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
$150 to $2,000
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. P0731 Gear 1 Incorrect Ratio High

    The P0731 code means the ratio between the input speed and the output speed does not match what first gear should give. It is a slipping code, because the clutches for that gear are not holding the way they should. The condition of the fluid decides whether the repair is cheap or a rebuild.

    Step-by-step diagnosis for P0731