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Transmission is not shifting gears while driving. I got codes p0840 and p0845.

Vehicle: 2008 Nissan Maxima SE 3.5L V6

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For the Primary Oil Pressure Sensor Assembly (P0845), you can access by removing the transmission pan

Nissan Maxima Primary Oil Pressure Sensor Assembly Location

For the Secondary Oil Pressure Sensor Assembly (P0840), you have to remove the Transmission Valve Body.

Nissan Maxima Secondary Oil Pressure Sensor Assembly Location

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