P0663 – BMW DTC

BMW DTC P0663 – Intake Manifold Tuning Valve Control Circuit/Open (Bank 2)

DTC P0663 meaning on BMW

The Diagnostic Trouble Code (DTC) P0663 for BMW refers to the Intake Manifold Tuning Valve Control Circuit/Open on Bank 2. This code indicates that there is an open circuit detected in the control circuit of the intake manifold tuning valve for the specified bank.

BMW DTC P0663 symptoms

Symptoms of DTC P0663 on a BMW may include:

• Check Engine Light illuminated on the dashboard
• Reduced engine performance
• Engine stalling or rough idling
• Decreased fuel efficiency

BMW DTC P0663 causes

Common causes of DTC P0663 on a BMW include:

• Faulty intake manifold tuning valve
• Open or short circuit in the wiring harness connected to the valve
• Corrosion or poor connections in the electrical connectors
• Issues with the Engine Control Module (ECM)

BMW DTC P0663 seriousness

While DTC P0663 may not always result in immediate drivability issues, it is important to address this code promptly to prevent potential engine performance problems and further damage. Ignoring this code could lead to decreased fuel efficiency and potential engine misfires.

How to diagnose DTC P0663 on BMW

To diagnose DTC P0663 on a BMW, a mechanic may perform the following steps:

1. Use a diagnostic scanner to retrieve the fault code and related data
2. Inspect the intake manifold tuning valve and associated wiring for any visible damage
3. Test the continuity of the circuit using a multimeter
4. Check the electrical connectors for corrosion or poor connections
5. Perform a thorough inspection of the ECM for any signs of malfunction

How to fix DTC P0663 on BMW

To fix DTC P0663 on a BMW, the following steps may be taken:

1. Replace the faulty intake manifold tuning valve
2. Repair any open or short circuits in the wiring harness
3. Clean or replace any corroded electrical connectors
4. If necessary, replace the Engine Control Module (ECM)

How to erase DTC P0663 on BMW

To erase DTC P0663 on a BMW, follow these steps:

1. Use a diagnostic scanner to clear the fault code from the ECM memory
2. After clearing the code, perform a test drive to ensure the code does not return
3. If the code reappears, further diagnosis and repairs may be necessary

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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