2006–2013 Mitsubishi Triton Service Manual (P/N 4D56/4M41)

This 558-page PDF contains selected Mitsubishi factory workshop-manual sections for the 2006-model-year, right-hand-drive Thailand-market Triton KA4T, KB4T, and KB8T in Club Cab and Double Cab form. The application tables identify 2WD and Easy Select 4WD trucks with the 4D56 2.5L IDI SOHC, 4D56 2.5L DI-D DOHC, and 4M41 3.2L DI-D diesel engines, paired with R5M21, R5MB1, or V5MB1 five-speed manuals and R4AW4 or V4A5A four-speed automatics. Those transmission codes identify vehicle configurations; transmission repair chapters are not included. Because the procedures rely on M.U.T.-III diagnostics, electrical measurements, model-specific tools, and safe lifting equipment, this manual is best suited to professional technicians and experienced owners with a properly equipped workshop.

• 4D56 SOHC engine repair: Covers drive-belt tensioning, valve-clearance and injection-timing adjustment, compression testing, timing and balance-belt service, and removal and installation of the crankshaft pulley, camshaft, valve-stem seals, oil pan, crankshaft seals, cylinder-head gasket, and engine assembly.

• Lubrication, intake, and exhaust systems: Provides oil-pressure testing and oil-cooler service across the listed engine families, plus turbocharger boost and wastegate checks, air-cleaner and intercooler work, manifold service, and exhaust-system removal and installation.

• Common-rail service functions: For DI-D configurations, documents injector identification-code registration, small-injection-quantity learning, supply-pump correction learning, and idle learning after relevant injector, pump, or engine-ECU repair work.

• 2WD and 4WD chassis repair: Includes wheel-balancer accuracy checks, front alignment, ball-joint inspection, upper- and lower-arm service, bushing replacement, shock and coil-spring work, stabilizer service, rear-shock service, and spare-tire carrier removal.

• Cab glass, doors, and rear body: Details bonded-glass replacement, rear-panel power-window diagnostics and initialization, anti-trap checks, door and regulator repair, central locking, keyless-code registration, body mounts, rear gate adjustment, and Club Cab/Double Cab differences.

• Interior and chassis electrical: Covers instrument-panel, console, trim, headliner, seat, and seat-belt removal, together with battery, ignition switch, combination meter, lighting, audio, RV meter, ambient-temperature sensor, and defogger diagnosis and service.

• CAN fault isolation: Supplies M.U.T.-III CAN-bus diagnostics, network repair precautions, bus-line test paths, communication-signal and U-code tables, and configuration-specific checks for the engine, automatic-transmission, ABS, ETACS, and RV-meter modules.

Diagnostic Tools, Diagrams, and Specifications

The troubleshooting material distinguishes current and stored faults and uses symptom charts, system circuits, connector checks, ECU-terminal data, and M.U.T.-III data-list tests. Representative visuals include 4D56 SOHC timing-belt component layouts, 2WD/4WD front-suspension construction diagrams, the rear-panel power-window circuit, central door-lock power-supply circuit, speaker-system circuit, and CAN-bus structure and diagnostic-flow diagrams. Exploded component views identify nonreusable parts, sealant and lubrication points, and removal or installation order.

Special-tool tables identify the M.U.T.-III subassembly MB991955, VCI MB991824, CAN main harness A MB991910, 4D56 prestroke adapter MD998384, cylinder-head bolt wrench MD998051, angle gauge MB991614, test harness MB991219, and extra-fine probe MB992006. Reference data includes standard and component-specific torque tables, service limits, adjustment specifications, wheel-alignment data, lubricant and sealant requirements, oil-pressure test data, and electrical test values.

Scope Limits and Service Cautions

This PDF is a selected set of workshop-manual groups, not a complete vehicle manual set. The engine-mechanical repair chapter covers the 4D56 SOHC only; 4D56 DOHC and 4M41 coverage in this PDF is limited mainly to shared identification data, lubrication, and intake/exhaust work. Detailed engine and transmission bench overhaul and the cooling, fuel, brake, steering, axle, and transmission chapters are not included. System circuits support the included diagnostics, but the manual directs full harness tracing to a separate Electrical Wiring Manual. Several procedures cross-reference Groups 13A, 14, 17, 51, 52B, and 54B outside this file. General SRS and seat-belt pretensioner precautions are present, but the dedicated Group 52B SRS chapter is not.

The wastegate-actuator test warns that excessive test pressure can damage its diaphragm. Connector-testing notes also caution that probing a waterproof connector from the harness side can compromise the seal and lead to corrosion. SRS precautions must be reviewed before repair work near restraint-system components because retained system energy can deploy an airbag after the battery is disconnected.