MDC XT 14E 2021 - Page 17

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The BG-5000 is self-diagnosing and in the unlikely event that you need to troubleshoot your unit, identify this
module, and determine the series of lights displayed. Refer to the below table to identify the status of the unit.
LIGHT
ACTION
CONDITION
CORRECTIVE ACTION
Solid GREEN
pulsing
Normal operation - no system
faults No action - system OK
GREEN flash 2
times per
second
Sway control braking is active No action - system OK
1 GREEN flash
every 2
seconds
Firmware checksum error. Keep
The trailer sits still for a
minimum of 60seconds, then
drive normally.
If the module does not return to
normal solid GREEN pulsing light, have
the unit checked at a service centre.
1 GREEN flash
every 4
seconds
Module reset to mfg. default
values. Keep the trailer sitting
still for a minimum of 60
seconds, then drive normally.
If the module does not return to
normal solid GREEN pulsing light after
3 system restarts, have the unit
checked at a service centre.
RED, GREEN,
RED, GREEN,
continuing…
Sway control automatically
disabled due to rough terrain
The unit will return to normal green
light when not on rough terrain
No light
Unit in "sleep" mode
Activate manual override on the
brake controller to "wake up"
unit
No power after "wake up" from
brake controller
Verify the unit has good quality
power, ground, and brake controller
wire connections. Check for any
blown fuses on the truck and trailer.
Overvoltage - over +20 volts
Check that the power source is
not exceeding 20 volts – correct
voltage to 12-15 volts
Low voltage - under 3 volts
Check that the power source is
12-15 volts. Verify good power
and ground connections
5 RED flashes
Ground wire intermittent or
disconnected
Check ground wire connections
to the trailer battery and tow
vehicle
4 RED flashes Brake short (right side)
Correct the short on the right-
side brake wiring
3 RED flashes Brake short (left side)
Correct the short on the left
side brake wiring
2 RED flashes
Sensor malfunction - no sway
control
Service centre repair required
1 RED flash
Blue Wire Short – System
malfunction
Correct the blue wire short,
Service centre repair may be
required.
Fast RED
flashing
Low voltage - between 3 to 6
volts
Check the power and ground
connections
For more information on how the system works, wiring information and support, please refer to the Trail-
Assure BG-5000 user manual provided.