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
Low
Can I keep driving?
Yes, no immediate risk
Estimated cost
$60 to $400
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. P2402 Evaporative Emission System Leak Detection Pump Control Circuit High Low

    The P2402 code means the computer sees high voltage in the control circuit of the EVAP leak detection pump, either an open circuit or a short to voltage. The system cannot check for fuel vapor leaks and the EVAP monitor does not complete. It does not affect how the car drives, but it can keep you from passing an emissions inspection.

    Step-by-step diagnosis for P2402