Multi-code OBD2 diagnosis

Enter all the codes your scanner showed, not just the first one. We give you the overall severity, whether you can keep driving, the order in which to check them and how they relate to each other.

Summary

Overall severity
High
Can I keep driving?
Yes, but with caution
Estimated cost
$200 to $3,500
Codes analyzed
1 of 1

The order below is the recommended one: first the codes that can cause the others. After each repair, clear the codes and check which ones come back.

Order of inspection

  1. P1778 CVT Step Motor Function (Nissan) High

    On Nissan and Infiniti vehicles, the P1778 code means the CVT step motor is not working as commanded. You may notice high engine speed with little forward motion. Other brands may define this number differently.

    Step-by-step diagnosis for P1778