LCI Trailair Sway Command Instrucciones de instalación

lci1.com 574-537-8900 CCD-0001441-AU Rev. 02.14.20

Sway Command®

(AU) BY TRAILAIR

Installation and Owner’s Manual

(For Aftermarket Applications)

Table of Contents

Introduction ..............................................2

Causes of Sway .........................................2

Parts List ..................................................2

Resources Required .....................................2

Installation ................................................3

Mounting Controller ......................................3

Sway Command Wiring ..................................4

Sway Command Light Pod Mounting . . . . . . . . . . . . . . . . . . . . 5

Sway Command Compatible Tow Vehicle Brake

Control Modules ..........................................6

Prior to Operation ........................................6

Sway Command Controller Operation . . . . . . . . . . . . . . . . . . 7

Light Codes and Troubleshooting ......................7

Notes ......................................................8

The use of Sway Command®

is only supported/allowed for

use on trailers meeting product

specications and trailers with

approved brake control modules

(BCMs) and integrated trailer brake

control modules (ITBCMs). See

trailer requirements and approved

BCM and ITBCM Lists at:

https://www.lci1.com/sway

• The Sway Command system installed on this trailer may be

incompatible with certain manufacturers’ brake controllers.

• Please refer to the website www.lci1.com/sway for the

most current list of brake controllers compatible with Sway

Command. Also, refer to your vehicle owner’s manual for

any further instructions on your vehicle’s brake controller

function.

• Failure to determine compatibility between your brake

controller, your tow vehicle and Sway Command may result

in the sudden loss of brake controller braking, which can

result in a loss of vehicle control and cause serious injury or

property damage.

• Do not submerge the controller. The Sway Command is not

designed to be submerged under water (Water Crossing).

Submersion will cause unwarrantable damage.

Sway Command®

(AU) BY TRAILAIR

Installation and

Owner’s Manual

(For Aftermarket Applications)

More information https://www.caravansplus.com.au

lci1.com 574-537-8900 CCD-0001441-AU Rev. 02.14.20

Sway Command®

(AU) BY TRAILAIR

Installation and Owner’s Manual

(For Aftermarket Applications)

Introduction

The Sway Command® Tow Control system is a self-

contained trailer stability control module that detects

undesirable trailer movement from external sensors and

mitigates it by adaptively applying a variable braking

voltage to the left and right trailer electric brakes. This

system is currently only for use on trailers.

The Sway Command® Tow Control system uses sensors

to detect excessive trailer sway. The system activates

automatically and applies voltage proportional to the

amount of sway detected to the electric trailer brakes.

This dampens the sway and slows the trailer down. When

excessive sway is detected, the light pod will blink red and

the tow vehicle operator may feel the trailer brakes activate

until the sway is dampened.

Causes of Sway

• When the tongue weight is less than 10% of the trailer’s

weight, it has a natural tendency to sway.

• Improper weight distribution hitch adjustments.

• Crosswinds.

• A transfer truck passing from the rear of the trailer.

• Descending inclines.

• Towing speeds.

• Tow vehicle not properly matched for the trailer.

• Improper loading, overloading and poor weight

distribution on the trailer.

• 

Parts List

ALWAYS INFLATE TIRES PER MANUFACTURER’S

SPECIFICATIONS. IN ADDITION TO CAUSING SWAY,

IMPROPER TIRE INFLATION MAY CAUSE PREMATURE

TIRE WEAR, POOR HANDLING, REDUCED FUEL

ECONOMY OR BLOWOUTS. CHECK TIRE INFLATION

WEEKLY WHILE THE TIRES ARE COLD BEFORE

OPERATION.

Letter Part# Description

380605 Sway Command Kit

(Includes 1 of A - E)

A 664935 Sway Command Controller

B 389951 Sway Command Main Harness

C 380597 Sway Command Light Pod

D 390066 Sway Command Light Pod

Extension Harness

E 671639 Sway Command Warning Sticker

NOTE: 

only. Not all parts are available for individual sale. All parts

with a link to the Lippert Store can be purchased.

Resources Required

• #12 x ¾” hex head screws (corrosion resistant) (4)

• #12 lock washers (corrosion resistant) (4)

• Cordless or electric drill or screw gun

• #8 x 1” square head wood screws (2)

• #8 - 18 x ¾” self-tapping hex head screws (2)

• Paint marker/grease pencil

• Appropriate drive bits

• Torpedo level

• 5⁄32” drill bit

NOTE: The Sway Command System is not a replacement

for using sway control bars when towing a trailer. Sway

control bars should be used in conjunction with the Sway

Command System.

More information https://www.caravansplus.com.au

lci1.com 574-537-8900 CCD-0001441-AU Rev. 02.14.20

Sway Command®

(AU) BY TRAILAIR

Installation and Owner’s Manual

(For Aftermarket Applications)

Installation

Mounting Controller

Never drill into the Sway Command controller or

compromise the pressure equalizer plug hole on the back

of the controller. Doing so voids the warranty and could

damage the controller.

NOTE: The Sway Command controller is water-resistant,

but not waterproof. Do not spray high pressure water

directly at the controller.

A. Align the top of the controller with the top of the

bracket, then center align the two items.

B. Place the bracket and controller on the side face of

the crossmember (Fig.2C) with the tops of the bracket and

controller aligned with the top of the crossmember.

C. The controller must be mounted with the orientation

(Fig.2A).

3. Make sure the controller is level (parallel) with the front

crossmember of the trailer frame.

A. Mark the screw hole locations on the protective

bracket (Fig.2D) using the controller as a template.

Fig.2

Fig.1

IF THE CONTROLLER IS FITTED TO A CHASSIS

SHORTER THAN 8” IN HEIGHT, A PROTECTIVE

BRACKET/SHIELD MUST BE FITTED TO PROTECT

THE CONTROLLER FROM DAMAGE THAT MAY BE

CAUSED BY EXCESS WATER SPRAY AND ROAD

DEBRIS. REFER TO FIG. 2.

NOTE: The controller must be mounted to a frame

crossmember between 4’ and 10’ behind the hitch point.

NOTE: The controller must be mounted in a level

condition, centered on the crossmember, and according to

the orientation arrow on the label (Fig.2A).

NOTE: The controller MUST be mounted facing the rear of

the trailer.

NOTE: The controller will not operate correctly if

mounted improperly.

1. Place the Sway Command warning sticker on the outside

of the A-frame of the trailer (Fig.1A).

2. Place the controller (Fig.2A) on top of the third party-

supplied protective bracket (Fig.2B).

B. Set the controller aside.

4. Using a drill with the 5⁄32” drill bit, drill pilot holes through

the bracket and crossmember at the four locations (Fig.2D)

made in step 3.

More information https://www.caravansplus.com.au

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Sway Command®

(AU) BY TRAILAIR

Installation and Owner’s Manual

(For Aftermarket Applications)

Fig.4

5. Using four #12 x ¾” screws with lock washers (Fig.2D),

attach the controller (Fig.2A) and protective bracket (Fig.2B)

to the crossmember (Fig.2C).

6. Make sure controller orientation is correct (Fig.3).

DIRECTION OF TRAVEL

Sway Command Wiring

1. Connect the Sway Command main wire harness (Fig.4A)

to the port on the Sway Command controller.

2. Connect the light pod extension harness (Fig.4B) to the

two-pin connector on the main harness.

3. Connect the loose wires (Fig.4C) on the main wire

harness as described in the following table.

NOTE: All wiring connections should be made at the trailer

junction box according to RVIA codes.

NOTE: LCI recommends the use of a 20A user-

replaceable/sealed fuse between the junction box

power connection and the black Sway Command

power connection.

Fig.3

Sway Command Wire Connection Gauge

2-Pin Connector Light Pod Extension Harness 

Light Pod Extension Harness Light Pod 

Black 12V DC from tow vehicle/breakaway battery 12 AWG

White   12 AWG

Blue Electric Brake wire from tow vehicle 12 AWG

More information https://www.caravansplus.com.au

lci1.com 574-537-8900 CCD-0001441-AU Rev. 02.14.20

Sway Command®

(AU) BY TRAILAIR

Installation and Owner’s Manual

(For Aftermarket Applications)

Sway Command Light Pod Mounting

The light pod should be mounted in a location that can be

easily seen by the tow vehicle operator. If the light pod is

mounted to the A-frame of the trailer (Fig.5), make sure it is

mounted on the driver’s side of the trailer for clear visibility.

Optionally, the light pod can be mounted to the outside,

front wall of the trailer (Fig.6) and positioned for visibility by

the tow vehicle operator.

NOTE: The light pod can be fastened to the A-frame at any

time, but can only be connected after the A-frame loom

has been routed.

Mounting the light pod on the A-frame:

1. Determine the proper mounting location for the light pod.

2. 

hole with two #8 - 18 x ¾” self-tapping screws (Fig.5A).

3. Connect the light pod to the extension harness (Fig.5B)

that was previously connected to the Sway Command

main harness.

NOTE: The light pod wiring and connection point

(Figs.5C and 6C) can be coiled into the cavity on the back

side of the light pod for a cleaner appearance if preferred.

Mounting the light pod on a trailer wall:

1. Determine the proper mounting location for the light pod.

2. Attach the light pod to the trailer wall with two #8 x 1”

square head wood screws (Fig.6A).

3. Connect the light pod to the extension harness (Fig.6B)

that was previously connected to the Sway Command

main harness.

4. Make sure all wall penetrations are sealed to prevent



Fig.5

Fig.6

A A

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lci1.com 574-537-8900 CCD-0001441-AU Rev. 02.14.20

Sway Command®

(AU) BY TRAILAIR

Installation and Owner’s Manual

(For Aftermarket Applications)

Sway Command Compatible

Tow Vehicle Brake Control

Modules

The tow vehicle brake control module (BCM) applies

brakes to the trailer when the tow operator presses on the

tow vehicle brake pedal or activates a manual switch on

the tow vehicle BCM. A tow vehicle BCM may be OEM

factory installed or an aftermarket install.

NOTE: LCI attempts to provide compatibility with

aftermarket BCMs and integrated trailer brake control

modules (ITBCMs) but is unable to anticipate design

changes by other manufacturers. LCI is continually testing

BCMs and ITBCMs and advises you to visit www.

lci1.com/sway for a complete and updated list as the

website listing is periodically revised as further testing

is completed and approved.

• The Sway Command system installed on this trailer may be

incompatible with certain manufacturers’ brake controllers.

• Please refer to the website www.lci1.com/sway for the most

current list of brake controllers compatible with

Sway Command. Also, refer to your vehicle owner’s manual

for any further instructions on your vehicle’s

brake controller function.

• Failure to determine compatibility between your brake

controller, your tow vehicle and Sway Command may result

in the sudden loss of brake controller braking, which can

result in a loss of vehicle control and cause serious injury or

property damage.

Prior to Operation

FAILURE TO FOLLOW THE GUIDELINES BELOW MAY

RESULT IN DEATH, SERIOUS PERSONAL INJURY, OR

PROPERTY DAMAGE.

1. Sway Command must be installed as detailed in the

Sway Command Installation section. Sway Command will

not operate correctly if improperly installed.

2. 

to ensure proper trailer braking. The tow operator

must ensure trailer brakes are properly adjusted. Sway

Command may not operate properly with improperly

adjusted brakes. Discuss brake adjustments with the

trailer OEM.

3. Trailer brakes must be burnished to ensure proper trailer

braking. New electric brakes may contain a coating to

prevent rust during shipping. An unburnished brake will

reduce trailer braking capacity. The tow vehicle operator

must ensure trailer brakes are properly burnished to

󰀨

Sway Command may not operate properly with improperly

burnished brakes. Discuss brake burnishing with the

trailer OEM.

4. Improperly adjusted tire pressure can reduce braking

󰀨

pressure must be adjusted to the tire manufacturer’s

recommended pressure.

5. Tires must have useful tread life left to ensure proper

braking. Tire tread below useful life could cause the trailer

to skid during braking. The tow operator must ensure tires

have useful tread left.

6. Improperly loaded trailers can be a source of sway. At

higher speeds, if the trailer naturally sways, the tongue

weight and/or trailer weight distribution must be adjusted.

Sway Command could activate frequently in this situation

causing excessive brake wear. Ensure proper hitch tongue

weights are observed for the trailer.

More information https://www.caravansplus.com.au

lci1.com 574-537-8900 CCD-0001441-AU Rev. 02.14.20

Sway Command®

(AU) BY TRAILAIR

Installation and Owner’s Manual

(For Aftermarket Applications)

7. The tow operator must ensure Sway Command is

operational by observing the Sway Command light pod

status. Ensure the light pod is illuminated green. See Sway

Command Status light for status other than green.

8. The operator should operate the tow vehicle as safely

as driving and weather conditions allow. Sway Command

relies on braking and tire grip to mitigate sway, and overall

󰀨

slippery/icy driving conditions.

Sway Command Controller

Operation

1. When Sway Command detects excessive sway, the light

pod will blink red and the tow operator may feel the trailer

brakes activate until the sway is dampened.

2. Sway Command will “wake up” if it senses external brake

activations. During wake up, Sway Command performs



green and red.

NOTE: The Sway Command light pod will be green if no

issues are detected. If an issue is detected, the light pod



See troubleshooting for a description of the various

blink codes.

3. Sway Command will enter a low power mode after 10

minutes when it senses no tow vehicle brake activation or

movement.

4. The Sway Command 󰀨

powers down.

Light Codes and

Troubleshooting

In the event a tow vehicle brake controller detects a fault

after Sway Command detects a sway event, manually

activate the tow vehicle brake controller a few times to

clear the fault.

Light Flash Why? What Should Be Done?

󰀨 Unit is not powered and not

active.

Unit is in low power. Activate tow vehicle brake to wake unit.

Unit is not connected to 12V DC power supply. Verify wiring.

Green, Red, Repeat Wake up self-checks in

progress.

After a few seconds, the unit will complete self-checks, and set



found.

Green Solid Unit is awake and monitoring

for sway.



󰀨

Red Blink (1/2 second

󰀨

repeats)

Sway Command detected

sway event and is activating

brakes.

After sway subsides, light will return to green.

Green, 2 Red A short to 12 volt detected. Verify the break away switch is not activated.

Verify blue brake wire not shorted to 12 volts.

Green, 3 Red Not connected to trailer

brakes. Verify the blue brake wire is connected to the trailer brakes.

Green, 4 Red A short to ground detected. Verify the blue brake wire is not shorted to ground or trailer

frame.

Green, 5 Red Low voltage detected. Verify tow vehicle and tow battery are at 12 volts.

Red Solid

Unit is not functional.

Disconnect harness, wait 10 seconds. Connect harness.

If light comes on solid red, unplug unit and contact service

department.



󰀨

repeats)

More information https://www.caravansplus.com.au

lci1.com 574-537-8900 CCD-0001441-AU Rev. 02.14.20

Sway Command®

(AU) BY TRAILAIR

Installation and Owner’s Manual

(For Aftermarket Applications)

Manual information may be distributed as a complete

document only, unless Lippert Components provides

explicit consent to distribute individual parts.

All manual information is subject to change without notice.

Revised editions will be available for free download at lci1.

com. Manual information is considered factual until made

obsolete by a revised version.

Please recycle all obsolete materials and contact Lippert

Components with concerns or questions.

Notes

More information https://www.caravansplus.com.au

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