Rev: 09.17.2015
Page 7
Sway Command™ OEM Install Manual
Light Flash Why? What Should Be Done?
Off
Unit is not powered and not
active.
Unit is in low power. Activate tow vehicle
brake to wake unit.
Unit is not connected to DC 12V 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 the lights green if unit
is ready, or a flashing code if an issue is
found.
Green Solid
Unit is awake and monitoring for
sway.
Every 5 seconds, there will be a brief time
the Green LED turns off for a fraction of a
second. This indicates unit is functional.
Red Blink
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
volt.
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 becomes solid
red, unplug unit and contact service
department.
Red Fast Blink
NOTE: 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.
Sway Command™ Controller Operation
1. When Sway Command™ detects excessive sway, the light pod will blink red and the tow operator will
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 self-checks and alternately flashes the light pod lights 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 will blink green once, followed by a number of red flashes. 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
activations. The Sway Command™ light pod will turn off when it powers down.
Light Codes and Troubleshooting
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