Possible causes
– Low transmission fluid level
– Dirty transmission fluid
– Shift solenoids
– Transmission mechanical problems
– Transmission hydraulic control circuit
– Dirty transmission fluid
– Shift solenoids
– Transmission mechanical problems
– Transmission hydraulic control circuit
Tech description
There is a Nissan bulletin for the following models:
1995-1996 Nissan Maxima
1995-1997 Nissan Sentra/200SX
1996-1997 Nissan Truck
1995-1997 Nissan Altima
1996-1997 Nissan Pathfinder
1995-1996 Nissan 240SX
1996-1997 Nissan Quest
Nissan Factory Service Bulletin OBDII Code P0731
2002 Nissan Sentra
2002 Nissan Altima
2002 Nissan Sentra and Altima Factory Service Bulletin OBDII Code P0731
When is the obd code mean?
P0731 is detected when A/T cannot be shifted to the 1st gear position even if electrical circuit is good.
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
– Incorrect transmission shifting
– Incorrect transmission shifting
P0731 NISSAN OBD Code Description