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
Start by inspecting the transmission fluid level and condition, and change fluid if necessary.
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 INFINITI OBD Code Description