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
Medium
Can I keep driving?
Yes, but with caution
Estimated cost
$0 to $700
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. P1604 Engine Startability Malfunction (Toyota) Medium

    On Toyota and Lexus vehicles, the P1604 code means a startability malfunction: the engine takes a long time to start or will not start. It does not point to one part. It tells you something is preventing a normal start.

    Step-by-step diagnosis for P1604