SYSTEM — BASIC ENGINE CONTROL SYSTEM

| SYMPTOM | Reference page
HARD/NO START/RESTART (EXCP. HA) | ENGINE STALL | HESITATION/SURGING/FLAT SPOT | SPARK KNOCK/DETONATION | LACK OF POWER/POOR ACCELERATION | HIGH IDLE/LOW IDLE | ROUGH IDLE/HUNTING | IDLING VIBRATION | SLOW/NO RETURN TO IDLE | OVERHEATS/WATER TEMPERATURE HIGH | EXCESSIVE FUEL CONSUMPTION | EXCESSIVE OIL CONSUMPTION | BATTERY DEAD (UNDER CHARGE)
Warranty symptom code | AA | AB | AC | AD | AE | AF | AG | AH | AJ | AK | AL | AM | HA
Fuel | Fuel pump circuit | 1 | 1 | 2 | 3 | 2 |  | 2 | 2 |  |  | 3 |  | 2 | Component Function Check (GT-R certified NISSAN dealer)
Sub fuel pump circuit |  |  | 2 | 2 | 1 |  |  |  |  |  |  |  |  | DTC Logic (GT-R certified NISSAN dealer)
Fuel pressure regulator system | 3 | 3 | 4 | 4 | 4 | 4 | 4 | 4 | 4 |  | 4 |  |  | Inspection (GT-R certified NISSAN dealer)
Fuel injector circuit | 1 | 1 | 2 | 3 | 2 |  | 2 | 2 |  |  | 2 |  |  | Component Function Check (GT-R certified NISSAN dealer)
Evaporative emission system | 3 | 3 | 4 | 4 | 4 | 4 | 4 | 4 | 4 |  | 4 |  |  | System Description (GT-R certified NISSAN dealer)
Air | Positive crankcase ventilation system | 3 | 3 | 4 | 4 | 4 | 4 | 4 | 4 | 4 |  | 4 | 1 |  | Component Inspection
Incorrect idle speed adjustment |  |  |  | 1 | 1 | 1 | 1 |  | 1 |  |  | Special Repair Requirement (GT-R certified NISSAN dealer)
Electric throttle control actuator | 1 | 1 | 2 | 3 | 3 | 2 | 2 | 2 | 2 |  | 2 |  | 2 | DTC Logic (GT-R certified NISSAN dealer), DTC Logic (GT-R certified NISSAN dealer)
Ignition | Incorrect ignition timing adjustment | 3 | 3 | 1 | 1 | 1 |  | 1 | 1 |  |  | 1 |  |  | Special Repair Requirement (GT-R certified NISSAN dealer)
Ignition circuit | 1 | 1 | 2 | 2 | 2 |  | 2 | 2 |  |  | 2 |  |  | Component Function Check (GT-R certified NISSAN dealer)
Main power supply and ground circuit | 2 | 2 | 3 | 3 | 3 |  | 3 | 3 |  | 2 | 3 |  |  | Diagnosis Procedure (GT-R certified NISSAN dealer)
Mass air flow sensor circuit | 1 | 1 | 2 | 2 | 2 |  | 2 | 2 |  |  | 2 |  |  | DTC Logic (GT-R certified NISSAN dealer), DTC Logic (GT-R certified NISSAN dealer)
Engine coolant temperature sensor circuit | 3 | 3 | 3 |  |  |  | DTC Logic (GT-R certified NISSAN dealer), DTC Logic (GT-R certified NISSAN dealer)
Air fuel ratio (A/F) sensor 1 circuit |  |  |  |  |  |  | DTC Logic (GT-R certified NISSAN dealer), DTC Logic (GT-R certified NISSAN dealer), DTC Logic (GT-R certified NISSAN dealer), DTC Logic (GT-R certified NISSAN dealer), DTC Logic (GT-R certified NISSAN dealer)
Throttle position sensor circuit |  |  | 2 | 2 |  |  |  | DTC Logic (GT-R certified NISSAN dealer), DTC Logic (GT-R certified NISSAN dealer), DTC Logic (GT-R certified NISSAN dealer), DTC Logic (GT-R certified NISSAN dealer), DTC Logic (GT-R certified NISSAN dealer)
Accelerator pedal position sensor circuit |  |  | 3 | 2 | 1 |  |  |  |  |  |  | DTC Logic (GT-R certified NISSAN dealer), DTC Logic (GT-R certified NISSAN dealer), DTC Logic (GT-R certified NISSAN dealer)
Knock sensor circuit |  |  | 2 |  |  |  |  |  |  |  | 3 |  |  | DTC Logic (GT-R certified NISSAN dealer)
Engine oil temperature sensor |  |  | 4 |  | 3 |  |  |  |  |  | 3 |  |  | DTC Logic (GT-R certified NISSAN dealer), DTC Logic (GT-R certified NISSAN dealer)
Crankshaft position sensor (POS) circuit | 2 | 2 |  |  |  |  |  |  |  |  |  |  |  | DTC Logic (GT-R certified NISSAN dealer)
Camshaft position sensor (PHASE) circuit | 3 | 2 |  |  |  |  |  |  |  |  |  |  |  | DTC Logic (GT-R certified NISSAN dealer)
Turbocharger boost sensor circuit |  |  | 3 |  | 3 |  |  |  |  |  |  |  |  | DTC Logic (GT-R certified NISSAN dealer), DTC Logic (GT-R certified NISSAN dealer)
Vehicle speed signal circuit |  | 2 | 3 |  | 3 |  |  |  |  |  | 3 |  |  | DTC Logic (GT-R certified NISSAN dealer)
Power steering pressure sensor circuit |  | 2 |  |  |  |  | 3 | 3 |  |  |  |  |  | DTC Logic (GT-R certified NISSAN dealer)
ECM | 2 | 2 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |  |  | DTC Logic (GT-R certified NISSAN dealer), DTC Logic (GT-R certified NISSAN dealer)
Intake valve timing control solenoid valve circuit |  | 3 | 2 |  | 3 | 3 | 2 | 2 | 3 |  | 3 |  |  | DTC Logic (GT-R certified NISSAN dealer)
Air cut solenoid valve circuit | 3 |  |  |  | 3 |  |  |  |  |  |  |  |  | DTC Logic (GT-R certified NISSAN dealer)
Turbocharger boost control solenoid valve circuit |  |  | 3 |  | 3 |  |  |  |  |  |  |  |  | DTC Logic (GT-R certified NISSAN dealer)
PNP signal circuit |  |  | 3 |  | 3 |  | 3 | 3 |  |  | 3 |  |  | DTC Logic (GT-R certified NISSAN dealer)
Refrigerant pressure sensor circuit |  | 2 |  |  |  | 3 |  |  | 3 |  | 4 |  |  | Component Function Check (GT-R certified NISSAN dealer)
Electrical load signal circuit |  |  |  |  |  |  | 3 |  |  |  |  |  |  | Component Function Check (GT-R certified NISSAN dealer)
Air conditioner circuit | 2 | 2 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |  | 3 |  | 2 | Work Flow
ABS actuator and electric unit (control unit) |  |  | 4 |  |  |  |  |  |  |  |  |  |  | Work Flow (GT-R certified NISSAN dealer)
1 - 6: The numbers refer to the order of inspection.
(continued on next table)

SYSTEM — ENGINE MECHANICAL & OTHER

| SYMPTOM | Reference page
HARD/NO START/RESTART (EXCP. HA) | ENGINE STALL | HESITATION/SURGING/FLAT SPOT | SPARK KNOCK/DETONATION | LACK OF POWER/POOR ACCELERATION | HIGH IDLE/LOW IDLE | ROUGH IDLE/HUNTING | IDLING VIBRATION | SLOW/NO RETURN TO IDLE | OVERHEATS/WATER TEMPERATURE HIGH | EXCESSIVE FUEL CONSUMPTION | EXCESSIVE OIL CONSUMPTION | BATTERY DEAD (UNDER CHARGE)
Warranty symptom code | AA | AB | AC | AD | AE | AF | AG | AH | AJ | AK | AL | AM | HA
Fuel | Fuel tank | 5 | 5 |  |  |  |  |  |  |  |  |  |  |  | Inspection (GT-R certified NISSAN dealer)
Fuel piping | 5 | 5 | 5 | 5 | 5 | 5 | Inspection (GT-R certified NISSAN dealer)
Vapor lock |  |  |  |  |  |  | 5 |  |  |  |  |  | —
Valve deposit | 5 | 5 | 5 | 5 |  | 5 | 5 |  |  | 5 | —
Poor fuel (Heavy weight gasoline, Low octane) |  |  |  | —
Air | Air duct |  | 5 | 5 |  | 5 |  | 5 | 5 |  |  | 5 |  |  | Removal and Installation
Air cleaner | Removal and Installation
Air leakage from air duct (Mass air flow sensor — electric throttle control actuator) | 5 | 5 | 5 | 5 | Removal and Installation
Electric throttle control actuator | Removal and Installation
Air leakage from intake manifold/Collector/Gasket | Inspection (GT-R certified NISSAN dealer)
Cranking | Battery | 1 | 1 | 1 |  | 1 |  | 1 | 1 |  |  | 1 |  | 1 | Work Flow
Generator circuit | Inspection Procedure,
Starter circuit | 3 |  |  |  |  |  |  | Work Flow (GT-R certified NISSAN dealer)
Signal plate | 6 | Inspection (GT-R certified NISSAN dealer)
PNP signal | 4 | Inspection and Adjustment
Engine | Cylinder head | 5 | 5 | 5 | 5 | 5 |  | 5 | 5 |  |  | 5 |  |  | Inspection (GT-R certified NISSAN dealer)
Cylinder head gasket | 4 | 3 |
Cylinder block | 6 | 6 | 6 | 6 | 6 | 6 | 6 |  | 6 | 4 | Inspection (GT-R certified NISSAN dealer)
Piston
Piston ring
Connecting rod |
Bearing
Crankshaft
Valve mechanism | Timing chain | 5 | 5 | 5 | 5 | 5 |  | 5 | 5 |  |  | 5 |  |  | Inspection (GT-R certified NISSAN dealer)
Camshaft | Inspection (GT-R certified NISSAN dealer)
Intake valve timing control | Disassembly and Assembly (GT-R certified NISSAN dealer)
Intake valve | 3 | Inspection (GT-R certified NISSAN dealer)
Exhaust valve
Exhaust | Exhaust manifold/Tube/Muffler/Gasket | 5 | 5 | 5 | 5 | 5 |  | 5 | 5 |  |  | 5 |  |  | Inspection (GT-R certified NISSAN dealer), Exploded View
Three way catalyst
Lubrication | Oil pan/Oil strainer/Oil pump/Oil filter/Oil gallery/Oil cooler | 5 | 5 | 5 | 5 | 5 |  | 5 | 5 |  |  | 5 |  |  | Inspection (GT-R certified NISSAN dealer), Inspection, Inspection (GT-R certified NISSAN dealer), Inspection (GT-R certified NISSAN dealer)
Oil level (Low)/Filthy oil | Inspection
Cooling | Radiator/Hose/Radiator filler cap | 5 | 5 | 5 | 5 | 5 |  | 5 | 5 |  | 4 | 5 |  |  | Inspection, Inspection
Thermostat | 5 | Inspection (GT-R certified NISSAN dealer)
Water pump |  | Inspection (GT-R certified NISSAN dealer)
Water gallery | Removal and Installation (GT-R certified NISSAN dealer)
Cooling fan | 5 | Inspection (GT-R certified NISSAN dealer)
Coolant level (Low)/Contaminated coolant | Inspection
IVIS (INFINITI Vehicle Immobilizer System — NATS) | 1 | 1 |  |  |  |  |  |  |  |  |  |  |  | Work Flow
1 - 6: The numbers refer to the order of inspection.