Nissan Car Altima & Sentra 1999-06

2.0L L4 - Auto 2

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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: 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: 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: P0450



EVAP Pressure Sensor Circuit Malfunction

Possible Causes:



EVAP pressure sensor circuit is open or shorted to ground
 
EVAP pressure sensor circuit is shorted to VREF or power (B+)
 
EVAP pressure sensor is damaged or has failed
 
PCM is damaged
 
TSB 00-060 (7/00) contains information related to this code
 

Trouble Code: P0455



EVAP System Gross Leak (0.080") Detected

Possible Causes:



Fuel tank cap is loose or damaged, or vacuum line is loose
 
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: 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 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: 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:



VSS signal circuit is open or shorted to ground
 
VSS signal circuit is shorted to VREF or system power (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: P0510



Closed Throttle Position Switch Circuit Malfunction

Possible Causes:



Closed throttle position switch signal circuit is open or grounded
 
Closed throttle position switch signal circuit is shorted to power
 
Closed throttle position switch or TP sensor damaged or failed
 
PCM has failed
 

Trouble Code: P0600



TCM (A/T) Communication Line Circuit Malfunction

Possible Causes:



TCM communication line circuit is open or shorted to ground
 
TCM communication line circuit shorted to VREF or power (B+)
 
TCM or PCM has failed
 

Trouble Code: P0705



Park Neutral Position Switch Circuit Malfunction

Possible Causes:



P/N switch signal circuit is open or shorted to ground
 
P/N switch signal circuit is shorted to VREF or system power
 
P/N switch is damaged or has failed
 
PCM has failed
 

Trouble Code: P0710



Transmission Fluid Temperature Sensor Circuit Malfunction

Possible Causes:



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

Trouble Code: P0720



TCM Revolution Sensor Circuit Malfunction

Possible Causes:



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

Trouble Code: P0725



TCM Engine Speed Signal

Possible Causes:



Engine speed signal is open or shorted to ground
 
Engine speed sensor signal shorted to VREF or power (B+)
 
Engine speed sensor is damaged or has failed
 
PCM has failed
 

Trouble Code: P0731



A/T First Gear Circuit Malfunction

Possible Causes:



Shift Solenoid 'A' is stuck in open position
 
Shift Solenoid 'B' is stuck in open position
 

Trouble Code: P0732



A/T Second Gear Circuit Malfunction

Possible Causes:



Control valve sticking or binding
 
Solenoid valve is damaged or not operating
 

Trouble Code: P0733



A/T Third Gear Circuit Malfunction

Possible Causes:



Control valve sticking, solenoid valve damaged or not operating
 
Servo piston or brake band is damaged or is not operating
 

Trouble Code: P0734



A/T Fourth Gear Circuit Malfunction

Possible Causes:



Oil pump is damaged, or the TCC is not operating
 
Shift Solenoid 'B' may be stuck closed
 

Trouble Code: P0740



A/T TCC Solenoid Circuit Malfunction

Possible Causes:



TCC solenoid control circuit open or shorted to ground
 
TCC solenoid control circuit shorted to system power (B+)
 
TCC solenoid is damaged or has failed
 
PCM has failed
 

Trouble Code: P0744



A/T Servo Valve Solenoid Circuit Malfunction

Possible Causes:



Servo valve solenoid control circuit open or shorted to ground
 
Servo valve solenoid control circuit shorted to system power
 
Servo valve solenoid is damaged or has failed
 
PCM has failed
 

Trouble Code: P0745



A/T Low Pressure Solenoid Circuit Malfunction

Possible Causes:



Low pressure solenoid control circuit open or shorted to ground
 
Low pressure solenoid control circuit shorted to system power
 
Low pressure solenoid is damaged or has failed
 
PCM has failed
 

Trouble Code: P0750



A/T Shift Solenoid 'A' Circuit Malfunction

Possible Causes:



Shift Solenoid 'A' control circuit open or shorted to ground
 
Shift Solenoid 'A' control circuit shorted to VREF or power (B+)
 
Shift Solenoid 'A' is damaged or has failed
 
PCM has failed
 

Trouble Code: P0755



A/T Shift Solenoid 'B' Circuit Malfunction

Possible Causes:



Shift Solenoid 'B' control circuit open or shorted to ground
 
Shift Solenoid 'B' control circuit shorted to VREF or power (B+)
 
Shift Solenoid 'B' is damaged or has failed
 
PCM has failed
 

Trouble Code: P1108



Manifold Absolute Pressure Sensor Circuit Malfunction

Possible Causes:



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

Trouble Code: P1110



Intake Valve Timing Control Performance

Possible Causes:



Intake valve timing control position sensor or its circuit is open
 
Intake valve timing position control sensor is damaged or failed
 
Signal pickup portion of camshaft is contaminated with debris
 

Trouble Code: P1111



Intake Valve Timing Control Circuit Malfunction

Possible Causes:



Intake valve timing control solenoid circuit is open
 
Intake valve timing control solenoid circuit is shorted to ground
 
Intake valve timing position control solenoid is damaged/failed
 
PCM has failed
 

Trouble Code: P1126



Thermostat Malfunction (Stuck Open)

Possible Causes:



Inspect for low coolant level
 
Inspect for incorrect coolant mixture
 
Check the operation of the thermostat (it may be stuck open)
 

Trouble Code: P1132



Swirl Control Valve Circuit Malfunction

Possible Causes:



Swirl Control valve control circuit is open or shorted
 
Swirl Control valve control circuit is shorted to system power
 
Swirl Control valve is damaged or has failed
 
PCM has failed
 

Trouble Code: P1137



Swirl Control Valve Control Position Sensor Circuit Malfunction

Possible Causes:



Swirl Control valve control position sensor open or shorted
 
Swirl Control valve control position sensor is damaged
 
Swirl Control valve control position sensor has failed
 
PCM has failed
 

Trouble Code: P1138



Swirl Control Valve Control Performance

Possible Causes:



Swirl Control valve circuit is open or shorted (intermittent fault)
 
Swirl Control valve is contaminated, damaged or has failed
 
PCM has failed
 

Trouble Code: P1140



Intake Valve Timing Control Position Sensor Circuit Malfunction (Bank 1)

Possible Causes:



Intake valve timing control position sensor open or shorted
 
Intake valve timing control position sensor is damaged
 
Intake valve timing control position sensor has failed
 
PCM has failed
 

Trouble Code: P1148



Closed Loop Malfunction Detected (Bank 1)

Possible Causes:



A/FS or HO2S signal circuit is open or shorted to ground
 
A/FS or HO2S heater is damaged or has failed
 
A/FS or HO2S is damaged, contaminated or has failed
 
PCM has failed
 

Trouble Code: P1168



Closed Loop Malfunction Detected (Bank 2)

Possible Causes:



A/FS or HO2S signal circuit is open or shorted to ground
 
A/FS or HO2S heater is damaged or has failed
 
A/FS or HO2S is damaged, contaminated or has failed
 
PCM has failed
 

Trouble Code: P1217



Engine Over-Temperature Condition

Possible Causes:



Engine coolant low or an incorrect coolant mixture exists
 
Engine cooling fan circuit(s) open or shorted to ground
 
Engine cooling fan is damaged or has failed
 
Check cooling system components (radiator hose, cap, etc.)
 
Check the thermostat operation (it may be stuck partly closed)
 

Trouble Code: P1271



A/F Sensor-11 (Bank 1 Sensor 1) Circuit Malfunction

Possible Causes:



Air Fuel Sensor (AFS) signal circuit is open
 
Air Fuel Sensor (AFS) signal circuit is shorted to ground
 
Air Fuel Sensor (AFS) is damaged or has failed
 
PCM had failed
 

Trouble Code: P1272



Air Fuel Sensor (Bank 1 Sensor 1) High Input

Possible Causes:



Air Fuel Sensor (AFS) signal circuit is open
 
Air Fuel Sensor (AFS) signal circuit is shorted to VREF
 
Air Fuel Sensor (AFS) signal circuit is shorted to power (B+)
 
Air Fuel Sensor (AFS) is damaged or has failed
 

Trouble Code: P1273



Air Fuel Sensor (Bank 1 Sensor 1) Circuit Lean Shift

Possible Causes:



Air Fuel Sensor (AFS) is damaged or has failed
 
Air Fuel Sensor (AFS) heater is damaged or has failed
 
Intake air leaks somewhere in the engine or intake area
 
Fuel system problem (low fuel pressure, restricted injectors)
 

Trouble Code: P1274



Air Fuel Sensor (Bank 1 Sensor 1) Circuit Rich Shift

Possible Causes:



Air Fuel Sensor (AFS) is damaged or has failed
 
Air Fuel Sensor (AFS) heater is damaged or has failed
 
Intake air leaks somewhere in the engine or intake area
 
Fuel system problem (low fuel pressure, restricted injectors)
 

 
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