ABOUT THIS MANUAL
Wiring and Circuit Diagrams
The diagrams either show entire systems or specific circuits. The circuit specific
diagrams only show the components and wiring in the system(s)listed in the diagram
title. Always refer to the diagram title for diagram type.
Troubleshooting
Once a problem has been isolated to a specific system or circuit, the circuit specific
diagrams will simplify locating the problem.
NOTE
Harness part numbers may be included on some wiring diagrams. Use these numbers for
reference purposes only. ALWAYS REFER TO THE PARTS CATALOG WHEN ORDERING WIRE HARNESSES.
Table of Contents
TOURING MODELS
Battery Power Distribution: FLH with Fairing
Battery Power Distribution: FLT
Battery Power Distribution without Fairing
Ignition and ACC FLH: 2021 Touring
Ignition and ACC FLT: 2021 Touring
Sensor Grounds FLH: 2021 Touring
Sensor Grounds FLT: 2021 Touring
Ground Circuit FLH: 2021 Touring
Ground Circuit FLT: 2021 Touring
Front Lighting and Hand Controls: 2021 Touring
Fairing Harness FLH: 2021 Touring
Main Harness FLH (1 of 3): 2021 Touring (with Fairing)
Main Harness FLH (2 of 3): 2021 Touring (with Fairing)
Main Harness FLH (3 of 3): 2021 Touring (with Fairing)
Fairing Harness FLT: 2021 Touring
Main Harness FLT (1 of 3): 2021 Touring (with Fairing)
Main Harness FLT (2 of 3): 2021 Touring (with Fairing)
Main Harness FLT (3 of 3): 2021 Touring (with Fairing)
Main Harness (1 of 3): 2021 Touring (without Fairing)
Main Harness (2 of 3): 2021 Touring (without Fairing)
Main Harness (3 of 3): 2021 Touring (without Fairing)
Rear Lighting: 2021 Touring
OE Radio: 2021 Touring (Except FLHX/S, FLT)
OE Radio: 2021 Touring (No Tour-Pak)
BOOM!: Radio with 1 Amp: 2021 Touring
BOOM!: Radio with 2 Amps (1 of 2): 2021 Touring
BOOM!: Radio with 2 Amps (2 of 2): 2021 Touring
BOOM!: Radio with 4 Amps (1 of 4), Front Amp: 2021 Touring
BOOM!: Radio with 4 Amps (2 of 4), Left Saddlebag Amp:
2021 Touring
BOOM!: Radio with 4 Amps (3 of 4), Right Saddlebag Amp:
2021 Touring
BOOM!: Radio with 4 Amps (4 of 4), Tour-Pak Amp: 2021 Touring
Rockford Fosgate: Primary Amplifier with 2 Speakers
Rockford Fosgate: 4 Speakers – Saddlebags or 6 Speakers - Secondary Amplifier, Saddlebags
& Tour-Pak
Rockford Fosgate: 6 Speakers - Fairings & Saddlebags or 6 Speakers Tour-Pak & Lower
Fairings
Rockford Fosgate: 8 Speakers - Saddlebags, Lower Fairings & Tour-Pak
LIVEWIRE ONE MODEL
Battery Power Distribution
High Voltage Circuit
Ground Circuit
Front Harness and Rear Lighting: 2020 LiveWire
Main Harness 1 of 3: 2021 LiveWire
Main Harness 2 of 3: 2021 LiveWire
Main Harness 3 of 3: 2020 LiveWire
SPORTSTER® RH MODELS
Power Distribution: 2021 RH1250S
Sensor Grounds: 2021 RH1250S
Ground Circuit: 2021 RH1250S
Front Lighting and Hand Controls: 2021 RH1250S
Main Harness 1 of 4: 2021 RH1250S
Engine Harness 2 of 4: 2021 RH1250S
Engine Harness 3 of 4: 2021 RH1250S
Main Harness 4 of 4: 2021 RH1250S
Rear Lighting: 2021 RH1250S
FLHXSE MODEL
Battery Power Distribution
Ground Circuit
Front Lighting and Hand Controls: 2021 FLHXSE
Fairing Harness: 2021 FLHXSE
Main Harness (1 of 4): 2021 FLHXSE
Main Harness (2 of 4): 2021 FLHXSE
Main Harness (3 of 4): 2021 FLHXSE
Main Harness (4 of 4): 2021 FLHXSE
Rear Lighting: 2021 FLHXSE
Radio: 2021 FLHXSE
SPORTSTER® MODELS
Battery Power Distribution
Ignition and Accessory Power Distribution
Sensor Grounds
Ground Circuit: 1 of 2
Ground Circuit: 2 of 2
Front Lighting and Hand Controls: 2021 Sportster
Main Harness 1 of 2: 2021 Sportster
Main Harness 2 of 2: 2021 Sportster
Rear Lighting: 2021 Sportster
FLHTKSE MODEL
Front Lighting and Hand Controls: 2021 FLHTKSE
Fairing Harness: 2021 FLHTKSE
Main Harness (1 of 4): 2021 FLHTKSE
Main Harness (2 of 4): 2021 FLHTKSE
Main Harness (3 of 4): 2021 FLHTKSE
Main Harness (4 of 4): 2021 FLHTKSE
Rear Lighting: 2021 FLHTKSE
Radio: 2021 FLHTKSE
SOFTAIL® MODELS
Power Distribution: 2021 Softail
Sensor Grounds: 2021 Softail
Ground Circuit: 2021 Softail
Front Lighting and Hand Controls: 2021 Softail
Backbone Harness 1 of 3: 2021 Softail
Engine Harness 2 of 3: 2021 Softail
Main Harness 3 of 3: 2021 Softail
Rear Lighting: 2021 Softail
PAN AMERICA MODELS
Power Distribution: 2021 Pan America
Sensor Grounds: 2021 Pan America
Ground Circuit: 2021 Pan America
Front Lighting and Hand Controls: 2021 Pan America
Main Harness 1 of 4: 2021 Pan America
Engine Harness 2 of 4: 2021 Pan America
Engine Harness 3 of 4: 2021 Pan America
Main Harness 4 of 4: 2021 Pan America
Rear Lighting: 2021 Pan America
TRIKE MODELS
Front Lighting and Hand Controls FLHTCUTG: 2021 Trike Model
Front Lighting and Hand Controls FLRT: 2021 Trike Model
Fairing Harness FLHTCUTG: 2021 Trike Model
Main Harness FLHTCUTG (1 of 4): 2021 Trike Model
Main Harness FLHTCUTG (2 of 4): 2021 Trike Model
Main Harness FLHTCUTG (3 of 4): 2021 Trike Model
Main Harness FLHTCUTG (4 of 4): 2021 Trike Model
Main Harness FLHTCUTGSE (1 of 4): 2021 Trike Model
Main Harness FLHTCUTGSE (2 of 4): 2021 Trike Model
Main Harness FLHTCUTGSE (3 of 4): 2021 Trike Model
Main Harness FLHTCUTGSE (4 of 4): 2021 Trike Model
Main Harness FLRT (1 of 4): 2021 Trike Model
Main Harness FLRT (2 of 4): 2021 Trike Model
Main Harness FLRT (3 of 4): 2021 Trike Model
Main Harness FLRT (4 of 4): 2021 Trike Model
Rear Lighting FLHTCUTG: 2021 Trike Model
Rear Lighting FLHTCUTGSE: 2021 Trike Model
Rear Lighting FLRT: 2021 Trike Model
Radio FLHTCUTG: 2021 Trike Models
Radio FLHTCUTGSE: 2021 Trike Models
Reverse FLHTCUTG/FLHTCUTGSE: 2021 Trike Model
Reverse FLRT: 2021 Trike Model
FLTRXSE MODEL
Front Lighting and Hand Controls: 2021 FLTRXSE
Fairing Harness: 2021 FLTRXSE
Main Harness (1 of 4): 2021 FLTRXSE
Main Harness (2 of 4): 2021 FLTRXSE
Main Harness (3 of 4): 2021 FLTRXSE
Main Harness (4 of 4): 2021 FLTRXSE
Rear Lighting: 2021 FLTRXSE
Radio: 2021 FLTRXSE
POLICE MODELS
Front Lighting and Hand Controls: 2021 Police
Fairing Harness: 2021 FLHTP
Main Harness (1 of 3): 2021 FLHTP
Main Harness (2 of 3): 2021 FLHTP
Main Harness (3 of 3): 2021 FLHTP
Main Harness (1 of 3): 2021 FLHP
Main Harness (2 of 3): 2021 FLHP
Main Harness (3 of 3): 2021 FLHP
Rear Lighting: 2021 Police