1996-2004 Honda Legend Service and Repair Manual

This 1996-2004 Honda Legend Service and Repair Manual Covers

Engine and Drivetrain

• • 3.5L C35A SOHC V6 Engine: Full mechanical teardown, interference engine timing belt routing, torque limits, and cylinder head rebuild specifications.
  • PGM-FI Sequential Fuel Injection: Diagnostics for the Honda Programmed Fuel Injection network, including oxygen sensor circuits and fuel delivery setups.
  • Engine Cooling System: Servicing details for the radiator, mechanical thermostat, water pump, and factory temperature parameters.
  • Exhaust and Emissions Control: Pinout testing for the vacuum-actuated Exhaust Gas Recirculation (EGR) valve and multi-bank catalytic converter setups.
  • 4-Speed Automatic Transmission (Mawa/Maxa): Hydraulic schematic routing, clutch pack overhaul, valve body assembly, and shifts-solenoid testing for the longitudinally mounted front-wheel-drive layout.
  • Drivetrain Components: Servicing procedures for the front constant-velocity (CV) joints, half-shafts, and hub carrier attachments.

Chassis and Suspension

• • Front Double Wishbone Suspension: Complete alignment teardowns, lower control arm replacement, and shock absorber assembly guidelines.
  • Rear Double Wishbone Suspension: Multi-link configuration tracking, progressive rate coil spring extraction, and independent bushing servicing.
  • Speed-Sensitive Power Steering: Mechanical troubleshooting of the vehicle-speed-sensitive rack-and-pinion hydraulic pump assembly.
  • Wheel Alignment Specifications: Exact factory settings for manual toe-in, camber, and caster tracking adjustments.
  • Wheel Hub and Bearings: Front and rear press-fit wheel bearing extraction, hub assembly steps, and spindle locking nut torque values.

Braking Systems

• • Anti-lock Braking System (ABS): Pinpoint voltage testing for the early-generation hydraulic modulator unit and wheel speed sensors.
  • Brake Hydraulic System: Master cylinder benchmarking, brake line bleeding sequence, and front/rear disc brake caliper rebuilding.
  • Traction Control System (TCS): Fault tracing for the standalone front-wheel-drive traction control module and throttle actuator linkages.
  • Parking Brake Assembly: Floor or pedal-actuated cable routing adjustments and rear internal drum-in-disc shoe replacement.
  • Brake Component Inspection: Minimum wear tolerances for brake rotors and pad friction replacement criteria.

Electrical and Wiring

• • Complete Factory Wiring Diagrams: Full-color structural schematics tracking all vehicle harnesses, inline connector terminal pins, and grounding points.
  • Charging and Starting System: Bench testing parameters for the alternator, starter motor solenoid repair, and battery load specifications.
  • Integrated Control Unit (ICU): Diagnostic paths for the analog door lock timers, intermittent wiper relays, and central power windows.
  • Power Distribution Network: Under-hood and cabin kick-panel fuse box layouts, main fuel pump relays, and circuit breaker ratings.
  • Lighting Infrastructure: Multi-bulb halogen headlight circuits, cornering lamp functions, dashboard illumination dimmers, and fog light wiring.
  • Premium Audio and Equipment: Pinout data for the factory radio cassette head unit, remote 6-disc CD changer, and power mast antenna.

Air Conditioning and HVAC

• • Automatic Climate Control: Testing vacuum-operated blend door motors, dashboard control panel diagnostics, and sun-load sensors.
  • HVAC Core Componentry: Evaporator housing extraction, heater core plumbing, and blower motor resistor bench-testing.
  • Refrigerant Specifications: Factory standard data for R134a weight parameters, PAG compressor oil capacity, and magnetic clutch air-gap configurations.

Body and Interior

• • Premium Cabin Trim: Safe removal of genuine wood trim inserts, center console dismantling, and power leather seat rail fixes.
  • Exterior Shell and Glass: Bumper removal instructions, panel alignment margins, door lock actuators, and manual sunroof track clean-outs.
  • Supplemental Restraint System (SRS): Safe handling protocols for the dual front airbags (and side airbags on 1999+ models), clock spring positioning, and impact sensors.

Diagnostics and Troubleshooting

• Service Check Connector / OBD2 Diagnostics: Manual flash code retrieval via the 2-pin/3-pin jumpers or standard diagnostic scanner interfacing.
• PGM-FI Actuator Activation: Step-by-step evaluation of target values for fuel pressure regulators, TPS voltages, and MAP readings.
• Electrical Component Bench Tests: Technical multi-meter resistance limits for ignition coils, distributors, crank sensors, and transmission solenoids.

Common Error Codes Covered

Engine Codes

• • P0117: Engine Coolant Temperature (ECT) Sensor Circuit Low Input
  • P0122: Throttle Position (TP) Sensor Circuit Low Input
  • P0131: Primary Heated Oxygen Sensor (HO2S) Circuit Low Voltage
  • P1491: Exhaust Gas Recirculation (EGR) Valve Lift Insufficient Detected
  • P1508: Idle Air Control (IAC) Valve Circuit Failure

Transmission Codes

• • P0730: Incorrect Gear Ratio Malfunction
  • P0753: Shift Solenoid A Electrical Malfunction
  • P1753: Torque Converter Clutch (TCC) Lock-up Solenoid Valve A Failure

ABS and Chassis Codes (Flash Codes)

• • Code 11: Right Front Wheel Speed Sensor Open or Short Circuit
  • Code 13: Left Front Wheel Speed Sensor Open or Short Circuit
  • Code 51: ABS Pump Motor Lock Circuit Malfunction

Network Communication Codes

• • P1607: Engine Control Module (ECM) / Powertrain Control Module (PCM) Internal Circuit Failure
  • P1655: Electronic Signal Line (TMA/TMB/SEAF) Transmission-to-Engine Communication Interruption

Body Control Codes (SRS Flash Codes)

• • Code 1: Driver Airbag Deployment Circuit Open Circuit Malfunction
  • Code 5: Internal SRS Unit Central Control Processor Failure

This manual is ideal for:

• • Professional automotive workshops
  • Independent repair garages
  • Mobile mechanics
  • Automotive technicians
  • Vehicle owners performing DIY repairs
  • Automotive training institutions