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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HK4 Hardwire Kit with 8pcs Full Set Circuit Fuse Tap, Type-C Port, for A329 series/A229 series/A119Mini2/A139Pro/WM1/T130 Dash Cam

HK4 Hardwire Kit with 8pcs Full Set Circuit Fuse Tap, Type-C Port, for A329 series/A229 series/A119Mini2/A139Pro/WM1/T130 Dash Cam

Product ID: 602559415

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Details

Brand
VIOFO
Model Name
HK4
Vehicle Service Type
Car Truck Van
Connectivity Technology
USB Type-C
Special Feature
Low Voltage 24
Video Capture Resolution
1080p

⚡Low voltage cut-off

🔋24h parking power

🔌Type-C port & 13ft cable

Description

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

SMART BATTERY PROTECTION - Customizable low voltage cut-off safeguards your vehicle battery from draining.
SEAMLESS AUTO PARKING MODE - ACC detection automatically switches your dash cam to parking mode when you park.
COMPLETE FUSE TAP KIT INCLUDED - 8-piece fuse tap set ensures easy, professional-grade installation with Type-C convenience.
UNIVERSAL 12 24 V COMPATIBILITY - Works flawlessly with cars, trucks, SUVs, and big rigs—power your dash cam anywhere.
UNINTERRUPTED 24 7 SURVEILLANCE - Keep your dash cam recording even when your engine is off—never miss a moment in parking mode.

The VIOFO HK4 Hardwire Kit delivers continuous power to compatible VIOFO dash cams with a 13ft cable and Type-C port, enabling 24-hour parking surveillance. Featuring low voltage protection with four cut-off settings, automatic parking mode switching via ACC detection, and compatibility with 12V and 24V vehicles, it includes an 8-piece fuse tap set for professional installation. Ideal for millennial professionals seeking reliable, always-on dash cam security without battery drain.

Specifications

Brand	VIOFO
Manufacturer	VIOFO
Model	HK4
Model Name	HK4
Package Dimensions	12.7 x 9.3 x 5.1 cm; 230 g
Item model number	HK4
Compatible Devices	VIOFO A329 series, A229 series, A119Mini2, A139Pro, WM1, T130
Special Features	Low Voltage Protection, 24 Hours Parking Surveillance, Automatically switch parking mode
Mounting Hardware	dash cam
Number of items	1
Video Capture Resolution	1080p
Batteries Included	No
Batteries Required	No
Type of cable or wire	USB
Connector Type	USB Type-C
Material	Metal
Mounting Type	Through-Hole Mount
Manufacturer	VIOFO
Country of Origin	China
Item Weight	230 g

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