Nissan Pathfinder 1996-05

3.5L V6 VIN D Auto 5

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Trouble Code: P1447



EVAP Control System Purge Flow Malfunction

Possible Causes:



EVAP canister purge volume control valve stuck closed
 
EVAP canister purge control valve stuck closed
 
EVAP control pressure sensor is damaged or has failed
 
EVAP canister vent control valve is damaged or has failed
 
EVAP rubber tube is blocked, disconnected or bent
 
EVAP canister purge control solenoid is damaged or has failed
 
MAP/BARO switch solenoid vacuum line is blocked or bent
 
EVAP canister is leaking (it may be cracked)
 
EVAP 1-way valve connected improperly or purge port blocked
 

Trouble Code: P1448



EVAP Canister Vent Control Valve Malfunction (Open)

Possible Causes:



EVAP canister vent control valve is damaged or has failed
 
EVAP control pressure sensor is damaged or has failed
 
EVAP canister vent control valve rubber tube is blocked
 
EVAP water separator has failed or canister is full of water
 
EVAP vacuum cut valve is damaged or has failed
 
TSB 00-060 (7/00) contains information related to this code
 

Trouble Code: P1456



EVAP System Very Small Leak (0.020") Detected

Possible Causes:



EVAP control system pressure sensor is damaged or has failed
 
EVAP purge solenoid is damaged or has failed
 
EVAP canister vent control valve is damaged or has failed
 
Fuel tank cap not tightened properly or the wrong part number
 
Fuel tank temperature sensor is damaged or has failed
 
Fuel tank vacuum relief valve is damaged or has failed
 
Very small leak in the EVAP canister or in the fuel tank area
 
ORVR system is damaged or has a small leak in a component
 
Refueling control valve is damaged or has failed
 

Trouble Code: P1464



Fuel Level Sensor Circuit High Input

Possible Causes:



Fuel level sensor signal circuit is open
 
Fuel level sensor circuit is shorted to VREF or system power
 
Fuel level sensor is damaged or has failed
 
PCM has failed
 

Trouble Code: P1490



EVAP Vacuum Cut Valve Bypass Valve Circuit Malfunction

Possible Causes:



EVAP vacuum cut valve bypass valve control circuit is open
 
EVAP vacuum cut valve bypass valve control circuit is shorted
 
EVAP vacuum cut valve bypass valve is damaged or has failed
 
PCM is damaged
 

Trouble Code: P1491



EVAP Vacuum Cut Valve/Bypass Circuit Malfunction

Possible Causes:



EVAP vacuum cut bypass valve is damaged or has failed
 
EVAP vacuum cut valve is damaged or has failed
 
EVAP control system pressure sensor damaged or has failed
 
Vapor hose between fuel tank and cut valve is blocked or bent
 
Vapor hose between canister and vacuum cut valve is plugged
 
EVAP canister is damaged or EVAP purge port at tank is dirty
 
TSB 02-017B (9/02) contains information related to this code
 

Trouble Code: P1492



EVAP Canister Purge Control Solenoid Circuit Malfunction

Possible Causes:



EVAP canister purge control solenoid control circuit is open
 
EVAP canister purge control solenoid control circuit is shorted
 
EVAP canister purge control solenoid is damaged or has failed
 
PCM has failed
 

Trouble Code: P1493



EVAP Canister Purge Control Solenoid Performance (Open)

Possible Causes:



EVAP canister purge control valve is damaged or has failed
 
EVAP canister purge control solenoid valve is damaged/failed
 
EVAP vacuum hoses are clogged or disconnected
 
EVAP canister vent control valve is damaged or has failed
 
EVAP canister is full of water, or the vapor separator has failed
 
TSB 00-060 (7/00) contains information related to this code
 

Trouble Code: P1564



ASCD Steering Switch Circuit Malfunction

Possible Causes:



ASCD steering switch connector is damaged or loose
 
ASCD steering switch signal is open or shorted to ground
 
ASCD steering switch is damaged or has failed
 

Trouble Code: P1572



ASCD Brake Switch Circuit Malfunction

Possible Causes:



ASCD or stop lamp switch is incorrectly installed or positioned
 
ASCD or stop lamp switch circuit is open or shorted to ground
 
ASCD or stop lamp switch is damaged or has failed
 

Trouble Code: P1574



ASCD Vehicle Speed Sensor Signal Malfunction

Possible Causes:



CAN communication connector is damaged or loose (open)
 
CAN communication line is open, shorted to power or to ground
 
Combination Meter VSS circuit is open or shorted to ground
 
Combination Meter is damaged or has failed
 
Vehicle Speed sensor is damaged or has failed
 

Trouble Code: P1605



A/T Diagnosis Communication Line 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
 
TSB 01-004 (01/01) contains information related to this code
 

Trouble Code: P1610



NATS Initialization Failure

Possible Causes:



Refer to the information that explains how to diagnose a problem in the NATS (system) - use a compatible Scan Tool.
 

Trouble Code: P1615



NATS IDIFFERENCE OF KEY

Possible Causes:



Refer to the information that explains how to diagnose a problem in the NATS (system) - use a compatible Scan Tool.
 

Trouble Code: P1705



A/T Throttle Position Sensor Circuit Malfunction

Possible Causes:



TP sensor circuit is open between the sensor and TCM
 
TP sensor circuit is shorted between sensor and TCM
 
TP sensor is damaged or has failed
 
TCM has failed
 

Trouble Code: P1706



A/T Park Neutral Position Switch Circuit Malfunction

Possible Causes:



PNP switch signal circuit is open or shorted to ground
 
PNP switch is shorted to VREF or system power (B+)
 
PNP switch or the PNP relay is damaged or has failed
 
PCM has failed
 

Trouble Code: P1760



A/T Overrun Clutch Solenoid Valve Circuit Malfunction

Possible Causes:



Overrun clutch solenoid control circuit is open
 
Overrun clutch solenoid control circuit is shorted to ground
 
Overrun clutch solenoid is damaged or has failed
 
TCM has failed
 

Trouble Code: P1805



A/T Brake Switch Circuit Malfunction

Possible Causes:



Stop lamp switch connector is damaged or loose (open circuit)
 
Stop lamp switch power circuit is open (test the No. 2 15A fuse)
 
Stop lamp switch is damaged or has failed (it may be shorted)
 

Trouble Code: P2122



Accelerator Pedal Position Sensor 1 Signal Low Input

Possible Causes:



APP1 sensor connector is damaged (it may be shorted)
 
APP1 sensor signal circuit is shorted to ground
 
APP1 sensor signal circuit is damaged or has failed
 
PCM is damaged or has failed
 

Trouble Code: P2123



Accelerator Pedal Position Sensor 1 Signal High Input

Possible Causes:



APP1 sensor connector is damaged (it may be open)
 
APP1 sensor signal circuit is shorted to VREF or system power
 
APP1 sensor signal circuit is damaged or has failed
 

Trouble Code: P2127



Accelerator Pedal Position Sensor 2 Signal Low Input

Possible Causes:



APP2 sensor connector is damaged (it may be shorted)
 
APP2 sensor signal circuit is shorted to ground
 
APP2 sensor signal circuit is damaged or has failed
 
PCM is damaged or has failed
 

Trouble Code: P2128



Accelerator Pedal Position Sensor 2 Signal High Input

Possible Causes:



APP2 sensor connector is damaged (it may be open)
 
APP2 sensor signal circuit is shorted to VREF or system power
 
APP2 sensor signal circuit is damaged or has failed
 

Trouble Code: P2135



Throttle Position Sensor Range/Performance

Possible Causes:



TP1 or TP2 sensor connector is damaged (open or shorted)
 
TP1 sensor signal circuit is open or shorted to ground
 
TP1 sensor signal circuit is damaged or has failed
 
TP2 sensor signal circuit is open or shorted to ground
 
TP2 sensor signal circuit is damaged or has failed
 
PCM is damaged or has failed
 

Trouble Code: P2138



Accelerator Pedal Position Sensor Range/Performance

Possible Causes:



APP1 or APP2 sensor connector is damaged (open or shorted)
 
APP1 sensor signal circuit is open or shorted to ground
 
APP1 sensor signal circuit is damaged or has failed
 
APP2 sensor signal circuit is open or shorted to ground
 
APP2 sensor signal circuit is damaged or has failed
 
PCM is damaged or has failed
 

Trouble Code: U1000



Controller Area Network Line Malfunction

Possible Causes:



CAN connector is damaged or is disconnected
 
CAN communication line is open, shorted to ground or to power
 
One of the modules is shorted and pulling the CAN voltage low
 

Trouble Code: U1001



Controller Area Network Line Malfunction

Possible Causes:



CAN connector is damaged or is disconnected
 
CAN communication line is open, shorted to ground or to power
 
One of the modules is shorted and pulling the CAN voltage low
 

 
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