P1774 – Step Motor Position (Nissan)

Description

The ECM detected abnormal CVT step motor position feedback.

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Symptoms

  • Harsh shifting
  • Limp mode

Causes

  • Motor wear
  • Hydraulic issue
  • Wiring fault

Diagnosis

  • Check motor position
  • Inspect wiring
  • Scan CVT data

Repair

  • Replace motor
  • Repair wiring