Camera stops when engine is off

The yellow ACC wire senses ignition status to switch between driving and parking mode. If the mode doesn’t change, ensure the ACC wire is connected to an ignition-triggered circuit and parking mode is enabled on the menu.

Camera stops unexpectedly during parking mode

This usually occurs if the battery reaches low-voltage cutoff or the parking timer ends.

Camera keeps recording after turning off the engine

Confirm the ACC wire is correctly connected to an accessory circuit (not constant power).

How to install the dash cam hardwire kit?

Connect the red wire to a constant power source using a fuse tap. Connect the yellow wire to a circuit that only has power when the ignition is on (ACC). Securely ground the black wire to an unpainted metal point.

Does hardwire cable have low voltage protection function?

Yes, the hardwire kit features built-in low-voltage protection. It automatically cuts power to the dash cam when your vehicle's battery drops to 11.8V (for 12V systems) or 24.8V (for 24V systems), preventing battery drain.

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VIOFO HK4 Acc Hardwire Cable, USB-C Hard Wire Cable for A229/A229 Ultra/A329 Series, WM1, T130, A119 mini 2 Dash Cam, Low Voltage Protection for Parking Mode (Fuses need to be purchased additionally)

VIOFO HK4 Acc Hardwire Cable, USB-C Hard Wire Cable for A229/A229 Ultra/A329 Series, WM1, T130, A119 mini 2 Dash Cam, Low Voltage Protection for Parking Mode (Fuses need to be purchased additionally)

Product ID: 431837156

Details

Brand
VIOFO
Colour
Black
Connectivity technology
USB
Field of view
140 Degrees
Included components
Cigarette Kit
Model name
HK4

⚡Low voltage battery guard

🔋24/7 parking power

🔌Universal 12/24V compatibility

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¥8835

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Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔒 Power your peace of mind—24/7 dash cam protection made effortless!

SMART LOW VOLTAGE PROTECTION - Safeguard your car battery by automatically cutting power when voltage drops to preset levels—no more dead batteries.
UNINTERRUPTED 24 7 SURVEILLANCE - Keep your vehicle protected day and night with continuous power to your dash cam, even when the engine is off.
UNIVERSAL VEHICLE COMPATIBILITY - Works flawlessly with cars, trucks, SUVs, and big rigs running 12V or 24V systems—one kit fits all your rides.
SEAMLESS PARKING MODE ACTIVATION - Automatically switches your dash cam to parking mode when the engine is off, so you never miss a moment.
CLEAN PROFESSIONAL INSTALLATION - 13.1ft cable with ACC detection and ground wiring ensures a tidy setup that keeps your dash cam powered without clutter.

The VIOFO HK4 ACC Hardwire Kit delivers continuous power to compatible dash cams (A229/A329 series, WM1, T130, A119 mini 2) for 24-hour parking surveillance. Featuring low voltage protection with four cut-off options, it prevents battery drain by automatically stopping power when voltage is low. The kit supports both 12V and 24V vehicles, enabling automatic parking mode activation via ACC detection. With a 13.1ft cable and professional-grade wiring, it ensures a clean, reliable installation. Note: Fuse taps are required but sold separately.

Specifications

ASIN	B09MRVP2PX
Are Batteries Included?	No
Auto Part Orientation	Drivers Side
Auto Part Position	Rear
Best Sellers Rank	2,339 in Electronics & Photo ( See Top 100 in Electronics & Photo ) 39 in Car On-Dash Mounted Cameras
Box Contents	Cigarette Lighter, Hardwire Kit
Brand Name	VIOFO
Colour	Black
Compatible Devices	Vehicle, dash cam (VIOFO A329/A229Plus/A229Pro/A119Mini 2/A139Pro/WM1/T130)
Compatible with Vehicle Type	Car
Connectivity Technology	USB
Country of Origin	China
Customer Reviews	4.3 4.3 out of 5 stars (1,154)
Field of View	140 Degrees
Frame Rate	30 FPS
Item Dimensions D x W x H	7D x 14W x 11H centimetres
Item Weight	0.15 Kilograms
Manufacturer	VIOFO
Manufacturer Part Number	HK4
Model Name	HK4
Model Number	HK4
Mounting Type	Dashboard Mount
Other Special Features of the Product	Night Vision, Parking Monitor
Product Warranty	1 Year
Real Angle of View	140 Degrees
Screen Size	2.7 Inches
Unit Count	1.0 count
Video Capture Resolution	1080p

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