The P2402 code is an OBD-II trouble code that indicates an issue with the Evaporative Emission System Leak Detection Pump Control Circuit. This code is triggered when the vehicle’s onboard computer detects that the leak detection pump is not functioning as it should.
What Does the P2402 Code Mean?
OBD-II Code P2402 is defined as a Evaporative Emission System Leak Detection Pump Control Circuit. The Leak Detection Pump is an essential component of the Evaporative Emissions System, responsible for detecting leaks in the fuel system.
What Causes the P2402 Code?
Several factors can lead to the activation of the P2402 code, including:
- Evap leak detection pump failure
- Powertrain Control Module (PCM) failure
- Wiring issues, such as damaged or corroded wiring connections
What Are the Symptoms of the P2402 Code?
Drivers may experience various symptoms when the P2402 code is present, including:
- Check Engine Light illuminated
- Failed emissions test
- Poor fuel economy
- Unusual engine performance
How Serious Is the P2402 Code?
While the P2402 code is classified as moderate severity, it does not pose an immediate threat to the vehicle’s safety or functionality. However, it is advisable to have it diagnosed and repaired in a timely manner to prevent further issues and maintain optimal vehicle performance.
How to Diagnose the P2402 Code
Diagnosing the P2402 code typically involves:
- Using an OBD-II scanner to confirm the presence of the code.
- Inspecting the wiring and connections related to the leak detection pump.
- Testing the functionality of the leak detection pump.
- Checking the Powertrain Control Module (PCM) for faults.
Common Repairs for the P2402 Code
Common repairs to resolve the P2402 code may include:
- Replacing the evap leak detection pump if it is found to be faulty.
- Repairing or replacing damaged wiring or connectors.
- Reprogramming or replacing the Powertrain Control Module (PCM) if necessary.
How Much Does It Cost to Fix the P2402 Code?
The cost to fix the P2402 code can vary widely depending on the make and model of the vehicle, as well as the specific repairs needed. On average, repairs may range from $100 to $500, including parts and labor.
Can I Fix the P2402 Code Myself?
While some DIY enthusiasts may be able to address wiring issues or replace the evap leak detection pump, it is crucial to have the proper tools and knowledge to diagnose and repair the P2402 code accurately. If you are unsure, it is recommended to seek professional assistance from a certified mechanic.
