Nissan Maxima / Maxima QX 2003 Service Manual Set (P/N SM3E-1A33U1)

These publications cover different markets and revision levels, with overlapping service content. Match the selected manual to the vehicle’s engine, transaxle and destination market.

The 2002 section set does not include a separate FE (Accelerator Control, Fuel & Exhaust Systems) PDF.

The body repair book is a 2000-model reference for experienced collision technicians. It refers to the separate Body Repair Manual (Fundamentals) and 2000 A33 Service Manual; those companion publications are not included.

Searchable PDFs and Section Navigation

Search, bookmarks and diagram detail: PDF text search is available. Technical sections have embedded bookmarks, but some entries in the combined manual are inactive, and links between the renamed 2002 section files do not consistently match the supplied filenames. Separate foreword and feedback PDFs have no bookmarks. Small pin numbers and wire codes in the checked diagrams are readable when enlarged.

The ZIP contains 66 printable PDFs totaling 10,012 pages: one combined manual plus separate service sections and reference documents. This total includes 43 NOTES pages and 14 title, foreword and feedback pages within the listed publications.

Engine, Transaxle and Electrical Service

The following is a selection of covered work, rather than a complete contents list. Other topics include sunroof adjustment and navigation-system diagnosis.

• Engine repair: Step-by-step procedures for timing-chain service, cylinder-head disassembly, engine removal, and cylinder-block inspection, with component identification and assembly specifications.

• Transaxles and clutch: Manual and automatic transaxle teardown, internal inspection and reassembly, clutch hydraulic service, and automatic-transaxle stall and line-pressure testing.

• Engine-control diagnosis: DTC confirmation, CONSULT-II data, sensor-circuit testing, fuel and emissions diagnosis, and electronic-throttle learning procedures in the VQ35DE manuals.

• Brakes and chassis: Disc-brake and parking-brake service, ABS diagnosis, applicable traction-control testing, wheel-bearing work, suspension inspection, and power-steering service.

• Maintenance and cooling: Standard and severe-use schedules, fluid and platinum spark-plug replacement, cooling-system leak tests, thermostat inspection, and water-pump removal and installation.

• Electrical troubleshooting: System wiring diagrams, harness layouts, connector terminal views, power-supply routing, and starter and charging-system tests.

• Climate control and body: Manual and automatic A/C diagnosis, refrigerant-system service, trim removal, and separate structural body-alignment and panel-replacement information.

These manuals suit technicians familiar with automotive repair, electrical measurements and the diagnostic equipment specified for the job.

Internal Engine Work and Reassembly

The engine sections extend beyond routine maintenance to valve-clearance inspection, valve and cylinder-head checks, piston and bearing inspection, and bearing-grade selection. Intake-manifold fastening is documented as a staged procedure; cylinder-head bolt data includes preliminary torque and angular tightening requirements.

Oil-pan and timing-chain cautions identify the crankshaft-position sensor and signal plate as parts that can be damaged during disassembly.

Transaxle Variants and Fault Isolation

The 2003 North American manuals distinguish the conventional manual-transaxle final drive from the RS6F51H helical limited-slip version. The QX sections separately cover the RS5F50A/RS5F50V manual units and RE4F04B/RE4F04W automatics, including viscous-coupling inspection for the RE4F04W.

Automatic-transaxle diagnosis connects symptoms, road-test observations and hydraulic tests with possible internal faults. Control-valve, clutch and final-drive repair sections provide the corresponding component inspection and assembly data.

Wiring Diagrams and Terminal Testing

Electrical incident diagnosis and terminal-probing guidance support fault tracing before components are replaced. Examples include headlamp wiring diagrams, ABS schematics, A/C control diagrams, starting-circuit diagrams, and Super Multiple Junction terminal arrangements.

The VQ35DE engine-control sections also explain the learning operations associated with electronic-throttle service. Their electrical precautions warn that accidental contact between tester probes can short the circuit and damage the ECM power transistor.

Follow the manual’s safety precautions before working on electrical sensors, SRS circuits, or pressurized fuel and refrigerant systems.

Intake Fastening and Cooling Data Preview

The VQ35DE intake-manifold section gives a final tightening range of 26.5–31.4 N·m (20–23 ft-lb), reached through staged tightening rather than a single pass.

For the same engine, the cooling-system capacity is 7.7 liters (8-1/8 US qt), including the reservoir. The maintenance section pairs this capacity with coolant replacement, flushing and air-bleeding procedures.