LCI Trailair Sway Command Installation instructions
1
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
specications 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
2
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.
C
E
D
B
A
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
3
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).
C
B
A
D
A
D
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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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)
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
B
A
C
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
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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 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
B
C
A A
C
B
More information https://www.caravansplus.com.au
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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
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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)
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
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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)
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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