The Ford P0122 Code is a diagnostic trouble code (DTC) which indicates a circuit issue with the throttle/pedal position sensor/switch. This code is set when the electronic throttle control (ETC) TP1 signal is too low. Common causes of this issue include a broken TP1 circuit, a TP1 circuit that is shorted to ground, or a damaged TP1 sensor. This concern exhibits a symptom of limited power, which can be diagnosed by reading a TP1 PID reading of less than 0.25 volt in ignition ON, engine OFF or ignition ON, engine running. There are several related service bulletins available, such as 03B03, 09-23-5, 14-0215, 15-0036, 16-0163, and 18-2062.
Causes and Solutions for Ford P0122 Code
| Cause | Solution |
|---|---|
| TP1 circuit open | Check the wiring and connections for the TP1 circuit and repair as needed. |
| TP1 circuit short to ground | Inspect the wiring and connections for the TP1 circuit and replace the circuit as needed. |
| Damaged TP1 sensor | Replace the TP1 sensor to fix the issue. |
| Symptom of limited power | Check the TP1 PID reading and, if less than 0.25 volt in ignition ON, engine OFF or ignition ON, engine running, repair the issue. |
When diagnosing the Ford P0122 Code, it is important to take into account the various causes that can lead to this code being set. Common causes of this issue include an open TP1 circuit, a TP1 circuit that is shorted to ground, or a damaged TP1 sensor. Additionally, a symptom of limited power can be an indication of this code being set, which can be determined by a TP1 PID reading. Fortunately, there are several solutions to these causes, such as checking the wiring and connections for the TP1 circuit, replacing the circuit, replacing the TP1 sensor, and checking the TP1 PID reading. To help with diagnosis, there are also several related service bulletins available. By understanding the causes and solutions of the Ford P0122 Code, a technician can quickly diagnose and repair the issue.
Conclusion
The Ford P0122 Code is an indication of a circuit issue with the throttle/pedal position sensor/switch. To diagnose the issue, it is important to understand the various causes and solutions, such as open TP1 circuits, shorted TP1 circuits, damaged TP1 sensors, and TP1 PID readings. With the help of related service bulletins, a technician can quickly diagnose and repair the Ford P0122 Code.
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