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
- $60 to $350
- 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
P2121 Throttle/Pedal Position Sensor/Switch D Circuit Range/Performance High
The P2121 code means the pedal or throttle position sensor D is sending a reading that is electrically valid but does not match what the computer expects. The main effect is limp mode with limited power. Check the connector and wiring before you replace the sensor.