Service light fixing code P1777?

2009 NISSAN MURANO
199,000 MILES • 3.5L • 6 CYL • 4WD • AUTOMATIC
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LIONELL8732
I need help finding and fixing code P1777. car wouldn't go over certain speeds.
Oct 10, 2025 at 7:33 PM
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STRAILER
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Yep, these cars had a problem with the CVT transmission, does it sound like the engine is revving but the power is not getting to the wheels? I would check the transmission fluid to see if it is burnt, also this code has to do with the stepper motor which controls the variable pully function.

P1777 on a 2009 Murano = CVT stepper (ratio-control) motor circuit fault

This stepper motor is inside the transmission so it will need to be removed to be repaired/rebuilt.
Oct 11, 2025 at 9:46 AM
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STRAILER
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  • ASE Certified Mechanic
Please respond
Oct 14, 2025 at 12:47 PM
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