Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Nissan-Datsun >> 2004 >> Sentra SE-R >> Repair and Diagnosis >> External Pages >> Different car >> Section 1112 (Continuously Variable Transmission (CVT)) >> DTC P1778 Step Motor - Function >> Diagnostic Procedure

Diagnostic Procedure

WARNING: This page is about a different car, the 2004 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 "GEAR RATIO: 2.37 - 0.43" changes similarly to "STM STEP: -20 - 190" by DATA MONITOR mode. Refer to "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 ".
scientia non olet · About Mike's Workshop Manuals