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Infiniti Nissan Specialist
Infiniti Nissan Specialist, ASE master technician
Category: Nissan
Satisfied Customers: 919
Experience:  Infiniti Nissan specialist. ASE Master technician. 25+ years general automotive experience
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04 nissan maxima se: 3.5 litter with code p0780 (shift malfunction

Resolved Question:

I have a '04 nissan maxima se 3.5 litter with code p0780 (shift malfunction) what needs to be fixed, or replaced?
Submitted: 7 years ago.
Category: Nissan
Expert:  Infiniti Nissan Specialist replied 7 years ago.
Hi there, there are many things that will cause this code. A failing shift solenoid is the most likely culprit. Driving the vehicle with a scan tool hooked up (such as Nissan's Consult II) and monitoring shift solenoid action is how diagnosis is done. The basics can be done at home first by removing the transmission pan to inspect the condition of the transmission. The pan should have very little clutch (dark muddy looking) material in the bottom, and only a very tiny amount of metal flakes. If any large debris are present, or the fluid is heavily burnt and smelly, then the transmission will need to be rebuilt. Pay close attention to the electrical connectors inside the pan and to the control valve body, make sure they are fastened tightly.
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