The P2142 code is part of the OBD-II diagnostic system, indicating a specific issue related to the vehicle’s exhaust gas recirculation (EGR) system and throttle control.
What Does the P2142 Code Mean?
The P2142 code signifies that there is a high voltage in the Exhaust Gas Recirculation Throttle Control Circuit “A.” This typically suggests an electrical fault associated with the intake throttle actuator, which is responsible for managing the air intake into the engine.
What Causes the P2142 Code?
Several factors can trigger the P2142 code, including:
- Intake throttle actuator failure
- Powertrain Control Module (PCM) failure
- Wiring issues related to the throttle actuator
What Are the Symptoms of the P2142 Code?
The most common symptom associated with the P2142 code is decreased engine performance. Drivers may also notice a lack of responsiveness when accelerating, and in some cases, the vehicle may enter limp mode to prevent further damage.
How Serious Is the P2142 Code?
The severity of the P2142 code is moderate. While it may not pose an immediate threat to vehicle safety, it can lead to decreased engine performance and should be diagnosed promptly to prevent further issues.
How to Diagnose the P2142 Code
To accurately diagnose the P2142 code, a mechanic will typically follow these steps:
- Use an OBD-II scanner to confirm the presence of the P2142 code.
- Inspect the wiring and connectors associated with the intake throttle actuator for damage or corrosion.
- Test the throttle actuator for proper operation.
- Check the PCM for any faults or failures.
Common Repairs for the P2142 Code
Repairs for the P2142 code may include:
- Replacing the intake throttle actuator if it’s found to be faulty
- Repairing or replacing damaged wiring and connectors
- Reprogramming or replacing the Powertrain Control Module (PCM)
How Much Does It Cost to Fix the P2142 Code?
The cost to repair the P2142 code can vary widely depending on the specific issue. On average, repairs can range from $100 to $600, depending on whether parts need to be replaced or if reprogramming is necessary.
Can I Fix the P2142 Code Myself?
If you have experience with automotive electrical systems and access to the necessary tools, you may be able to diagnose and repair minor issues such as wiring problems. However, for more complex issues like replacing the throttle actuator or PCM, it is recommended to consult a professional mechanic.
