VIOFO Hardwire Kit - HK4
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Product Information
Full details
The VIOFO HK4 ACC Hardwire Kit is designed for VIOFO dash cam users who need reliable, continuous power for 24-hour parking surveillance. Its key benefit is automatic switching between parking and normal recording modes while protecting your vehicle's battery. A notable caveat is that the required fuse taps for installation are sold separately.
All features
| Model Part Number | HK4 |
|---|---|
| Brand | VIOFO |
Extended Product Information
FAQs
What is the purpose of the low voltage protection?
The low voltage protection prevents the hardwire kit from draining your vehicle's battery too much. It automatically cuts power to the dash cam if the battery voltage drops below a preset level, ensuring you can still start your car.
Do I need to buy fuse taps separately?
Yes, the VIOFO HK4 ACC Hardwire Kit requires two fuse taps for installation, which are sold separately. You will need to purchase taps that match your vehicle's fuse types.
Can I use this hardwire kit with any dash cam?
No, this kit is specifically designed for and compatible only with certain VIOFO dash cam models, including A329, A229 Ultra, A229 Plus, A229 Pro, A119 Mini 2, A139 Pro, WM1, and T130. It is not compatible with other VIOFO models or other brands.
How do I select the correct low voltage cut-off value?
There is a small switch on the HK4 module that allows you to select from four different cut-off voltage levels (e.g., 12.2V, 12.4V, 14.4V, 14.6V). Consult your vehicle's battery specifications to choose the most appropriate setting.
What is the difference between the red and yellow wires?
The red wire connects to a constant (always on) power source in your fuse box, providing power for parking mode. The yellow wire connects to an ignition (ACC) source, which powers on when the car is turned on and powers off when the car is turned off, enabling normal recording mode and automatic switching.
What is the total length of the cable?
The VIOFO HK4 hardwire kit features a cable length of 13.1ft (4 meters), providing ample reach for most vehicle installations.
Troubleshooting
Dash cam not powering on in parking mode
Verify the red wire is connected to a constant (12V) power source. Check the selected low voltage cut-off setting and ensure the vehicle battery voltage is above this threshold. Ensure the fuse taps are securely seated.
Dash cam not switching to parking mode when engine is off
Confirm the yellow wire is correctly connected to an ignition (ACC) source that powers down when the engine is off. Check the fuse tap in the ACC slot.
Dash cam powers off unexpectedly during driving
Check the connection of the yellow ACC wire; it might be intermittently losing connection or connected to a circuit that powers down during driving (e.g., a delayed accessory power). Ensure the vehicle's voltage is stable.
Low voltage protection not engaging
Ensure the correct low voltage cut-off value is selected via the switch on the module. Verify the kit is receiving adequate power from the vehicle.
Dash cam shows error message related to power
Double-check all connections (red, yellow, black) and ensure they are secure and correct. Verify compatibility with your specific VIOFO dash cam model. Try a different fuse tap.
Pros and Cons
Pros
- Enables crucial 24/7 parking monitoring for security.
- Protects vehicle battery from over-discharge.
- Automated switching simplifies operation.
- Compatible with a wide range of vehicle voltage systems.
- Sufficient cable length for most installations.
Cons
- Fuse taps required for installation are not included.
- Only compatible with specific VIOFO dash cam models.
- Requires basic automotive wiring knowledge for installation.
- Installation involves accessing vehicle's fuse box.
Setup, Compatibility & Care
Compatibility:
The VIOFO HK4 ACC Hardwire Kit is specifically designed for the following VIOFO dash cam models: A329, A229 Ultra, A229 Plus, A229 Pro, A119 Mini 2, A139 Pro, WM1, and T130. It is *not* compatible with other VIOFO dash cam series.
Installation:
- Gather Materials: You will need the VIOFO HK4 kit and two appropriate fuse taps (sold separately) matching your vehicle's fuse types.
- Identify Power Sources: Locate a constant power source (red wire connection) and an ignition (ACC) power source (yellow wire connection) in your vehicle's fuse box. Consult your vehicle's manual if unsure.
- Connect Fuse Taps: Insert one fuse tap into the constant power slot and the other into the ACC power slot. Connect the corresponding red and yellow wires from the HK4 kit to these fuse taps.
- Ground Connection: Connect the black ground wire to a clean, unpainted metal surface on your vehicle's chassis.
- Connect to Dash Cam: Plug the USB connector from the HK4 kit into your compatible VIOFO dash cam.
- Select Cut-off Voltage: Use the small switch on the module to select the desired low voltage cut-off point (e.g., 12.2V, 12.4V, 14.4V, 14.6V) based on your vehicle's battery system.
Care:
- Keep the hardwire kit and its connections clean and dry.
- Periodically check connections for any signs of wear or damage.
- Ensure ventilation around the kit's module if it is located in an enclosed space.