2005 Infiniti FX35/FX45 Automatic Transmission Service Manual (SM5E-1S50U1)

• 2005 Infiniti FX35/FX45 S50-series coverage: FX35 models with the VQ35DE engine in 2WD or AWD, plus FX45 models with the VK45DE engine in AWD, for the listed USA and Canada configurations using the RE5R05A five-speed automatic transmission.
• Factory publication identity: August 2004 edition, July 2005 revision, Publication No. SM5E-1S50U1; 4,793 pages across the foreword and 42 indexed PDF sections.
• Covers VQ35DE and VK45DE engine removal, timing-chain and camshaft work, cylinder-head and valve service, cylinder-block overhaul, mechanical inspection, OBD-II/CONSULT-II diagnosis, ECM registration, and throttle and idle learning procedures.
• Details RE5R05A fluid and cooler service, 2WD/AWD control diagnosis, TCM and solenoid testing, shift and lock-up checks, transmission removal, internal teardown, oil-pump and clutch/planetary repair, valve-body service, reassembly, and adjustment.
• Includes ETX13B AWD transfer diagnosis and overhaul, F160A/R200 final-drive service, propeller shafts and axles, steering and suspension, wheel alignment, TPMS registration, brake hydraulics, and VDC/TCS/ABS/EBD diagnosis and calibration.
• Documents equipment-specific CAN networks, BCM/IPDM and power distribution, Intelligent Key and NATS, body/lock/glass/roof/seat systems, xenon lighting, SRS, automatic climate control, Bose audio, navigation, and rear entertainment.
• Provides ICC running tests and laser-sensor aiming with target board KV99110100 (J-45718), LDW camera aiming, rear-view guideline correction, system wiring, connector and pin-location views, terminal-reference tables, diagnostic flowcharts, and exploded assembly drawings.

Coverage and Publication Identity

The foreword identifies this as the Infiniti/Nissan factory service manual for the 2005 FX35 and FX45, Model S50 Series. The model table lists FX35 2WD code TLJALTN-EUA, FX35 AWD codes TLJNLTN-EUA/ENA, and FX45 AWD codes TPHNLTN-EUA/ENA; the EUA and ENA applications are assigned to the USA and Canada respectively. This is a whole-vehicle service set rather than a transmission-and-cruise extract.

Its indexed sections span powertrain, chassis, body, climate, restraint, communications, convenience, and electrical systems. That breadth matters when a repair crosses module boundaries, such as an ICC fault accompanied by CAN communication codes or an AWD complaint involving the transmission, transfer, ABS/VDC, and network sections.

Component and System Documentation

The engine material is divided between VQ35DE and VK45DE procedures. It reaches beyond routine maintenance into timing-chain and camshaft work, cylinder-head removal and overhaul, valve-guide, valve-seat, and valve-clearance service, engine assembly removal, and cylinder-block disassembly, measurement, bearing selection, and assembly. VQ35DE engine removal is separated for 2WD and AWD packaging. Engine Control adds OBD-II DTC workflows, CONSULT-II and GST functions, ECM connector layouts and reference data, wiring diagrams, sensor graphs, fuel-pressure testing, EVAP/ORVR and PCV diagnosis, VIN registration, accelerator-pedal and throttle-position learning, and idle-air-volume learning.

The RE5R05A chapter covers ATF level and replacement checks, cooler cleaning and flushing, shift-system and interlock service, TCM input/output diagnosis, solenoid and circuit testing, line-pressure and road-test procedures, and fault diagnosis with or without CONSULT-II. Repair depth extends through 2WD/AWD transmission removal, torque-converter and oil-pump inspection, clutch-pack and triple-planetary disassembly, valve-body teardown, internal end-play and clearance adjustment, and final assembly. Cross-sectional views, the clutch-and-band application chart, gear-by-gear power-flow diagrams, oil-channel drawings, and shim, bearing, washer, and snap-ring location views support the overhaul sections.

AWD coverage follows the drivetrain through the ETX13B electronically controlled transfer, CAN-linked AWD control, fail-safe diagnosis, transfer removal and overhaul, the F160A front final drive, and the R200 rear final drive. The differential chapters address tooth contact, backlash, preload, pinion height, runout, shim selection, seals, and assembly. Propeller shafts, wheel hubs, drive shafts, steering gear and pump, suspension members, struts, shocks, links, stabilizers, and wheel alignment have dedicated repair sections.

Brake documentation spans fluid and bleeding work, hydraulic piping, master cylinder and booster service, caliper overhaul, rotor inspection, and parking-brake adjustment. Brake Control adds VDC, TCS, ABS, and EBD diagrams and diagnostics, steering-angle-sensor neutral adjustment, and AWD deceleration-G-sensor calibration. TPMS coverage includes transmitter ID registration with or without the J-45295 activation tool.

Specification Highlights and Technical Data

The service sections supply component-specific torque tables, fluid and lubricant specifications, capacities, pressure-test data, electrical values, connector pinouts, wear limits, clearances, end play, preload, alignment data, and calibration specifications. The transmission fluid notes identify the required Matic J application and warn that unsuitable substitutes can affect shift performance and durability.

Electrical diagnosis is organized around 10 CAN system types, selected according to engine, 2WD/AWD layout, navigation, ICC, Intelligent Key, lane-departure warning, and automatic-drive-positioner equipment. Configuration tables, CONSULT-II CAN support-monitor procedures, check sheets, and circuit-isolation schematics link the ECM, TCM, AWD unit, ICC unit, BCM, combination meter, ABS actuator, seat control unit, display, and IPDM E/R. The VK45DE material also retains a serial split for the P1148/P1168 closed-loop confirmation procedure: up to serial 400595 except 400590, versus serial 400590 and serial 400596 onward.

Representative visual references include the VQ35DE/VK45DE ECM circuit and connector layouts, RE5R05A 2WD/AWD cross-sections and clutch chart, the ETX13B power-transfer diagram, the VDC/TCS/ABS hydraulic circuit, CAN Type 1–10 schematics, and the ICC target-board and laser-beam aiming layout. Other sections cover Intelligent Key registration, NATS/IVIS diagnosis, xenon headlamp aiming, R-134a climate-control testing, base and Bose audio, navigation self-diagnosis, rear entertainment, SRS fault tracing, body-alignment measurements, and high-strength-steel panel repair information.

ICC, Driver Assistance, and Repair Cautions

The cruise-control material covers conventional ASCD operation and Intelligent Cruise Control, including vehicle-to-vehicle distance control, conventional fixed-speed mode, and brake-assist-with-preview functions. It provides action and running tests, system schematics, ICC unit and laser-sensor terminal data, CONSULT-II work support, self-diagnosis, data monitor and active tests, DTC and symptom workflows, component removal, and laser aiming with target board KV99110100 (J-45718). Separate Driver Information procedures address LDW camera aiming and rear-view monitor guideline correction after relevant component work.

Several factory cautions show why the detailed repair sequence matters. After timing-chain removal, the crankshaft and camshafts must not be rotated independently because valve-to-piston contact can result. The rear final drive uses a collapsible pinion spacer; exceeding the specified preload calls for spacer replacement rather than backing off the pinion nut, which can leave the bearing and gear setup incorrect. During RE5R05A valve-body repair, lint-free materials are required because ordinary shop-rag fibers can interfere with precision valve operation.

Safety note: SRS, brake-hydraulic, refrigerant, and ICC/LDW calibration work can create serious hazards or leave safety-related systems incorrectly adjusted. These procedures should be performed or verified by a technician with the specified service equipment and CONSULT-II capability.