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P2655 – BMW DTC

BMW DTC P2655 – ‘A’ Rocker Arm Actuator Control Circuit/Open (Bank 2)

DTC P2655 meaning on BMW

The Diagnostic Trouble Code (DTC) P2655 for BMW refers to the ‘A’ Rocker Arm Actuator Control Circuit/Open on Bank 2. This code indicates that there is an open circuit detected in the control circuit of the ‘A’ rocker arm actuator on the second bank of the engine.

BMW DTC P2655 symptoms

Symptoms of DTC P2655 on a BMW may include:

  • Check Engine Light (CEL) illuminated on the dashboard
  • Reduced engine performance
  • Engine misfires
  • Rough idling

BMW DTC P2655 causes

Common causes of DTC P2655 on a BMW include:

  • Faulty ‘A’ rocker arm actuator
  • Open or short circuit in the wiring harness
  • Faulty engine control module (ECM)

BMW DTC P2655 seriousness

While DTC P2655 may not cause immediate drivability issues, it is important to address this code promptly to prevent potential engine damage and ensure optimal performance.

How to diagnose DTC P2655 on BMW

To diagnose DTC P2655 on a BMW, you can follow these steps:

  1. Use a diagnostic scanner to retrieve the fault codes
  2. Inspect the wiring harness for any visible damage or loose connections
  3. Test the ‘A’ rocker arm actuator for proper operation
  4. Check the ECM for any faults or malfunctions

How to fix DTC P2655 on BMW

To fix DTC P2655 on a BMW, you may need to:

  1. Replace the faulty ‘A’ rocker arm actuator
  2. Repair or replace any damaged wiring in the circuit
  3. If the ECM is faulty, it may need to be reprogrammed or replaced

How to erase DTC P2655 on BMW

To erase DTC P2655 on a BMW, you can:

  1. Use a diagnostic scanner to clear the fault codes
  2. After fixing the underlying issue, clear the codes again to ensure they do not return

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

← All BMW Diagnostic Trouble Codes

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