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Ford Bronco (2021–2026, LED Taillights) Flat-4 Wiring Installation

Vehicle Coverage: 2021–2026 Ford Bronco with LED taillights
Wiring system: Vehicle-specific powered harness
Output: 4-Way Flat
Connection: Vehicle-specific taillight T-connectors
Installation Time: Up to 2 hours
the vehicle-specific wiring harness connects at both taillight assemblies and uses a protected powered converter for reliable trailer-light operation. The installation does not cut the Bronco's factory wiring.
Connector Location: The trailer connector is routed outside the vehicle and secured beside the hitch for ready access; it is not stored loose inside the cargo area.
1. Verifying LED Taillights and Disconnecting Power
We confirm the Bronco has LED taillights, document rear-light operation, and disconnect vehicle power before opening the lighting circuits.
2. Accessing Both Taillight Connections
The rear lamps and required trim are removed carefully so the vehicle-specific connectors can be reached without damaging clips or painted surfaces.
3. Installing the T-Connectors and Converter
The harness is connected between the factory plugs and lamps. The powered converter is secured in a protected location.
4. Routing Protected Power and the 4-Flat
A fused power lead is routed safely to the battery, and the 4-flat is positioned neatly at the hitch away from heat, sharp edges, and moving parts.
5. Testing and Reassembly
Running lights, brake lights, both turn signals, and ground integrity are tested before all lamps and trim are restored.