LEMON Manuals: Even more car manuals for everyone
Home >> Nissan-Datsun >> 2004 >> Sentra SE-R Spec V >> Repair and Diagnosis >> External Pages >> Different car >> Section 846 (Continuously Variable Transmission (CVT)) >> DTC P1778: Step Motor - Function >> Diagnostic Procedure

Diagnostic Procedure

WARNING: This page is about a different car, the 2003 Nissan Murano. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK STEP MOTOR 
    • It is monitoring whether CVT ratio: 2.37 - 0.43 changes similarly to STM STEP: -20 - 190 by DATA MONITOR mode.
    • If no CONSULT-II, inspect the engine speed (rise and descend), vehicle speed, throttle opening angle, and check shift change.

    OK or NG 

    1. OK: INSPECTION END 
    2. NG: Replace the transaxle assembly. Refer to REMOVAL AND INSTALLATION .