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?
- No, stop and have it checked
- Estimated cost
- $50 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
P2122 Throttle/Pedal Position Sensor/Switch D Circuit Low Input High
The P2122 code means the main gas pedal signal fell below the lowest value it can legitimately have. It is an electrical fault that leaves the vehicle in limp mode. Its partner is P2127, which covers the second signal, and when both show up together the problem is in something they share.