P2402 BMW Code - Evaporative Emission System Leak Detection Pump Control Circuit High
Quick Answer
5 hours after the ignition switch is turned OFF, the electric vacuum pump creates negative pressure (vacuum) in the EVAP (Evaporative Emission) system. Common causes include Faulty Vacuum Pump Module, Vacuum Pump Module harness is open or shorted, Vacuum Pump Module circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P2402 BMW indicates Evaporative Emission System Leak Detection Pump Control Circuit High.
- Common causes
- Common causes include Faulty Vacuum Pump Module, Vacuum Pump Module harness is open or shorted, Vacuum Pump Module circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P2402 BMW Description
What are the Possible Causes of the DTC P2402 BMW?
- Faulty Vacuum Pump Module
- Vacuum Pump Module harness is open or shorted
- Vacuum Pump Module circuit poor electrical connection.
- Faulty Engine Control Module (ECM)
How to Fix the DTC P2402 BMW?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P2402 BMW code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P2402 BMW Code
1. What are common symptoms of OBDII code P2402 in a BMW?
- Common symptoms include the illumination of the check engine light, a noticeable fuel odor near the vehicle, and potential issues with passing emissions tests.
2. What causes the OBDII code P2402 in a BMW?
- The code P2402 typically indicates a problem with the Evaporative Emission System Leak Detection Pump Control Circuit being too high, often caused by a faulty leak detection pump, damaged wiring, or a loose gas cap.
3. How serious is the OBDII code P2402 in a BMW?
- While the code itself may not affect the immediate drivability of the vehicle, it is important to address it promptly to ensure proper emission control and to prevent potential long-term damage to the vehicle's systems.
4. Can I continue driving my BMW with the OBDII code P2402?
- It is generally safe to drive the vehicle with the code P2402, but it is recommended to have it diagnosed and repaired as soon as possible to prevent any further issues.
5. How can I diagnose the OBDII code P2402 in my BMW?
- Diagnosing the code typically involves using an OBDII scanner to retrieve the specific fault code, conducting a visual inspection for any obvious issues, and performing further testing on the Evaporative Emission System components.
6. Is it possible to repair the OBDII code P2402 in a BMW myself?
- While some DIY enthusiasts may attempt to address the issue themselves by checking for loose connections or replacing the gas cap, it is often recommended to have a professional technician diagnose and repair the problem to ensure proper resolution.
7. How much does it cost to repair the OBDII code P2402 in a BMW?
- The cost of repairing the code P2402 can vary depending on the root cause of the issue, but it may involve replacing the leak detection pump, repairing damaged wiring, or addressing other related components. Costs can range from a few hundred to over a thousand dollars.
8. Can a faulty gas cap trigger the OBDII code P2402 in a BMW?
- Yes, a loose or faulty gas cap can cause the code P2402 to appear as it can lead to a leak in the evaporative emission system. It is recommended to check and properly seal the gas cap before pursuing further diagnostics.
9. How long does it typically take to repair the OBDII code P2402 in a BMW?
- The repair time for the code P2402 can vary depending on the extent of the issue and the availability of parts. In general, it may take a few hours to a day to diagnose and fix the problem, but this can vary based on the specific circumstances.
10. Are there any preventive measures to avoid the OBDII code P2402 in a BMW?
- Regularly inspecting the gas cap to ensure it is properly sealed, performing routine maintenance on the evaporative emission system, and addressing any check engine light warnings promptly can help prevent the recurrence of the code P2402 in a BMW.
Discuss the causes and fixes for P2402 BMW OBDII Code
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I wanted to help out with my experience with this code. 2014 Mini Cooper "S". Unfortunately, I needed to get the car ready for state inspection and needed the "check engine" light to be gone, so I took the advice of several forums and replaced both the gas cap and the Leak Detection Pump. I got the pump for about $60 on PartGeeks. Anyway, the light did not clear after the replacements and I couldn't clear it with my OBD resetter. What did clear it was about 150 miles of driving. We went for a couple of drives this weekend and the light went off finally. Sorry that I did both and was unable to definitively figure out whether it was the pump or the gas cap, but I'm extremely happy that it cleared and I can get the inspection with no problems!!
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