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
$0 to $1,500
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. P0633 Immobilizer Key Not Programmed - ECM/PCM High

    The P0633 code means the computer does not have the vehicle keys registered. It is normally solved by programming or configuring the module with the right equipment.

    Step-by-step diagnosis for P0633