Nissan P1777: Step Motor Circuit

Is your scanner showing Nissan P1777?
No worries. We'll show you what it means and how to deal with it.

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OBDCodex, Editor

Nissan P1777: Step Motor Circuit

DIY Difficulty Level
Repair Cost
Can I Still Drive?
Yes (Short-term only)

What Does The Nissan P1777 Code Mean?

The step motor changes the step with turning 4 coils ON/OFF according to the signal from TCM. As a result, the flow of line pressure to primary pulley is changed and pulley ratio is controlled.

This is an OBD-II self-diagnostic item. Diagnostic trouble code P1777 is detected under the following conditions: When operating step motor ON and OFF, there is no proper change in the voltage of TCM terminal which corresponds to it.

What Are The Potential Causes Of The Nissan P1777 Code?

  • Step motor
  • Harness or connectors (Step motor circuit is open or shorted. )

Recommended Parts

Below are some recommended auto parts to help you address the trouble code affecting your vehicle and get it running smoothly again:

>>> WORKPRO 582-piece Crimp Terminals, Wire Connectors, Heat Shrink Tube, Electrical Repair Kit
>>> Twippo 372Pcs Waterproof Wire Connectors Kit
>>> Transmission CVT Step Motor JF011E RE0F10E for Nissan

Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!

Check This Video For Reference

Reference Sources

Nissan P1777, DTCDECODE.

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