Nissan Skyline R34 GTR 1999 Supplement Service Manual (P/N WD9SE-R34AJ0)

This 434-page PDF manual set combines Nissan’s English-language R34 initial-production service reference with the 1999 R34 Supplement-I covering the newly introduced GT-R. The Supplement identifies the right-hand-drive, two-door GT-R and GT-R V-spec configurations with the RB26DETT twin-turbo engine, ETX13A six-speed manual transmission, four-wheel drive, and Electric Super HICAS. Its model table distinguishes standard GT-R code GGJPRVYR34ZDA with the R200H rear differential from GT-R V-spec code GGJPRWYR34ZDA with the R200Z rear differential.

This is specialized diagnostic and specification material suited to technicians and experienced owners who can interpret circuit diagrams, control-unit terminal data, CONSULT displays, and hydraulic test procedures. It is not written as a beginner-level repair course.

• Covers RB26DETT engine management diagnosis, including system description, vacuum-hose routing, component locations, ECM terminal layout, fail-safe operation, self-diagnosis, CONSULT testing, symptom charts, and ECM input/output reference data.
• Details ATTESA E-TS and ATTESA E-TS PRO hydraulic-oil inspection, air bleeding, evacuation, pressure testing, lock inspection, and removal and installation of the actuator, accumulator, and hydraulic lines.
• Separates the GT-R V-spec E-TS PRO configuration from the standard GT-R E-TS/ABS system, with dedicated hydraulic circuits, fail-safe functions, component checks, actuator service, self-diagnostic tables, and symptom-based fault isolation.
• Provides Electric Super HICAS pre-inspection, circuit testing, control-unit terminal specifications, CONSULT and manual self-diagnosis, malfunction-code charts, and system-specific symptom checks.
• Includes factory diagnostic coverage for NATS, the multi-function display, SRS seat-belt pretensioners, the fully automatic air conditioner, combination meter, warning systems, rear defogger, and heated mirrors.
• Supplies GT-R-specific service data for recommended fluids, engine mechanical specifications, clutch, manual transmission, transfer, rear final drive, drive shaft, axle and suspension, wheels and tires, brakes, steering, and Super HICAS.

Engine and driveline coverage

The RB26DETT section concentrates on electronic engine control rather than internal engine rebuilding. It includes idle-speed and ignition-timing inspection and adjustment, air/fuel-ratio inspection, fuel-pressure testing, fuel-cut checks, fail-safe behavior, CONSULT data monitoring, and terminal-level ECM reference values.

Transfer-system coverage follows the ATTESA hydraulic circuit from fluid condition and leakage checks through evacuation, pressure inspection, system lock testing, and component replacement. A separate propeller-shaft and differential-carrier section addresses the V-spec ATTESA E-TS PRO hydraulic circuit and its actuator installation requirements. The service-data section adds the applicable factory torque specifications, lubricant requirements, inspection limits, and adjustment data for the six-speed drivetrain and related chassis assemblies.

Electronic diagnosis and diagrams

The Supplement contains system-specific wiring and hydraulic documentation rather than a single generic wiring overview. Representative material includes the RB26DETT engine-control circuit and ECM terminal layout, ATTESA E-TS PRO hydraulic circuit diagram, E-TS/ABS system diagram, Electric Super HICAS circuit diagram, fully automatic air-conditioner circuit, and multi-function-display circuit diagram.

CONSULT coverage extends beyond stored codes. The tables identify supported work modes, monitored sensor and actuator signals, active tests, fail-safe states, and control-unit input/output values. Diagnostic charts cover wheel-speed and G sensors, throttle position, hydraulic pressure switching, E-TS and active-LSD solenoids, HICAS steering-angle and yaw-rate signals, NATS communication, and multi-function-display faults.

Included initial-production reference

The accompanying 230-page Nissan Publication No. SM8E-0R34J0 supplies the English diagnostic and service-data baseline for initial-production R34 models. It covers RB20DE, RB25DE, and RB25DET applications; five-speed manual and four-speed automatic configurations; engine and automatic-transmission controls; ABS/TCS; Electric Super HICAS; SRS; climate control; and electrical systems. Supplement-I must be used with that baseline because it documents changed or newly added GT-R systems rather than repeating every standard repair procedure.

The manuals also flag component-specific repair hazards. Test probes must not spread control-unit connector terminals, since damaged terminal tension can create an intermittent circuit after testing. The ATTESA accumulator contains high-pressure nitrogen and must not be disassembled or exposed to welding; its installation and subsequent hydraulic bleeding require the precautions shown in the factory procedure.

Fuel and ATTESA hydraulic circuits must be depressurized before service, and the applicable Nissan safety instructions should be followed whenever repair work involves pressurized fluid, the brake system, SRS components, or electrical testing.