Nissan Car Altima & Sentra 1999-06

1.6L I4 VIN A Auto 3

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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: 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: P1900



Cooling Fan Control Circuit Malfunction

Possible Causes:



Cooling fan control circuit is open or shorted to ground
 
Cooling fan is damaged or has failed
 
Cooling system component failure (i.e., radiator hose, radiator cap, water pump or thermostat may be stuck partially closed
 

 
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