P2426 – BMW DTC

BMW DTC P2426 – EGR Cooling Valve Control Circuit Low

DTC P2426 meaning on BMW

DTC P2426 on a BMW indicates a fault with the EGR (Exhaust Gas Recirculation) cooling valve control circuit. The Engine Control Module (ECM) monitors the voltage signal from the EGR cooling valve to ensure proper operation. A low voltage reading triggers this diagnostic trouble code.

BMW DTC P2426 symptoms

Symptoms of DTC P2426 on a BMW may include:

• Check Engine Light (MIL) illuminated
• Reduced engine performance
• Increased fuel consumption
• Engine stalling or rough idling

BMW DTC P2426 causes

Common causes of DTC P2426 on a BMW include:

• Defective EGR cooling valve
• Wiring or connector issues in the EGR cooling valve circuit
• ECM software or hardware problems

BMW DTC P2426 seriousness

While DTC P2426 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 promptly to prevent further complications.

How to diagnose DTC P2426 on BMW

To diagnose DTC P2426 on a BMW, follow these steps:

1. Use a diagnostic scanner to retrieve the fault codes stored in the ECM.
2. Inspect the EGR cooling valve and its wiring for any visible damage or corrosion.
3. Test the EGR cooling valve for proper operation using a multimeter.
4. Check the ECM for any software updates or malfunctions.

How to fix DTC P2426 on BMW

To fix DTC P2426 on a BMW, consider the following:

1. Replace the faulty EGR cooling valve if it is found to be defective.
2. Repair any damaged wiring or connectors in the EGR cooling valve circuit.
3. Update the ECM software to the latest version, if applicable.

How to erase DTC P2426 on BMW

To erase DTC P2426 on a BMW:

1. Use a diagnostic scanner to clear the fault codes stored in the ECM.
2. After making the necessary repairs, drive the vehicle to allow the ECM to perform a self-check and verify the issue has been resolved.

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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