2009 Harley-Davidson Softail Models Electrical Diagnostic Manual (P/N 99498-09)

Harley-Davidson's 2009 Softail Models Electrical Diagnostic Manual, P/N 99498-09, is the factory electrical troubleshooting publication issued in 2008. It covers EFI-equipped Softail models, with separate FXCWC circuit references and a dedicated Japan/Korea security-system appendix.

• Starting and charging: Starter current-draw and bench tests, solenoid and armature checks, battery testing, stator diagnosis, regulator output and parasitic-current testing.

• Instruments: Speedometer self-diagnostics, fuel gauge and sender testing, indicator-lamp diagnosis, trip-odometer switch checks and serial-data fault tracing.

• Security systems: TSM/HFSM troubleshooting, fob assignment, PIN setup and password learning, plus separate TSM/TSSM procedures for Japan/Korea configurations.

• EFI and ignition: No-start, stalling and misfire diagnostics; fuel-system electrical tests; injector, oxygen-sensor, Crankshaft Position (CKP), Vehicle Speed Sensor (VSS) and Idle Air Control (IAC) checks.

• Connector repair: AMP Multilock, Delphi, Deutsch, Metri-Pack, Molex and Packard terminal service, crimp inspection, fuse-block repair and sealed-splice procedures.

• Wiring references: Color wiring diagrams, connector-location tables and diagnostic flowcharts, with distinct circuit layouts for FXCWC and other Softail models.

Written with professional Harley-Davidson technicians in mind, this manual suits mechanics familiar with wiring diagrams, DVOM testing and dedicated diagnostic equipment.

Starting, Charging and Electrical Test Data

It outlines testing for voltage drop, current draw, and component resistance across multiple electrical subsystems. Starting charts distinguish a clicking relay, a system where nothing clicks, and a starter that stalls or turns too slowly.

The voltage-drop procedures help locate poor connections under load, including grounds affected by powder coating, before repair decisions are made. Bench testing extends to the starter armature, field coils, brushes and brush-holder insulation.

Specifications are provided for verifying electrical integrity across several key components. These include stator output and resistance, battery load-test criteria, ignition-coil resistance, fuse ratings and sensor voltage/resistance tables.

The start-relay test warns that incorrect battery connections can damage the diode across the relay windings. Battery-isolation precautions address accidental shorts and explosion hazards during electrical service.

Instrument Diagnostics and Security Variants

This publication details the interaction between the ECM, the turn signal module variants, and the instrument cluster. Speedometer self-diagnostics can retrieve and clear diagnostic trouble codes (DTCs) without a scan tool; Digital Technician II (HD-48650) is required to distinguish current from historic codes.

HFSM fob assignment requires that diagnostic system and is directed to an authorized Harley-Davidson dealer. The Japan/Korea TSSM appendix has its own fob, configuration and password-learning procedures, so the two security systems should not be treated as interchangeable.

Breakout-box procedures specify HD-42682 for instrument and security testing, with HD-46601 instrument-harness adapters for the speedometer. EFI circuit testing uses HD-43876.

EFI, Ignition and Fuel-System Diagnosis

Engine-management coverage extends to ECM power loss, system-relay faults and intermittent harness connections through the wiggle test. MAP, intake-air-temperature, engine-temperature and throttle-position sensors have dedicated diagnostic sections.

IAC coverage explains pintle operation, automatic reset and P0505 idle-control diagnosis; warm-idle adjustment uses Digital Technician II. HDI-specific sections address the active intake solenoid, active exhaust actuator and jiffy stand sensor.

Fuel-pressure coverage: Pressure specifications and low/high-pressure fault checks are included. The test equipment and pressure-measurement procedure are covered in the separate Service Manual, which is also referenced for many component removal and replacement operations.

Connector Repair and Circuit Diagrams

Appendix A covers terminal removal and installation, connector separation, wire preparation, crimping and seal inspection. Packard 100W ECM connectors and Micro-64 connectors receive separate repair instructions.

Appendix B lists 17 wiring diagrams, with additional circuit diagrams throughout the diagnostic chapters. Examples include Main Harness, Ignition Circuit, Horn & Instruments, Starting and Charging Circuits, Security Circuit and the engine-management chapter's EFI System Circuit.

Connector tables identify functions, terminal arrangements and physical locations. Separate FXCWC wiring sheets help match the test points to the correct harness configuration.

PDF Search, Navigation and Diagram Readability

The printable English PDF contains searchable text and embedded bookmarks for the chapters, appendices and reference sections; small labels on the dense wiring sheets require zooming for comfortable reading. The 458-page PDF includes 16 front-matter pages, 282 main-chapter pages, 150 appendix pages and 10 closing tool-list, reference, index and notes pages. Within that total are 17 pages containing only repeated wiring-diagram captions.