Constant Power Cable

The Constant Power Cable is an always-on, 12V power adapter that connects to the OBD II port in your vehicle. The device can power up to two dash cameras for a selected length of time after you turn off your vehicle.

For more information, or to purchase a Constant Power Cable, go to garmin.com.

Getting Started

WARNING

When installing the device in a vehicle, you must install the device securely so it does not interfere with the vehicle operating controls, such as the foot pedals, or the driver's feet. Interference with the vehicle operating controls or feet can result in an accident, which could result in property damage, personal injury, or death.

WARNING

If you notice any change in engine performance after connecting the device, disconnect the device immediately and contact Garmin® product support. Do not use the device if it affects engine performance or acceleration in your particular make and model of vehicle. Issues with engine performance or acceleration could result in an accident, leading to property damage, personal injury, or death.

NOTICE

Defer to your vehicle's warranty provisions and owner's instructions for guidance on whether any OBD II connector product might void or alter your vehicle's warranty. Garmin is not responsible for any costs or expenses associated with vehicle repairs or voided warranties.

Installing the Device

  1. Set the time switch (Time Switch).
  2. Connect the device to the OBD II port in your vehicle.

    The OBD II port is usually located under the dashboard on the driver's side of the vehicle. The OBD II port location may vary depending on the make and model of your vehicle. See your vehicle owner's manual for more information.

  3. Remove the protective film from one reclosable fastener, and press the reclosable fastener firmly onto the USB port end of the device for 10 seconds.

    Reclosable fastener attaching to the USB ports
  4. Clean the vehicle mounting surface using water or alcohol, and a lint-free cloth.
  5. Allow the surface to dry completely.
  6. Remove the protective film from a second reclosable fastener, and press it firmly onto the vehicle mounting surface for 10 seconds.
  7. Press the reclosable fastener on the device against the reclosable fastener on the mounting surface to secure the device to the mounting location.

    USB ports connecting to a reclosable fastener
  8. Connect the USB power cable from your Garmin Dash Cam™ device to a USB port on the Constant Power Cable device.

Time Switch

The time switch Callout number 1 sets the length of time the device continues to supply power after you exit the vehicle. The device reenables power when it detects motion, or when you reenter and restart the vehicle.


Time switch location with a callout

10m

10 minutes

24h

24 hours

Infinity symbol

Always on

If you want the device to remain off until you reenter the vehicle, you should select the 10m option.

If you want the device to operate continuously while the vehicle is parked, you should select the 24h or Infinity symbol option.

Status LED

The status LED shows the device status.

Status LED Activity

Status

Red

The device is supplying power to the connected devices.

Flashing red

The timer has expired and the device is no longer supplying power to the connected devices.

Off

The device is receiving less than 12 V of power. The low battery protection feature turns off the device to protect the vehicle battery.

Specifications

Operating temperature

From -20° to 45°C (from -4° to 113°F)

Input

From 12 to 16 V, 1.6 A Max.

Output

5 Vdc, 1.5 A each (3.0 A total)

Low battery protection voltage

12 V

GUID-AA217031-2399-427F-9108-A3A429839BFE v1
September 2024