P2660 – BMW DTC

BMW DTC P2660 – ‘B’ Rocker Arm Actuator Control Circuit/Open (Bank 2)

DTC P2660 meaning on BMW

The Diagnostic Trouble Code (DTC) P2660 for BMW refers to the ‘B’ 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 ‘B’ rocker arm actuator on the second bank of the engine.

BMW DTC P2660 symptoms

Symptoms of DTC P2660 on a BMW may include:

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

BMW DTC P2660 causes

The common causes of DTC P2660 on a BMW include:

• Faulty rocker arm actuator
• Open or short circuit in the wiring harness
• Faulty engine control module (ECM)
• Poor electrical connection

BMW DTC P2660 seriousness

DTC P2660 should not be ignored as it can lead to engine performance issues and potential damage if left unresolved. It is recommended to address this code promptly to prevent further complications.

How to diagnose DTC P2660 on BMW

To diagnose DTC P2660 on a BMW, you can follow these steps:

1. Use a diagnostic scanner to retrieve the fault codes and freeze frame data
2. Inspect the wiring harness for any visible damage or loose connections
3. Test the rocker arm actuator for proper operation
4. Check the ECM for any faults or errors

How to fix DTC P2660 on BMW

To fix DTC P2660 on a BMW, you can try the following solutions:

1. Replace the faulty rocker arm actuator
2. Repair any open or short circuits in the wiring harness
3. Ensure all electrical connections are secure and free of corrosion
4. If necessary, replace the engine control module (ECM)

How to erase DTC P2660 on BMW

To erase DTC P2660 on a BMW, you can use a diagnostic scanner to clear the fault codes stored in the ECM memory. Once the codes are cleared, you can drive the vehicle and monitor for any recurrence of the code.

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

Some of the links on this page may be affiliate links, which means we may earn a small commission if you make a purchase. This helps us keep our DTC database up to date and provide valuable content for free. We only recommend products that we have tested and believe to be the best in their class.