What is P2122 : Engine Error code Causes Explained
This Guide covers the P2122 engine trouble code, its causes, symptoms, and risks. Understanding this code helps car owners discover throttle/pedal sensor system errors and act quickly to avert engine performance difficulties.
How to Identify a DTCs Number
Understand, this trouble codes (DTCs) are 5 characters: 1 letter, 4 numbers. P-Powertrain indicates the fault code’s location. Generic or manufacturer-specific codes are indicated by the first digit. The second digit denotes the subsystem (7=transmission). The last two numbers describe the issue.
Identifying a DTC (Diagnostic Trouble Code) number like P2122 requires the use of an OBD-II scanner. By connecting the scanner to your vehicle’s OBD-II port, usually located under the dashboard, you can read stored codes from the ECM. The scanner will display the code along with a brief description, allowing you to pinpoint the specific fault and begin troubleshooting.
Causes of P2122 Error Code:
- Faulty Throttle Position Sensor (TPS):
The TPS may send incorrect or low voltage to the PCM. - Wiring Issues:
A short or loose connection in the TPS wiring can cause low voltage to the PCM. - Contaminated Throttle Body.
Carbon buildup in the throttle body can disrupt TPS function, causing faulty readings. - Faulty Engine Control Module (ECM):
A faulty ECM may misinterpret TPS signals. - Faulty Accelerator Pedal Position Sensor (APPS):
A faulty APPS may misread accelerator position.
Risk Level of P2122 Error Code:
The P2122 engine error code, which relates to the throttle/pedal position sensor circuit low input, is considered high risk because it can directly affect the vehicle’s acceleration and throttle response, potentially leading to unsafe driving conditions.
Common Car Brands Affected by P2122 Code:
The P2122 code can affect various vehicles, it is most commonly associated with:
- Ford
- Toyota
- Hyundai
- Honda
- Opel
- Mercedes
- Jeep
Video: P2122 Engine Error code
FAQ’s
What is P2122 Engine Error Code?
P2122 is a throttle/pedal position sensor “A” circuit low input error, indicating the sensor is reporting an unusually low voltage to the engine control module (ECM).
What Causes the P2122 Engine Error Code?
It can be triggered by a faulty throttle/pedal position sensor, damaged wiring or connectors, or issues in the ECM itself.
What is the Risk Level of P2122 Engine Error Code?
The P2122 code is considered high risk because it can affect acceleration, engine performance, and may lead to unsafe driving conditions.
Which Vehicles Are Affected by P2122 Engine Error Code?
This code commonly appears in vehicles from Ford, Toyota, Hyundai, Honda, Opel, Mercedes and Jeep models equipped with electronic throttle control systems.