P2143 – BMW DTC

BMW DTC P2143 – EGR Vent Control Circuit/Open

DTC P2143 meaning on BMW

DTC P2143 on a BMW indicates a fault with the EGR (Exhaust Gas Recirculation) Vent Control Circuit. This fault code is triggered when the Engine Control Module (ECM) detects an open circuit or a lack of signal from the EGR Vent Control Circuit.

BMW DTC P2143 symptoms

Symptoms of DTC P2143 on a BMW may include:

• Check Engine Light illuminated
• Reduced engine performance
• Increased fuel consumption
• Rough idling or stalling

BMW DTC P2143 causes

Common causes of DTC P2143 on a BMW include:

• Faulty EGR Vent Control Solenoid
• Open or short circuit in the wiring harness
• Corrosion or poor connection at the EGR Vent Control Circuit

BMW DTC P2143 seriousness

While DTC P2143 may not cause immediate drivability issues, it can lead to reduced engine efficiency and increased emissions if left unresolved. It is recommended to address this fault code promptly to prevent further damage to the vehicle.

How to diagnose DTC P2143 on BMW

To diagnose DTC P2143 on a BMW, follow these steps:

1. Use a diagnostic scanner to retrieve the fault code and freeze frame data.
2. Inspect the EGR Vent Control Solenoid for proper operation.
3. Check the wiring harness for any signs of damage or corrosion.
4. Test the EGR Vent Control Circuit for continuity and proper voltage.

How to fix DTC P2143 on BMW

To fix DTC P2143 on a BMW, consider the following:

1. Replace the faulty EGR Vent Control Solenoid if necessary.
2. Repair any open or short circuits in the wiring harness.
3. Clean or repair any corroded connections at the EGR Vent Control Circuit.
4. Clear the fault code and test drive the vehicle to ensure the issue is resolved.

How to erase DTC P2143 on BMW

To erase DTC P2143 on a BMW, use a diagnostic scanner to clear the fault code from the ECM’s memory. After clearing the code, perform a test drive to verify that the issue has been resolved. If the fault code returns, further diagnosis and repairs may be necessary.

Recommended tools & DTC Scanners for BMW

Best Diagnostic App for modern BMWs: BimmerLink

Recommended Bluetooth adapter for Bimmerlink: OBDLink CX

Cable adapter for Bimmerlink: Enet Cable USB Type C

For older BMWs we recommend: Autel AutoLink AL319 (2024 version)

Easy-to-use Multimeter for reliable diagnostics: AstroAI Auto-ranging Multimeter

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