer.com) or use a 7-Way Adapter. (Not included)
Step 2: Inspect Wiring & Connections
Examine all connections for corrosion, loose terminals, or damaged wires.
Pay special attention to ground connections (ensure contact with bare metal).
Camera Power: Use a multimeter to verify 12V at the camera’s power wire when lights are active.
If voltage is low or absent:
Check for blown fuses.
Test with a direct 12V power source (e.g., spare battery) to rule out wiring issues.
Step 3: Signal Transmission Evaluation
Primary Symptom: No image despite confirmed power.
Signal Range Test:
Ensure the camera and monitor are within 50 feet without major obstructions.
Temporary metal interference (e.g., other parked vehicles) can disrupt signals.
Frequency Interference Check:
Move the trailer to a different location to rule out environmental interference.
Turn off nearby wireless devices (Wi-Fi routers, Bluetooth gadgets).
Channel Verification:
Confirm the monitor is switch to the correct channel (default: CAM1).
Re-pair the devices if necessary (power cycle both units during pairing mode).
Re-Pair the Camera & Display
Cover the camera's sensor with your hand - do the infrared (IR) lights turn on?
If NO: This indicates the camera isn't receiving power. Please check:
The power connection is secure
The power source is turned on
There are no blown fuses in your vehicle's circuit
If IR Lights Work But No Connection:
Let's try re-pairing the camera:
1. Power off the camera.
2. Set the screen to single channel.
3. Navigate to Menu > Pairing and start the countdown.
4. Only during countdown: Power the camera back on.
(Delay here is a common cause of pairing failure.)
5. Wait for the connection confirmation
Step 4: Test for Defects
Camera: Power it directly with a 12V battery. If it still fails, the unit is likely faulty.
Display: Connect another power source to confirm the screen works.
If the issue persists after these tests, your camera may be defective. To expedite a replacement:
🔹 Contact ZEROXCLUB support with:
Your order number
Shipping address
Vehicle/trailer model year
Photos/videos of the issue (if possible)
We’re committed to resolving this for you.