Nissan Sentra B18 (2020-2025) Service Manual: Engine Control System
Symptom Table
Symptom Table
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 |
||||
|
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 |
System Description |
||||
|
Fuel rail pressure sensor circuit |
1 |
1 |
2 |
2 |
2 |
2 |
2 |
2 |
DTC 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 |
POSITIVE CRANKCASE VENTILATION : Periodic Maintenance |
||
|
Incorrect idle speed adjustment |
1 |
1 |
1 |
1 |
1 |
IDLE SPEED : Periodic Maintenance |
|||||||||
|
Electric throttle control actuator |
1 |
1 |
2 |
3 |
3 |
2 |
2 |
2 |
2 |
2 |
2 |
DTC Description, DTC Description |
|||
|
Intake manifold runner control valve circuit |
4 |
4 |
DTC Description |
||||||||||||
|
Ignition |
Incorrect ignition timing adjustment |
3 |
3 |
1 |
1 |
1 |
1 |
1 |
1 |
IGNITION TIMING : Periodic Maintenance |
|||||
|
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 |
|||||
|
Main power supply and ground circuit |
1 |
1 |
2 |
2 |
2 |
2 |
2 |
2 |
Diagnosis Procedure |
||||||
|
Engine coolant temperature sensor circuit |
3 |
3 |
3 |
DTC Description |
|||||||||||
|
Air fuel ratio (A/F) sensor 1 circuit |
DTC Description, DTC Description, DTC Description |
||||||||||||||
|
Throttle position sensor circuit |
2 |
2 |
DTC Description, DTC Description, DTC Description, DTC Description, DTC Description, |
||||||||||||
|
Accelerator pedal position sensor circuit |
3 |
2 |
1 |
DTC Description, DTC Description, DTC Description |
|||||||||||
|
Knock sensor circuit |
2 |
3 |
DTC Description |
||||||||||||
|
Engine oil temperature sensor circuit |
4 |
2 |
3 |
DTC Description |
|||||||||||
|
Crankshaft position sensor circuit |
2 |
2 |
DTC Description |
||||||||||||
|
Intake camshaft position sensor circuit |
3 |
2 |
DTC Description |
||||||||||||
|
Nissan Sentra Vehicle speed signal circuit |
2 |
3 |
3 |
3 |
DTC Description |
||||||||||
|
ECM |
2 |
2 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
DTC Description |
|||
|
Electric intake valve timing control module circuit |
3 |
3 |
3 |
DTC Description, DTC Description |
|||||||||||
|
Electric intake valve timing control actuator circuit |
3 |
DTC Description, DTC Description |
|||||||||||||
|
Exhaust valve timing control solenoid valve circuit |
3 |
2 |
1 |
3 |
2 |
2 |
3 |
3 |
DTC Description, DTC Description |
||||||
|
Exhaust camshaft position sensor circuit |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
DTC Description |
||||||
|
Transmission range switch |
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 |
Work Flow(Automatic air conditioner), Work Flow(Manual air conditioner) |
|||
|
ABS actuator and electric unit (control unit) |
4 |
Work Flow |
|||||||||||||
1 - 6: The numbers refer to the order of inspection.
(continued on next table)
|
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 |
|||||||||||
|
Fuel piping |
5 |
5 |
5 |
5 |
5 |
5 |
Inspection |
||||||||
|
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 |
Inspection |
||||||||||||||
|
Air leakage from air duct (Mass air flow sensor — electric throttle control actuator) |
5 |
5 |
5 |
5 |
Inspection |
||||||||||
|
Electric throttle control actuator |
Exploded View |
||||||||||||||
|
Air leakage from intake manifold/Collector/Gasket |
— |
||||||||||||||
|
Cranking |
Battery |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
Work Flow (With 165-DSS-5000P)(With 165-DSS-5000P), Work Flow (Without 165-DSS-5000P)(Without 165-DSS-5000P) |
|||||
|
Generator circuit |
Work Flow (With 165-DSS-5000P)(With 165-DSS-5000P), Work Flow (Without 165-DSS-5000P)(Without 165-DSS-5000P) |
||||||||||||||
|
Starter circuit |
3 |
Work Flow (With 165-DSS-5000P)(With 165-DSS-5000P), Work Flow (Without 165-DSS-5000P)(Without 165-DSS-5000P) |
|||||||||||||
|
Signal plate |
6 |
Inspection |
|||||||||||||
|
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 |
Component Inspection |
||||||||||||||
|
Exhaust valve timing control |
Component Inspection |
||||||||||||||
|
Intake valve |
3 |
Inspection |
|||||||||||||
|
Exhaust valve |
|||||||||||||||
|
Exhaust |
Exhaust manifold/Tube/Muffler/Gasket |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
Inspection, Inspection |
|||||
|
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, Inspection, Inspection |
|||||
|
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 |
|||||||||||||
|
Water pump |
Exploded View |
||||||||||||||
|
Water gallery |
Inspection |
||||||||||||||
|
Cooling fan |
5 |
Exploded View |
|||||||||||||
|
Coolant level (Low)/Contaminated coolant |
Inspection |
||||||||||||||
1 - 6: The numbers refer to the order of inspection.
Other materials:
U1040 Eng Comm Circuit
Dtc Description
DTC Description
DTC DETECTION LOGIC
DTC
CONSULT screen terms
(Trouble diagnosis
content)
DTC detection
condition
...
Security systems
Your Nissan Sentra may be equipped with two different types of security systems
designed to enhance vehicle protection and theft deterrence:
Vehicle security system (if so equipped)
NISSAN Vehicle Immobilizer System
Vehicle security system
The vehicle security system on the Nissan Se ...
C161b-86 Abs System
Dtc Description
DTC Description
DTC DETECTION LOGIC
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detection condition
...