Possible causes
– Transmission Fluid Pressure Sensor B harness is open or shorted
– Transmission Fluid Pressure Sensor B poor electrical connection
– Faulty Transmission Fluid Pressure Sensor B
– Transmission Valve Bosy
– Transmission Fluid Pressure Sensor B poor electrical connection
– Faulty Transmission Fluid Pressure Sensor B
– Transmission Valve Bosy
Tech notes
There is a service bulletin for the P0845 code for the following Nissan Models:
2007-2008 Nissan Altima
2007-2008 Nissan Rogue
2007-2008 Nissan Sentra
The bulletin suggest replacing the transmission valve body.
Nissan Factory Service Bulletin OBDII Code P0845
2007 Nissan Maxima
Nissan Factory Service Bulletin OBDII Code P0845
For Nissan vehicles with with CVT transmission, Nissan has extended the CVT warranty from 5 years/60,000 to 10 years/120,000 miles
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
P0845 NISSAN Description
The transmission fluid pressure sensor B (primary pressure sensor) detects primary pressure of Continuously Variable Transmission (CVT) and sends Transmission Control Module (TCM) the signal.
NISSAN Technical Service Bulletins for P0845 code
2007 NISSAN ROGUE POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM, PCM)
2007 NISSAN SENTRA POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM, PCM)
2008 NISSAN ALTIMA COUPE POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM, PCM)
2008 NISSAN ROGUE POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM, PCM)
2008 NISSAN SENTRA POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM, PCM)
2007 NISSAN ALTIMA ENGINE AND ENGINE COOLING:ENGINE
2007 NISSAN ALTIMA POWER TRAIN:MANUAL TRANSMISSION
2007 NISSAN ALTIMA POWER TRAIN:AUTOMATIC TRANSMISSION
2007 NISSAN SENTRA ENGINE AND ENGINE COOLING:ENGINE
2007 NISSAN SENTRA POWER TRAIN:MANUAL TRANSMISSION