Service light fixing code P1777?

2009 NISSAN MURANO
199,000 MILES • 3.5L • 6 CYL • 4WD • AUTOMATIC
Avatar
LIONELL8732
  • MEMBER
  • 148 POSTS
I need help finding and fixing code P1777. car wouldn't go over certain speeds.
Oct 10, 2025 at 7:33 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
Advertisement
Avatar
STRAILER
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 54,178 POSTS
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
Advertisement
Avatar
STRAILER
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 54,178 POSTS
Please respond
Oct 14, 2025 at 12:47 PM