2006 Harley-Davidson Softail Service Manual: Fat Boy, Springer, Night Train

2006 Harley-Davidson Softail Technical Documentation

• Covers 2006 Harley-Davidson Softail models, including Fat Boy, Springer, Night Train, and FLSTFSE2 variants
• Includes official Harley-Davidson publication P/Ns: 99482-06, 99494-06, and 99498-06
• Features 34 electrical wiring diagrams and 15 diagnostic flow charts for starter, charging, and instrument systems
• Instant, fully indexed PDF download with searchable chapters and appendices
• The primary factory reference for electrical, ignition, and fuel system troubleshooting on the '06 Softail platform

Instrument and Electrical Diagnostics

This reference collection outlines the complex electrical and diagnostic systems of the 2006 Softail platform. It details specific testing protocols for starter motors, voltage regulators, and ignition coils, alongside an in-depth look at TSM/TSSM security and bank angle sensor functions. Since working with high-amperage electrical circuits and pressurized fuel systems carries inherent physical risks, this documentation provides the exact factory baselines needed to assess components safely before removing any hardware. The text also breaks down check engine light behaviors, speedometer initialization sequences, and diagnostic trouble codes (DTCs) to help isolate stubborn faults.

Specification and Reference Data

Inside, technicians and DIY builders will find quick-reference technical data essential for routine and heavy maintenance. For example, ignition coil primary resistance is specified at 0.5–0.7 ohms, with secondary resistance at 5500–7500 ohms. The manual also confirms critical load specifications, such as the 30-amp starter relay and 15-amp battery fuse. Instead of relying on guesswork, this guide provides the exact factory numbers required for accurate, reliable system maintenance and troubleshooting.

Document Reference: Part Numbers 99482-06, 99494-06, 99498-06