P2590 – BMW DTC

BMW DTC P2590 – Turbocharger Boost Control Position Sensor ‘B’ Circuit Intermittent/Erratic

DTC P2590 meaning on BMW

DTC P2590 on a BMW indicates an issue with the Turbocharger Boost Control Position Sensor ‘B’ circuit. This fault code is triggered when the engine control module (ECM) detects intermittent or erratic signals from the sensor, which is responsible for monitoring the position of the turbocharger boost control.

BMW DTC P2590 symptoms

Symptoms of DTC P2590 on a BMW may include:

• Check Engine Light (CEL) illuminated on the dashboard
• Reduced engine power
• Potential turbocharger performance issues
• Decreased fuel efficiency

BMW DTC P2590 causes

Common causes of DTC P2590 on a BMW include:

• Faulty Turbocharger Boost Control Position Sensor ‘B’
• Wiring or connector issues in the sensor circuit
• Intermittent electrical connection problems
• ECM software or hardware issues

BMW DTC P2590 seriousness

DTC P2590 should not be ignored as it can lead to potential engine performance issues and reduced fuel efficiency. It is recommended to address this fault code promptly to prevent further damage to the turbocharger system.

How to diagnose DTC P2590 on BMW

To diagnose DTC P2590 on a BMW, follow these steps:

1. Use a diagnostic scanner to retrieve the fault code and freeze frame data
2. Inspect the Turbocharger Boost Control Position Sensor ‘B’ and its wiring for any visible damage
3. Perform a thorough visual inspection of the sensor circuit components
4. Test the sensor’s resistance and voltage output using a multimeter
5. Check for any loose or corroded connections in the sensor circuit

How to fix DTC P2590 on BMW

To fix DTC P2590 on a BMW, consider the following steps:

1. Replace the Turbocharger Boost Control Position Sensor ‘B’ if it is found to be faulty
2. Repair or replace any damaged wiring or connectors in the sensor circuit
3. Clear the fault code and perform a test drive to verify the repair
4. If the issue persists, further diagnosis may be required to identify the root cause

How to erase DTC P2590 on BMW

To erase DTC P2590 on a BMW, follow these steps:

1. Use a diagnostic scanner to access the ECM and clear the fault code
2. Ensure that the underlying issue causing the fault code has been addressed
3. Perform a test drive to confirm that the fault code does not reappear

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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