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Rev: 10.15.20

Page 5

CCD-0003689

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 (Fig. 2).

What is happening?

Why?

What should be done?

Off

Sway Command is not powered and 

not active.

Sway Command is in low power. Activate tow vehicle brake to 

wake Sway Command.
Sway Command is not connected to DC 12V power supply. 

Verify wiring.

Green, Red, Repeat

Wake up self-checks in progress

After a few seconds, the Sway Command will complete self-

checks, and set the lights green if Sway Command is ready, or 

a flashing code if an issue is found.

Green Solid

Sway Command is awake and 

monitoring for sway.

Every five seconds there will be a brief time the green LED 

turns off for a fraction of a second. This indicates Sway 

Command is functional.

Red Blink (1/2 second on, 

1/2 second off, 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 blue brake wire not shorted to 12 volt.

Green, 3 Red

Not connected to caravan brakes

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

Green, 4 Red

A short to ground detected.

Verify the blue brake wire is not shorted to ground or 

caravan frame.

Green, 5 Red

Low voltage detected.

Verify tow vehicle and tow battery are at 12 volts.

Red Solid

Sway Command is not functional.

Disconnect harness, wait 10 seconds. Connect harness.

Red Fast Blink (100ms on, 

100ms off, repeats)

Sway Command is not functional.

Disconnect harness. Wait 10 seconds then connect harness. If 

light comes on solid red, unplug Sway Command and contact 

service department.

Fig. 2 

Note:  

The tow vehicle brake control module (BCM) applies brakes to the caravan 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.

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 the Light Codes and Troubleshooting section 

for additional information on blinking light codes.

Sway Command will enter a low power mode after 10 minutes when it senses no tow vehicle brake 

activation or movement. The Sway Command light pod will turn off when it 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.

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