Nissan Car Altima & Sentra 1999-06

1.8L I4 VIN C Auto 2

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Trouble Code: P0172



Fuel Trim Rich (Bank 1)

Possible Causes:



Base engine "mechanical" fault affecting one or more cylinders
 
EVAP system component has failed or canister fuel saturated
 
Fuel control sensor is out of calibration (i.e., ECT, IAT or MAP)
 
Fuel delivery system supplying too much fuel during cruise or idle periods (e.g., faulty fuel pump, or faulty pressure regulator)
 
Fuel injector(s) is leaking or stuck partially open (one or more)
 
HO2S is contaminated, deteriorated or it has failed
 

Trouble Code: P0180



Fuel Tank Temperature Sensor Circuit Malfunction

Possible Causes:



Fuel tank temperature sensor signal open or shorted to ground
 
Fuel tank temperature sensor is damaged or has failed
 
PCM has failed
 

Trouble Code: P0181



Fuel Tank Temperature Sensor Range/Performance

Possible Causes:



Fuel tank temperature sensor connector is loose (open circuit)
 
Fuel tank temperature sensor signal open or shorted to ground
 
Fuel tank temperature sensor is damaged or has failed
 

Trouble Code: P0182



Fuel Tank Temperature Sensor Circuit Low Input

Possible Causes:



FTT sensor signal circuit is shorted to ground
 
FTT sensor connector is damaged (causing a short circuit)
 
FTT sensor is damaged or has failed
 

Trouble Code: P0183



Fuel Tank Temperature Sensor Circuit High Input

Possible Causes:



FTT sensor connector is damaged (causing an open circuit)
 
FTT sensor signal circuit is open or shorted to VREF
 
FTT sensor ground circuit is open
 
FTT sensor is damaged or has failed
 

Trouble Code: P0217



Engine Over-Temperature

Possible Causes:



Cooling fan control circuit open or shorted to ground
 
Cooling system problems (low coolant, thermostat closed)
 
Blocked air passages at front of the vehicle (recent damage-)
 
Blocked or restricted radiator passages
 

Trouble Code: P0300



Multiple Misfire Detected

Possible Causes:



Air leak in the intake manifold, or in the EGR or PCV system
 
Base engine problem affecting two or more cylinders
 
CMP or CKP sensor signals erratic or out of phase
 
EGR valve stuck open, or EVAP purge system has failed
 
Fuel delivery component fault that affects more than 1 cylinder (i.e., contaminated, dirty or sticking fuel injectors)
 
Ignition system problem affecting two or more cylinders
 
Vehicle driven while quite low or until it ran out of fuel
 

Trouble Code: P0301



Cylinder 1 Misfire Detected

Possible Causes:



Air leak in the intake manifold, or in the EGR or PCV system
 
Base engine mechanical fault that affects only Cylinder 1
 
Fuel delivery component fault that affects only Cylinder 1 (i.e., a contaminated, dirty or sticking fuel injector)
 
Ignition system problem (coil or plug) that affects Cylinder 1
 

Trouble Code: P0302



Cylinder 2 Misfire Detected

Possible Causes:



Air leak in the intake manifold, or in the EGR or PCV system
 
Base engine mechanical fault that affects only Cylinder 2
 
Fuel delivery component fault that affects only Cylinder 2 (i.e., a contaminated, dirty or sticking fuel injector)
 
Ignition system problem (coil or plug) that affects Cylinder 2
 

Trouble Code: P0303



Cylinder 3 Misfire Detected

Possible Causes:



Air leak in the intake manifold, or in the EGR or PCV system
 
Base engine mechanical fault that affects only Cylinder 3
 
Fuel delivery component fault that affects only Cylinder 3 (i.e., a contaminated, dirty or sticking fuel injector)
 
Ignition system problem (coil or plug) that affects Cylinder 3
 

Trouble Code: P0304



Cylinder 4 Misfire Detected

Possible Causes:



Air leak in the intake manifold, or in the EGR or PCV system
 
Base engine mechanical fault that affects only Cylinder 4
 
Fuel delivery component fault that affects only Cylinder 4 (i.e., a contaminated, dirty or sticking fuel injector)
 
Ignition system problem (coil or plug) that affects Cylinder 4
 

Trouble Code: P0325



Knock Sensor Circuit Malfunction (Bank 1)

Possible Causes:



Knock sensor signal circuit is open or shorted to ground
 
Knock sensor signal circuit is shorted to VREF or system power
 
Knock sensor is damaged or has failed
 

Trouble Code: P0327



Knock Sensor Circuit Low Input (Bank 1)

Possible Causes:



Knock sensor signal circuit is shorted to ground
 
Knock sensor is damaged or has failed
 
PCM has failed
 

Trouble Code: P0328



Knock Sensor Circuit High Input (Bank 1)

Possible Causes:



Knock sensor signal circuit is open
 
Knock sensor signal circuit is shorted to VREF or system power
 
Knock sensor is damaged or has failed
 

Trouble Code: P0335



Crankshaft Position Sensor Circuit Malfunction

Possible Causes:



CKP sensor signal circuit is open or shorted to ground
 
CKP sensor signal is shorted to VREF or system power
 
CKP sensor is damaged or has failed
 
PCM has failed
 

Trouble Code: P0340



Camshaft Position Sensor Circuit Malfunction

Possible Causes:



CMP sensor signal circuit is open, shorted to ground or power
 
CMP sensor is damaged or has failed
 
PCM has failed
 

Trouble Code: P0400



EGR System Recirculation Flow

Possible Causes:



Dual EGR/EVAP solenoid is damaged or has failed
 
EGR Gas Temperature sensor is damaged or has failed
 
EGR valve is stuck partially open or closed
 
Exhaust system is damaged or has collapsed
 

Trouble Code: P0402



EGRC-BPT Valve Function Conditions

Possible Causes:



EGRC-BPT solenoid control circuit is open or shorted to ground
 
EGRC-BPT valve vacuum hose is clogged or disconnected
 
Orifice missing in vacuum hose between EGRC-BPT valve and the EGRC solenoid valve
 
Exhaust system is damaged or has collapsed
 

Trouble Code: P0403



EGR Volume Control Valve Circuit Malfunction

Possible Causes:



Volume control valve circuit s open, shorted to ground or to B+
 
Volume control valve is damaged or it has failed
 
PCM has failed
 

Trouble Code: P0420



Catalyst Efficiency Below Normal (Bank 1)

Possible Causes:



Air leaks at the exhaust manifold or in the exhaust pipes
 
Catalytic converter is damaged, contaminated or has failed
 
Front HO2S or rear HO2S is contaminated with fuel or moisture
 
Front HO2S and/or the rear HO2S is loose in the mounting hole
 
Front HO2S older (aged) than the rear HO2S (HO2S is lazy)
 

Trouble Code: P0440



EVAP System Small Leak (0.040") Detected

Possible Causes:



Fuel tank cap loose, damaged or missing, or vacuum line is off
 
EVAP purge solenoid is damaged or has failed
 
EVAP emission canister clogged or restricted
 
TSB 00-060 (7/00) contains information related to this code
 

Trouble Code: P0441



EVAP System Incorrect Purge Flow Detected

Possible Causes:



EVAP canister purge volume control solenoid is stuck closed
 
EVAP canister purge volume control solenoid circuit is shorted
 
EVAP control system pressure sensor is damaged or has failed
 
EVAP emission canister or rubber tube is cracked or restricted
 
EVAP purge port is blocked or restricted
 
EVAP canister vent control valve is damaged or has failed
 

Trouble Code: P0443



EVAP Canister Purge Solenoid Circuit Malfunction

Possible Causes:



Purge solenoid control circuit open, shorted to ground or power
 
Purge solenoid is shorted to system power (B+)
 
Purge solenoid is damaged or has failed
 
PCM has failed
 
TSB 00-060 (7/00) contains information related to this code
 

Trouble Code: P0444



EVAP Purge Volume Control Solenoid Circuit Low Input

Possible Causes:



Canister purge volume control solenoid connector is damaged
 
Canister purge volume control solenoid circuit is shorted
 
Canister purge volume control solenoid is damaged or failed
 
PCM is damaged or has failed
 

Trouble Code: P0445



EVAP Purge Volume Control Solenoid Circuit High Input

Possible Causes:



Canister purge volume control solenoid connector is damaged
 
Canister purge volume control solenoid circuit is open
 
Canister purge volume control solenoid is damaged or failed
 
PCM is damaged or has failed
 

Trouble Code: P0446



EVAP Vent Control Solenoid Circuit Malfunction

Possible Causes:



Vent solenoid circuit open, shorted to ground or to power (B+)
 
Vent control solenoid is damaged or has failed
 
PCM has failed
 
TSB 00-060 (7/00) contains information related to this code
 

Trouble Code: P0447



EVAP Canister Vent Control Solenoid Circuit Malfunction

Possible Causes:



Canister vent control solenoid connector is damaged or loose
 
Canister vent control solenoid circuit is open (high voltage)
 
Canister vent control solenoid is damaged or failed
 
PCM is damaged or has failed
 

Trouble Code: P0452



EVAP System Pressure Sensor Circuit Low Input

Possible Causes:



EVAP pressure sensor circuit connector is damaged (loose)
 
EVAP pressure sensor circuit is shorted to ground
 
EVAP pressure sensor is damaged or has failed
 
PCM is damaged
 

Trouble Code: P0453



EVAP System Pressure Sensor Circuit High Input

Possible Causes:



EVAP pressure sensor circuit connector is damaged (shorted)
 
EVAP pressure sensor circuit is open or shorted to VREF
 
EVAP pressure sensor is damaged or has failed
 
PCM is damaged
 

Trouble Code: P0455



EVAP System Gross Leak (0.080") Detected

Possible Causes:



EVAP control system pressure sensor is damaged or has failed
 
EVAP purge solenoid or canister vacuum line loose or off
 
EVAP purge solenoid is damaged or has failed
 
EVAP emission canister is dirty, restricted or full of water
 
EVAP canister vent control valve is damaged or has failed
 
Fuel tank cap loose, missing or it is the wrong part number
 
Fuel tank temperature sensor is damaged or has failed
 
Fuel tank vacuum relief valve is damaged or has failed
 
Large leak in the EVAP canister or in the fuel tank area
 
ORVR system is damaged or has a large leak in a component
 
Refueling control valve is damaged or has failed
 
Vacuum hose leaking between intake manifold and Purge valve
 

Trouble Code: P0456



EVAP System Very Small Leak (0.020") Detected

Possible Causes:



Canister Purge valve is damaged, leaking or has failed
 
Charcoal canister is loaded with fuel or moisture
 
Fuel filler cap loose, cross-threaded, incorrect part or damaged
 
Fuel tank is cracked (leaking), or a leak exists in the 'O' ring
 
Fuel tank pressure sensor is damaged or has failed
 
Fuel tank overfill check valve is cracked or is damaged
 
Fuel vapor line(s), fuel pipes or hoses damaged or leaking
 
PCM has failed
 

Trouble Code: P0460



Fuel Level Sensor Slosh

Possible Causes:



Fuel level sensor signal open or shorted to ground (intermittent)
 
Fuel level sensor is damaged or has failed
 
PCM has failed
 

Trouble Code: P0461



Fuel Level Sensor Signal Range/Performance

Possible Causes:



Fuel level sensor signal open or shorted to ground
 
Fuel level sensor is damaged (stuck) or has failed
 
PCM has failed
 

Trouble Code: P0462



Fuel Level Sensor Circuit Low Input

Possible Causes:



Fuel level sensor connector is damaged or loose (intermittent)
 
Fuel level sensor signal is shorted to ground
 
Fuel level sensor is damaged (stuck) or has failed
 

Trouble Code: P0463



Fuel Level Sensor Circuit High Input

Possible Causes:



Fuel level sensor connector is damaged or loose (intermittent)
 
Fuel level sensor signal shorted to ground
 
Fuel level sensor is damaged or has failed
 

Trouble Code: P0464



Fuel Level Sensor Circuit Malfunction

Possible Causes:



Fuel level sensor signal circuit is open or shorted to ground
 
Fuel level sensor signal circuit shorted to VREF or power (B+)
 
Fuel level sensor is damaged or has failed
 
PCM is damaged
 

Trouble Code: P0500



Vehicle Speed Sensor Circuit Malfunction

Possible Causes:



ABS/TCS control unit is damaged or has failed
 
Combination meter is damaged or has failed
 
VSS signal circuit is open, shorted to ground or shorted to B+
 
VSS is damaged or has failed
 
PCM has failed
 

Trouble Code: P0505



Idle Air Control, Auxiliary Air Control Valve Circuit Malfunction

Possible Causes:



IACV-AAC valve control circuit is open or shorted to ground
 
IACV-AAC valve control circuit is shorted to system power (B+)
 
IACV-AAC valve is damaged or has failed
 
PCM is damaged or has failed
 

Trouble Code: P0506



Idle Speed Control System RPM Lower Than Expected

Possible Causes:



Air inlet duct is collapsed, loose or air filter element is clogged
 
Base engine problem (i.e., a compression or misfire problem)
 
Idle air inlet passage or throttle bore is dirty or full of deposits
 
Electronic throttle control actuator connector is open
 
Electronic throttle control actuator circuit is open
 
Electronic throttle control actuator is damaged or has failed
 

Trouble Code: P0507



Idle Speed Control System RPM Higher Than Expected

Possible Causes:



Engine vacuum leaks, PCM valve is leaking or the wrong valve
 
Idle air inlet passage or throttle bore is dirty or full of deposits
 
Electronic throttle control actuator connector is shorted
 
Electronic throttle control actuator circuit is shorted
 
Electronic throttle control actuator is damaged or has failed
 

 
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