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
$20 to $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. P2503 Charging System Output Low High

    The P2503 code means the charging voltage is lower than the computer commanded, so the alternator is not charging enough. The vehicle will only run until the battery is drained. Drive only as far as the shop.

    Step-by-step diagnosis for P2503