Symptom Table
SYSTEM - BASIC ENGINE CONTROL SYSTEM
| SYMPTOM | Reference | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | Low pressure fuel pump circuit | 1 | 1 | 2 | 3 | 2 | 2 | 2 | 3 | 2 | Component Function Check | ||||
| Fuel pressure regulator system | 3 | 3 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | Work Procedure | ||||
| Fuel injector circuit | 1 | 1 | 2 | 3 | 2 | 2 | 2 | 2 | Component Function Check | ||||||
| Evaporative emission system | 3 | 3 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | Inspection | ||||
| FRP sensor circuit | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 2 | DTC DescriptionDTC Description | ||||||
| High pressure fuel pump circuit | 4 | 3 | Component Function Check | ||||||||||||
| Air | Positive crankcase ventilation system | 3 | 3 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | Inspection | ||
| Incorrect idle speed adjustment | 1 | 1 | 1 | 1 | 1 | Work Procedure | |||||||||
| Electric throttle control actuator | 1 | 1 | 2 | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | DTC DescriptionDTC Description | |||
| Ignition | Incorrect ignition timing adjustment | 3 | 3 | 1 | 1 | 1 | 1 | 1 | 1 | Work Procedure | |||||
| Ignition circuit | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 2 | Component Function Check | ||||||
| Main power supply and ground circuit | 2 | 2 | 3 | 3 | 3 | 3 | 3 | 2 | 3 | Diagnosis Procedure | |||||
| Mass air flow sensor circuit | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 2 | DTC Description | ||||||
| Engine coolant temperature sensor 1 circuit | 3 | 3 | 3 | DTC Description | |||||||||||
| Air fuel ratio (A/F) sensor 1 circuit | DTC DescriptionDTC DescriptionDTC DescriptionDTC DescriptionDTC Description | ||||||||||||||
| Throttle position sensor circuit | 2 | 2 | DTC DescriptionDTC DescriptionDTC DescriptionDTC DescriptionDTC Description | ||||||||||||
| Accelerator pedal position sensor circuit | 3 | 2 | 1 | DTC DescriptionDTC DescriptionDTC Description | |||||||||||
| Knock sensor circuit | 2 | 3 | DTC Description | ||||||||||||
| Engine oil temperature sensor | 4 | 2 | 3 | DTC Description | |||||||||||
| Engine oil pressure sensor | 4 | 4 | 3 | 3 | 3 | 3 | DTC Description | ||||||||
| Crankshaft position sensor circuit | 2 | 2 | DTC Description | ||||||||||||
| Camshaft position sensor circuit | 3 | 2 | DTC Description | ||||||||||||
| Vehicle speed signal circuit | 2 | 3 | 3 | 3 | DTC Description | ||||||||||
| Power steering pressure sensor circuit | 2 | 3 | 3 | DTC Description | |||||||||||
| ECM | 2 | 2 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | - | |||
| Intake valve timing control solenoid valve circuit | 3 | 2 | 1 | 3 | 2 | 2 | 3 | 3 | DTC Description | ||||||
| Exhaust valve timing control solenoid valve circuit | 3 | 2 | 1 | 3 | 2 | 2 | 3 | 3 | DTC DescriptionDTC Description | ||||||
| Exhaust valve timing control position sensor | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | DTC Description | ||||||
| Exhaust gas temperature sensor | 5 | DTC DescriptionDTC Description | |||||||||||||
| VVEL control module | 3 | 4 | 4 | 3 | DTC DescriptionDTC Description | ||||||||||
| VVEL actuator motor | 3 | 4 | 4 | 3 | DTC Description | ||||||||||
| VVEL actuator motor relay | 3 | 4 | 4 | 3 | DTC Description | ||||||||||
| VVEL control shaft position sensor | 3 | 4 | 4 | 3 | DTC Description | ||||||||||
| PNP signal circuit | 3 | 3 | 3 | 3 | 3 | DTC Description | |||||||||
| Refrigerant pressure sensor circuit | 2 | 3 | 3 | 4 | Component Function Check | ||||||||||
| Electrical load signal circuit | 3 | Component Function Check | |||||||||||||
| Air conditioner circuit | 2 | 2 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 2 | Symptom Table | |||
| ABS actuator and electric unit (control unit) | 4 | Work Flow | |||||||||||||
| Battery current sensor | 4 | 5 | 5 | 3 | DTC DescriptionDTC DescriptionDTC Description | ||||||||||
| Heated oxygen sensor 2 | 6 | 6 | 6 | 6 | 5 | DTC DescriptionDTC DescriptionComponent Inspection (HO2 sensor 2) | |||||||||
1 - 6: The numbers refer to the order of inspection. (continued on next chart)
SYSTEM - ENGINE MECHANICAL and OTHER
| SYMPTOM | Reference | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | |||||||||||
| Fuel piping | 5 | 5 | 5 | 5 | 5 | 5 | Quick Connector | ||||||||
| Vapor lock | - | ||||||||||||||
| 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 | Inspection | |||||||
| Air cleaner | Exploded View | ||||||||||||||
| Air leakage from air duct (Mass air flow sensor - electric throttle control actuator) | 5 | 5 | 5 | 5 | Inspection | ||||||||||
| Electric throttle control actuator | DTC Description | ||||||||||||||
| Air leakage from intake manifold/Collector/Gasket | Exploded View | ||||||||||||||
| Cranking | Battery | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | Work Flow | |||||
| Generator circuit | Work Flow (With 165-DSS-5000P) *, Work Flow (Without 165-DSS-5000P) *. | ||||||||||||||
| Starter circuit | 3 | Work Flow (With 165-DSS-5000P) *, Work Flow (Without 165-DSS-5000P) *. | |||||||||||||
| Signal plate | 6 | Exploded View | |||||||||||||
| PNP signal | 4 | DTC Description | |||||||||||||
| Engine | Cylinder head | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | Inspection | |||||
| Cylinder head gasket | 4 | 3 | |||||||||||||
| Cylinder block | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 4 | Inspection | |||||
| Piston | |||||||||||||||
| Piston ring | |||||||||||||||
| Connecting rod | |||||||||||||||
| Bearing | |||||||||||||||
| Crankshaft | |||||||||||||||
| Valve mechanism | Timing chain | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | Inspection | |||||
| Camshaft | Inspection | ||||||||||||||
| Intake valve timing control | Exploded View | ||||||||||||||
| Intake valve | 3 | Inspection | |||||||||||||
| Exhaust valve | |||||||||||||||
| Exhaust | Exhaust manifold/Tube/Muffler/Gasket | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | InspectionChecking Exhaust System | |||||
| Three way catalyst | |||||||||||||||
| Lubrication | Oil pan/Oil strainer/Oil pump/Oil filter/Oil gallery/Oil cooler | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | InspectionInspectionInspectionInspectionInspection | |||||
| Oil level (Low)/Filthy oil | Inspection | ||||||||||||||
| Cooling | Radiator/Hose/Radiator filler cap | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 4 | 5 | System Inspection | ||||
| Water pump | Inspection | ||||||||||||||
| Water gallery | Inspection | ||||||||||||||
| Cooling fan | 5 | Inspection | |||||||||||||
| Coolant level (Low)/Contaminated coolant | System Inspection | ||||||||||||||
| Multi-way control valve | 4 | Inspection | |||||||||||||
| IVIS (INFINITI Vehicle Immobilizer System - NATS) | 1 | 1 | Work Flow | ||||||||||||
1 - 6: The numbers refer to the order of inspection
*: For the details of the 165-DSS-5000P, refer to Special Service Tool .