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P2659 – BMW DTC

BMW DTC P2659 – ‘A’ Rocker Arm Actuator Control Circuit High (Bank 2)

DTC P2659 meaning on BMW

DTC P2659 on a BMW indicates a fault with the ‘A’ Rocker Arm Actuator Control Circuit on Bank 2. This fault code is triggered when the Engine Control Module (ECM) detects a high voltage condition in the circuit controlling the ‘A’ rocker arm actuator on the second bank of the engine.

BMW DTC P2659 symptoms

Symptoms of DTC P2659 on a BMW may include:

  • Check Engine Light illuminated on the dashboard
  • Engine running rough or misfiring
  • Reduced engine performance
  • Increased fuel consumption

BMW DTC P2659 causes

The common causes of DTC P2659 on a BMW include:

  • Faulty ‘A’ rocker arm actuator
  • Wiring or connector issues in the actuator control circuit
  • ECM software or hardware problems

BMW DTC P2659 seriousness

While DTC P2659 may not cause immediate drivability issues, it is important to address this fault code promptly to prevent potential engine damage and ensure optimal performance.

How to diagnose DTC P2659 on BMW

To diagnose DTC P2659 on a BMW, follow these steps:

  1. Use a diagnostic scanner to retrieve the fault code and freeze frame data
  2. Inspect the wiring and connectors in the ‘A’ rocker arm actuator control circuit
  3. Test the ‘A’ rocker arm actuator for proper operation
  4. Check for any ECM software updates or reprogramming

How to fix DTC P2659 on BMW

To fix DTC P2659 on a BMW, consider the following:

  1. Replace the faulty ‘A’ rocker arm actuator
  2. Repair any damaged wiring or connectors in the control circuit
  3. Update or reprogram the ECM if necessary

How to erase DTC P2659 on BMW

To erase DTC P2659 on a BMW, use a diagnostic scanner to clear the fault code after the underlying issue has been resolved. This will reset the Check Engine Light and ensure 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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