2003–2005 Mitsubishi Eclipse / Eclipse Spyder Factory Service Manual (P/N MSSP-002B-2003)

• Exact coverage and document identity: Written for the 2003 Mitsubishi Eclipse and Eclipse Spyder. It covers the 4G64 2.4L and 6G72 3.0L engines, five-speed manual and four-speed automatic configurations, Federal and California emissions applications, and 3.0L versions with or without Variable Induction Control (VIC). The archive totals 3,645 PDF pages; the four volume prefaces carry printed Mitsubishi code MSSP-002B-2003.
• Engine repair and overhaul: Documents engine removal and installation, compression and manifold-vacuum checks, cylinder-head and gasket work, camshaft and oil-seal service, oil-pan repair, timing-belt procedures, and the 4G64 balance-shaft belt. Separate 2.4L and 3.0L overhaul chapters cover cylinder heads and valves, rocker arms and camshafts, oil pumps, pistons and connecting rods, crankshafts, cylinder blocks, and flywheel or drive-plate inspection.
• MFI and engine-control diagnosis: Includes trouble-code charts, fail-safe tables, symptom procedures, scan-tool data lists, actuator tests, ECM/PCM terminal checks, oscilloscope waveforms, fuel-pressure testing, injector checks, throttle-position and idle adjustment, oxygen-sensor testing, and emissions-system diagnosis. Mitsubishi MUT-II scan tool MB991502 and related special tools are identified where required.
• Manual and automatic transaxles: Covers F5M42 and F5M51 manual-transaxle diagnosis, removal, shift-control service, and internal overhaul. The F4A42/F4A51 INVECS-II automatic sections include DTC diagnosis, pressure testing, sensor and solenoid checks, sport-mode and non-sport-mode systems, transaxle removal, and overhaul of the clutch, brake, oil-pump, valve-body, planetary-gear, output-shaft, and differential assemblies.
• Chassis, body, and Spyder systems: Provides repair and diagnostic material for axles, suspension, wheel alignment, service brakes, ABS, traction control, power steering, HVAC, SRS, doors, window regulators, keyless entry, sunroof, interior and exterior trim, and the Spyder convertible top. Top fit adjustment, water-leak testing, drive-motor service, bow and rail work, weatherstrips, and control-module diagnosis are included.
• Electrical diagrams and physical locations: Group 70 maps fuses, fusible links, grounds, relays, sensors, control units, solenoids, and inspection terminals. Groups 80A and 80B trace harness routing and splice locations S001-S214, while Group 90 supplies circuit diagrams for power distribution, MFI, INVECS-II 4A/T, ABS/TCL, SRS, and the convertible top.

Four-Volume PDF Organization

Page breakdown: Volume 1 — 920 pages; Volume 2 — 1,086 pages; Volume 3 — 1,148 pages; Volume 4 — 490 pages; start file — 1 page. The publication code is marked (1/4) through (4/4) in the four volume prefaces.

Volume 1 concentrates on general service information, vehicle identification, electrical test practices, both engine-mechanical sections, both engine-overhaul sections, lubrication, and 2.4L MFI. Volume 2 continues with 3.0L MFI, fuel supply, cooling, intake and exhaust, charging, starting and ignition, engine and emission control, clutch, and manual transaxle repair. Volume 3 covers the automatic transaxle, running gear, suspension, brakes, steering, body, interior, exterior, and SRS. Volume 4 contains HVAC plus the component-location, harness, splice, and circuit-diagram references. Across the set, factory procedures are paired with tightening specifications, service limits, lubricants, sealants, adjustment data, and electrical test values.

Diagnostic Detail That Matters in the Bay

The MFI chapters distinguish the ECM used with manual-transmission cars from the PCM used with automatic-transmission cars. Their diagnostic routines tie connector terminals, harness checks, sensor inputs, actuator commands, and waveform inspection back to the matching circuit diagrams. The automatic-transaxle material does the same for INVECS-II controls, including fluid-temperature, crankshaft-position, throttle-position, park/neutral, solenoid, and shift-control checks. Sectional views and internal assembly drawings distinguish the F5M42/F5M51 and F4A42/F4A51 layouts before overhaul work begins.

Electrical troubleshooting is not limited to a schematic symbol. Harness configuration drawings show the engine compartment, engine and transaxle, dash panel, floor and roof, doors, and Eclipse or Spyder luggage areas. Splice numbers are cross-referenced to the circuit diagrams, making it possible to follow a signal from the diagram to its physical branch point and connector location.

Scope and Service Cautions

The general model tables identify F4A52 on selected 3.0L automatic applications, while the dedicated automatic-transaxle service and overhaul chapters are labeled F4A42 and F4A51. The PDF set also does not contain the separately referenced Group 36 Parking Brake, Group 54A/54B Chassis Electrical, or the 2001 Eclipse/Eclipse Spyder Body Repair Manual named in the foreword.

The 6G72 timing-belt chapter warns that rotating a camshaft with No. 1 piston at top dead center can allow valve-to-piston contact and damage parts. The electrical section also warns against backprobing waterproof connectors or forcing test probes into terminals, since either practice can damage terminal fit, promote corrosion, and create intermittent circuit faults. Follow the manual’s SRS, fuel, lifting, and refrigerant precautions, and use qualified service support for work outside your training or equipment.