. No trailer brakes activated Verify wiring connections, brake signal input, and gain settings. Unresponsive or inconsistent braking Ensure the controller is properly leveled and mounted within specifications. Adjust gain as needed. LED indicators flashing or showing errors Refer to the manual’
Tools and Materials Needed Basic hand tools (screwdrivers, wire strippers, crimping tools) Wire connectors and fuses Wiring harness compatible with your vehicle and trailer Voltage tester or multimeter Drill (if mounting requires) S
the Manual Brake controllers can occasionally encounter operational issues, and the Tekonsha 90155 Primus electric brake controller manual provides a comprehensive troubleshooting section. This part is particularly valuable for diagnosing and resolving common problems such as: No Power to the
