Honda GL 1800 Gold Wing Repair Manual (2006)

This 1,520-page PDF set contains two factory Honda publications for the GL1800 Gold Wing: a 1,033-page Service Manual issued in June 2007 and a 487-page Electrical Troubleshooting Manual issued in May 2007. Coverage is organized around Honda’s A/CM destination codes and the IIIA, IVA, VA, VIA, VIIA, VIIIA, IICM, and IIICM configurations. Feature-specific information separates heated seat/grip, Premium Audio, navigation, ABS, Ultra Low Emission, and Airbag systems, while the routing pages identify ’06 model and After ’06 differences where Honda revised cable, harness, or component placement.

• Engine and drivetrain repair: Documents engine removal and installation, cylinder compression testing, camshaft and cam-chain service, cylinder-head disassembly, valve-guide replacement and seat refacing, crankcase separation, piston and connecting-rod work, crankshaft bearing selection, clutch hydraulic and clutch-pack service, transmission disassembly/reassembly, reverse mechanism repair, and final-drive disassembly, bearing replacement, inspection, assembly, and installation.
• PGM-FI, lubrication, and cooling: Provides system diagrams, symptom and DTC diagnosis, HDS/SCS test access, fuel-pressure and pump-flow testing, fuel pump/tank/injector service, sensor and ECM checks, PAIR and EVAP coverage, oil-pressure and oil-pump inspection, cooling-system testing, coolant replacement, radiator/fan service, and water-pump/thermostat repair.
• Chassis and brake systems: Details front and rear wheel work, fork and steering-stem service, rear shock, linkage and swingarm repair, suspension-level control diagnosis, linked-brake hydraulics, secondary master cylinder, delay valve, proportional control valve, anti-dive circuit, calipers, brake-fluid replacement and bleeding, ABS problem-code diagnosis, wheel-speed sensors, and modulators.
• Electrical and touring electronics: Covers battery/charging, ignition, starter/reverse, cruise control, lights/meters/switches, power trunk lock, seat and grip heaters, audio/CB, navigation, and Airbag diagnostics. The ETM adds circuit-operation explanations, test-point procedures, symptom charts, self-tests, connector views, and component-location photographs rather than relying on a single generic wiring sheet.
• Removal and routing references: Includes body-panel removal-order charts for the fairing, top shelter, trunk, and saddlebags, plus a 96-page cable and harness routing section divided between non-Airbag machines and VIIIA/IIICM Airbag models. Separate views show later-production routing changes and the locations of connectors, brake pipes, hoses, sensors, control units, and sub-harnesses.
• Factory data and service tools: Supplies component-specific torque tables, fluid capacities, lubrication and seal-point charts, wear limits, clearances, pressure-test data, electrical test values, and Honda special-tool numbers for fuel-system diagnosis, valve work, clutch repair, fork and steering service, final-drive repair, and Airbag testing and disposal.

Mechanical Repair Depth

The manual distinguishes work that can be completed with the engine in the frame from repairs that require power-unit removal. Cylinder-head and valve service, the clutch, throttle body, water pump/thermostat, alternator, and starter/reverse motor remain accessible in-frame. Oil-pump, transmission, primary/output-shaft, piston/connecting-rod, crankshaft, and reverse-shifter work requires engine removal. That scope distinction helps a workshop plan labor, lifting equipment, and bench space before the motorcycle is dismantled.

Internal repair coverage is measurement-based rather than limited to remove-and-replace instructions. The engine chapters include select-fit bearing identification, inspection limits, sealing and lubrication locations, and final assembly checks. Transmission and final-drive sections continue through internal disassembly, bearing replacement, gear inspection, reassembly, and installation.

Electrical Diagnostics and Diagrams

Useful named references include the Power Distribution, Ground Distribution, Starter/Reverse System, ABS, Navigation System, and Airbag System circuit schematics. The navigation chapter also contains symptom diagnosis, a system diagnosis mode, software upgrading, and a forced-update procedure.

Honda tool references include the HDS pocket tester TDS3557-0112-01, fuel sender/pump wrench 07ZMA-MCAA201, valve spring compressor 07757-0010000, clutch outer holder 07JMB-MN50100, fork seal driver 07KMD-KZ30100, and Airbag inflator simulator 07SAZ-TB4011A.

Workshop Notes

One manual-specific repair warning is easy to miss: the engine-removal section states that supporting the engine by the oil filter can damage the engine. On VIIIA and IIICM machines, yellow Airbag connectors, crash sensors, module installation, and tether positioning carry dedicated precautions; incorrect handling can cause accidental deployment or leave the system inoperative. Honda directs all Airbag-system service to an authorized dealer.

Because this publication addresses linked brakes, pressurized fuel, a heavy engine assembly, stored-energy components, and Airbag circuits, it assumes proper shop training, secure lifting/support equipment, and the specified diagnostic tools. For an experienced owner or technician, it provides the model-specific repair depth needed to identify the correct procedure before parts are ordered or a major assembly is opened.