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Troubleshooting the TSC-1000
The TSC-1000 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 1, to identify the status of the unit.
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
If the module does not return to normal solid
GREEN pulsing light, have the unit checked at a
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,
Sway control automatically
disabled due to rough terrain
The unit will return to normal green light when
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
Correct the short on the right-side brake wiring
Correct the short on the left side brake wiring
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
Fast RED flashing Low voltage - between 3 to 6 volts Check the power and ground connections
Table 1
The control module has been strenuously evaluated against the various amount of integrated and aftermarket trailer brake
controllers in use today. If for any reason you become aware of a compatibility issue with a particular trailer brake controller,
please refer to the provided manual for contact details.
Disclaimer: Electronic stability control systems are NOT substitutes for safe driving or towing practices. In no event shall
MDCUSA be liable for loss or damage caused by misuse, modifications, or unsafe driving/towing practices.
For more information on how the system works, wiring information and support, please
refer to the TUSON TSC-1000 user manual provided.
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