GARMIN POWERSWITCH
Owner’s Manual
© 2021 Garmin Ltd. or its subsidiaries
All rights reserved. Under the copyright laws, this manual may not be copied, in whole or in part, without the written consent of Garmin. Garmin reserves the right to change or
improve its products and to make changes in the content of this manual without obligation to notify any person or organization of such changes or improvements. Go to
www.garmin.com for current updates and supplemental information concerning the use of this product.
Garmin
®
and the Garmin logo are trademarks of Garmin Ltd. or its subsidiaries, registered in the USA and other countries. Garmin PowerSwitch
is a trademark of Garmin Ltd. or its
subsidiaries. These trademarks may not be used without the express permission of Garmin.
The BLUETOOTH
®
word mark and logos are owned by the Bluetooth SIG, Inc., and any use of such name by Garmin is under license.
Table of Contents
Getting Started.................................1
Device Overview...................................... 2
Installation....................................... 2
Mounting Considerations....................... 2
Mounting the Device............................... 3
Opening the Front Cover........................ 4
Connecting Accessories........................ 5
Connecting a Control Input.................... 6
Connecting the Device to Vehicle
Power.......................................................7
Pairing and Setup.............................8
Pairing with a Garmin Navigation
Device...................................................... 8
Pairing with Your Smartphone............... 8
Pairing an Additional Garmin
PowerSwitch Device............................... 8
Garmin PowerSwitch App................. 9
Activating a Power Switch..................... 9
Turning Off All Switches......................... 9
Customizing a Button........................... 10
Assigning a Switch to a Control
Input.......................................................10
Adding a Custom Layout...................... 10
Routines................................................ 11
Device Maintenance....................... 12
Garmin Support Center.........................12
Device Care........................................... 12
Changing the Fuse in the Vehicle Power
Cable......................................................13
Updating Device Firmware................... 13
Restoring Device Settings.................... 13
Troubleshooting.............................14
My Garmin PowerSwitch will not stay
connected............................................. 14
My accessories are not receiving
power..................................................... 14
Can I mount the device in an engine
compartment?...................................... 14
Can the device get wet?....................... 14
Device Information......................... 14
Garmin PowerSwitch Specifications... 14
Index..............................................15
Table of Contents i
Getting Started
WARNING
See the Important Safety and Product Information guide in the product box for product warnings and other
important information.
CAUTION
Garmin
®
strongly recommends having an experienced installer with proper knowledge of electrical systems
install the device. Incorrectly wiring the power cables can result in damage to the device, the vehicle, or the
battery, and can cause bodily injury.
NOTICE
Disconnect the negative battery terminal in the vehicle before installing the device to prevent an electrical short
circuit. Reconnect the vehicle battery terminals only after installation is complete.
1 Mount the device (Mounting Considerations, page 2).
2 Connect accessories to the device (Connecting Accessories, page 5).
3 Connect a control input (optional) (Connecting a Control Input, page 6).
4 Connect the device to vehicle power (Connecting the Device to Vehicle Power, page 7).
5 Pair your device with a compatible Garmin navigation device (Pairing with a Garmin Navigation Device,
page 8) or a smartphone (Pairing with Your Smartphone, page 8).
Getting Started 1
Device Overview
Accessory switches
Cover latch
Pairing button
Accessory terminals with #8-32 screws
Control terminals with #8-32 screws
+12V terminal
Device ground terminal (GND)
Installation
Mounting Considerations
The device must be mounted close to the battery and within the range of the supplied power cable.
The mounting surface must be strong enough to support the weight of the device.
The location must allow room for the routing and connection of all cables.
2 Installation
Mounting the Device
Before you can mount the device, you must select a mounting location and purchase the appropriate hardware
for your mounting surface.
NOTICE
Avoid wires, gauges, air bags, air bag covers, HVAC, and other items when drilling pilot holes and attaching the
mount to the vehicle. Garmin is not responsible for any damages or consequences arising from the installation.
1 Place the mount on the selected location.
2 Using the mount as a template, mark the two screw locations .
3 Drill pilot holes (optional).
For some types of mounting material, drilling pilot holes is necessary. Do not drill through the mount.
4 Securely fasten the mount to the surface using the appropriate hardware for your mounting surface.
Installation 3
Opening the Front Cover
You must open the front cover to make electrical connections.
1 Lift the front cover latch and rotate it counter-clockwise.
2 Pull the front cover off of the device.
4 Installation
Connecting Accessories
NOTICE
Do not use the device to control or power a winch. Failure to follow this notice could cause damage to your
vehicle or your device.
Do not connect a power source to an accessory output terminal. Failure to follow this notice could cause
damage to your vehicle or your device.
Accessory requirements:
Verify the amperage rating of each accessory before wiring it to the Garmin PowerSwitch device. The device
supports accessories up to 30 A for each channel and a maximum of 100 A for the entire system.
Use 10 AWG (6 mm
2
) wires for accessories that use 20 to 30 A.
Use 12 AWG (4 mm
2
) wires for accessories that use 10 to 20 A.
Use 14 AWG (2.5 mm
2
) wires for accessories that use less than 10 A.
Use the appropriate size terminals for all accessory connections.
Crimp all terminal connectors securely.
1 Connect the positive wire from the accessory to one of the accessory terminals on the Garmin
PowerSwitch device.
2 Connect the negative or ground wire to an unpainted ground stud on the vehicle frame, to a ground
distribution block, or directly to the negative terminal on the battery.
Installation 5
NOTICE
Do not connect the accessory ground wires to the ground terminal (GND) on the Garmin PowerSwitch
device. Failure to heed this notice could result in personal or property damage, or negatively impact device
functionality.
3 Verify that all electrical connections are tight and will not come loose during use.
Electrical Circuit Protections
The Garmin PowerSwitch device limits the amount of electrical current for each output terminal. If a single
output exceeds 30 A, the device turns off that output automatically. If the device detects a total system load of
more than 100 A, the device turns off all outputs automatically.
Connecting a Control Input
You can connect to the control terminals to enable the Garmin PowerSwitch device to turn on customizable
outputs. For example, you can connect your vehicle ignition switch to a control input terminal to turn on
accessories automatically each time you start your vehicle. The control terminals detect a signal from 3.3 V to
18 V. You can configure output functions with the Garmin PowerSwitch app.
Connect the control wire from the control source in your vehicle to one of the two control terminals on the
Garmin PowerSwitch device.
6 Installation
Connecting the Device to Vehicle Power
Before you can connect the device to vehicle power, you must remove the warning tag from the +12V terminal
on the device.
You should always confirm all electrical connections are secure and will not come loose while operating the
device.
1 Connect the large ring end of the included ground wire to the negative terminal on the vehicle battery.
2 Connect the small ring end of the ground wire to the GND terminal on the device.
3 Connect the small ring end of the included 12V cable to the +12V terminal on the device.
4 Tighten the
3
/
8
in. nut on the +12V terminal to a maximum torque specification of 4.52 N-m (40 lbf-in.).
You should confirm the nut cannot be loosened by hand.
NOTICE
Do not overtighten the +12V terminal to prevent damage to the terminal.
5 Connect the large ring end of the 12V cable to the positive terminal on the vehicle battery.
Installation 7
Pairing and Setup
Pairing with a Garmin Navigation Device
You can pair your Garmin PowerSwitch device with a compatible Garmin navigation device.
1 Turn on power to your Garmin PowerSwitch device, and place your compatible Garmin navigation device
within 1 m (3.3 ft.) of it.
2 On your compatible navigation device, open the Garmin PowerSwitch app.
3 Follow the on-screen instructions to complete the pairing and setup process.
The main app dashboard appears. After the devices are paired, they connect automatically when they are
turned on and within range.
Pairing with Your Smartphone
You can pair your Garmin PowerSwitch device with your smartphone and the Garmin PowerSwitch app to
enable wireless digital switching.
1 From the app store on your smartphone, install the Garmin PowerSwitch app.
2 Turn on power to your Garmin PowerSwitch device, and place your smartphone within 1 m (3.3 ft.) of your
device.
3 On your smartphone, open the Garmin PowerSwitch app.
4 Follow the on-screen instructions to complete the pairing and setup process.
The main app dashboard appears. After the devices are paired, they connect automatically when they are
turned on and within range.
Pairing an Additional Garmin PowerSwitch Device
You can pair up to four Garmin PowerSwitch devices with your smartphone or navigation device.
1 From the Garmin PowerSwitch app, select Settings > Add Another Device.
2 Follow the on-screen instructions to complete the pairing and setup process.
8 Pairing and Setup
Garmin PowerSwitch App
Settings
Opens the app settings menu
Edit
Enters editing mode to customize the app layout and functions
Off
Turns off all outputs
Power buttons
Activates each connected output
Displays input voltage
Displays the total amperage of the selected Garmin PowerSwitch device
Displays the device name
Displays Garmin PowerSwitch device tabs and custom layout tabs
Activating a Power Switch
Before you can use the Garmin PowerSwitch app to activate a switch, you must install your Garmin
PowerSwitch device in your vehicle and pair it with the Garmin PowerSwitch app.
From the Garmin PowerSwitch app, select a power button to turn a switch on or off.
Turning Off All Switches
Select Off.
Garmin PowerSwitch App 9
Customizing a Button
1 From the Garmin PowerSwitch app screen, select Edit.
The app enters editing mode.
2 Select on the button you want to customize.
3 Select an option:
To change the name of the button, select the Button Label field, and enter a name.
To add an icon to the button, select the Icon field, and select an icon.
To change the button color, select a color.
To change the button mode, select a button mode.
To adjust the intensity of the switch, use the slider.
To set the button to activate with a control input, select a control input.
4 Select .
5 Select Done.
Assigning a Switch to a Control Input
Before you can use control input functions, you must connect a control input to your Garmin PowerSwitch
device (Connecting a Control Input, page 6).
You can assign one or more switches to turn on when the Garmin PowerSwitch device receives a signal from a
control input.
1 Select Settings.
2 Select your Garmin PowerSwitch device.
3 Select a control input.
4 Select one or more switches.
Adding a Custom Layout
You can add a custom layout tab to the Garmin PowerSwitch app. Buttons added to a custom layout can
control multiple switches at the same time.
1 From the Garmin PowerSwitch app, select Edit.
The device enters editing mode.
2 Select .
10 Garmin PowerSwitch App
Adding a Button to a Custom Layout
1 From the Garmin PowerSwitch app, select a custom layout tab.
2 Select Edit.
The app enters editing mode.
3 Select Add Button.
4 On the new button, select .
5 Select an option:
To change the name of the button, select the Button Label field, and enter a name.
To add an icon to the button, select the Icon field, and select an icon.
To change the button color, select a color.
6 Select Add Action.
7 If necessary, select a Garmin PowerSwitch device and a switch.
8 Select an action:
To set the button to turn the switch on or off with each press, select Toggle.
To set the button to turn on the switch, select Turn On.
To set the button to turn off the switch, select Turn Off.
9 Select a button mode:
To set the button to activate with one touch, select Normal.
To set the button to activate only while touching the button, select Momentary.
To set the button to turn on and off repeatedly, select Strobe, and select time intervals.
10 If applicable, use the slider to set the brightness of lights.
11 Select .
12 If necessary, select Add Action to add additional actions for the button.
You can add one action for every switch on the Garmin PowerSwitch device.
Arranging Buttons In a Custom Layout
1 From the Garmin PowerSwitch app, select a custom layout tab.
2 Select Edit.
The app enters editing mode.
3 On the button you want to move, hold , and drag the button to a new location.
Deleting a Custom Layout or Button
1 From the Garmin PowerSwitch app, select a custom layout tab.
2 Select Edit.
The app enters editing mode.
3 Select an option:
To delete a button, select on the button you want to delete.
To delete a layout tab, select on the layout tab.
Routines
Routines automate your Garmin PowerSwitch device. When you define a routine on your compatible Garmin
navigation device, it turns switches on or off automatically when the conditions of the routine are met. For
example, you can set a routine to turn on a switch at specific time each day or when your vehicle reaches a
specific speed. Routines are available only when using a compatible Garmin navigation device.
Garmin PowerSwitch App 11
Adding a Routine
1 From the Garmin PowerSwitch app, select > Routines.
2 If necessary, select Add Routine.
3 Select When.
4 Select a trigger:
To set a switch to trigger when your vehicle reaches a specific speed, select Speed > Next, and follow the
on-screen instructions to enter speed thresholds.
To set a switch to trigger at a specific time each day, select Time > Next, and enter a time.
To set a switch to trigger at sunrise, select Sunrise.
To set a switch to trigger at sunset, select Sunset.
5 Select Add Action.
6 Select a device, a switch, an action, and a button mode.
7 If necessary, use the slider to adjust the dimmer.
8 Select Save.
Editing a Routine
1 From the Garmin PowerSwitch app, select > Routines.
2 Select on the routine you want to edit.
3 Select an option:
To change the trigger for the routine, select When, and select a trigger.
To change an action, select on the action you want to change, and update the action.
To add an action to the routine, select Add Action, and enter information about the action.
4 Select Save.
Deleting a Routine
1 From the Garmin PowerSwitch app, select > Routines.
2 Select on the routine you want to delete.
Device Maintenance
Garmin Support Center
Go to support.garmin.com for help and information, such as product manuals, frequently asked questions,
videos, and customer support.
Device Care
NOTICE
Avoid extreme shock and harsh treatment, because it can degrade the life of the product.
Do not use a sharp object to clean the device.
Avoid chemical cleaners, solvents, and insect repellents that can damage plastic components and finishes.
Do not store the device where prolonged exposure to extreme temperatures can occur, because it can cause
permanent damage.
12 Device Maintenance
Cleaning the Outer Casing
NOTICE
Avoid chemical cleaners and solvents that can damage plastic components.
1 Clean the outer casing of the device using a cloth dampened with a mild detergent solution.
2 Wipe the device dry.
Changing the Fuse in the Vehicle Power Cable
NOTICE
When replacing the fuse, do not lose any of the small pieces and make sure they are put back in the proper
position. The vehicle power cable does not work unless it is assembled correctly.
If your device does not receive power in your vehicle, you may need to replace the fuse located on the red
power cable.
1 Pull up the top cover from the top of the in-line fuse assembly.
2 Using an 8 mm (
5
/
16
in.) wrench, remove the two nuts that secure the two parts of the power cable to
the in-line fuse assembly.
3 Disconnect the power cables.
4 Remove the fuse from the bottom cover .
5 Place a new 125 A fuse on the bottom cover.
6 Reinstall the power cables and nuts.
7 Tighten the nuts to a maximum torque specification of 2.26 N-m (20 lbf-in.).
8 Reinstall the top cover.
Updating Device Firmware
The Garmin PowerSwitch app notifies you when firmware updates for your Garmin PowerSwitch device are
ready to install.
When the update notification appears, follow the on-screen instructions to complete the update process.
NOTE: Do not disconnect power during the update process.
Restoring Device Settings
The Garmin PowerSwitch app enables you to reset the device to the factory default values.
1 From the Garmin PowerSwitch app, select Settings.
2 Select a Garmin PowerSwitch device.
3 Select Restore Defaults.
Device Maintenance 13
Troubleshooting
My Garmin PowerSwitch will not stay connected
Verify the Garmin PowerSwitch device is receiving power.
Verify that Bluetooth
®
technology is enabled on your paired navigation device or smartphone.
Move the navigation device or smartphone closer to your Garmin PowerSwitch device.
Verify that your vehicle's battery is supplying at least 12 V of power.
The Garmin PowerSwitch device turns off all outputs automatically to preserve your vehicle's battery if it is
receiving less than 11 V of power (My accessories are not receiving power, page 14).
My accessories are not receiving power
Verify the Garmin PowerSwitch device is receiving power from the vehicle battery.
Verify that your vehicle's battery is supplying at least 12 V of power.
The Garmin PowerSwitch device turns off all outputs automatically to preserve your vehicle's battery if it is
receiving less than 11 V of power. Outputs turn back on when the device detects more than 12 V of power.
Verify that all electrical connections are secure and will not come loose while operating the vehicle.
Verify that each connected accessory draws less than 30 A.
If an accessory draws more than 30 A, the device turns off that output automatically.
Verify that the total system load is less than 100 A.
If the device detects a system load of more than 100 A, it turns off all outputs automatically.
Inspect all electrical connections for an electrical short circuit.
Can I mount the device in an engine compartment?
You can mount the device in an engine compartment as long as the temperature of the engine compartment
does not exceed 85°C (185°F) . Do not mount the device near a turbocharger or an exhaust manifold.
Can the device get wet?
The device is designed to operate in wet conditions, and it can be submerged for limited periods of time.
Always operate the device in accordance with the water rating listed in the device specifications (Garmin
PowerSwitch Specifications, page 14). Submerging the device in water for prolonged periods of time may
cause corrosion on the electrical contacts.
Device Information
Garmin PowerSwitch Specifications
Dimensions (D x W x H) 75 x 125 x 32 mm (2.95 x 4.92 x 1.26 in.)
Operating temperature range From -25° to 85°C (from -13° to 185°F)
Wireless frequency 2.4 GHz @ 10 dBm
Power input From 12 to 16 V using the included vehicle power cable.
Maximum accessory output 30 A
Maximum system output 100 A
Current draw with all outputs off 3 mA
Water rating IEC 60529 IPX7
1
1
The device withstands incidental exposure to water of up to 1 m for up to 30 min. For more information, go to www.garmin.com/waterrating.
14 Troubleshooting
Index
A
app overview 9
C
cleaning the device 12
control input 10
current limits 6
D
device, cleaning 13
F
fuse, changing 13
M
mounting the device 3–7, 14
P
pairing 8
phone 8
phone, pairing 8
power cables
changing the fuse 13
vehicle 5–7
power switch 9
customizing 10–12
R
resetting the device 13
S
smartphone features, connecting 8
software, updating 13
specifications 14
T
troubleshooting 13, 14
V
vehicle power cable 7
Index 15
support.garmin.com
GUID-B958A516-72E8-47CA-8793-6337D398EC08 v2April 2021