P0660 – BMW DTC

BMW DTC P0660 – Intake Manifold Tuning Valve Control Circuit/Open (Bank 1)

DTC P0660 meaning on BMW

The Diagnostic Trouble Code (DTC) P0660 for BMW refers to the Intake Manifold Tuning Valve Control Circuit/Open on Bank 1. This code indicates that there is an issue with the control circuit for the intake manifold tuning valve on the specified bank of the engine.

BMW DTC P0660 symptoms

Symptoms of DTC P0660 on a BMW may include:

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

BMW DTC P0660 causes

Common causes of DTC P0660 on a BMW include:

• Faulty intake manifold tuning valve
• Open or short circuit in the wiring related to the intake manifold tuning valve
• Faulty engine control module (ECM)

BMW DTC P0660 seriousness

While DTC P0660 may not always result in immediate drivability issues, it is important to address this code promptly to prevent potential engine performance issues and further damage. Ignoring this code could lead to decreased fuel efficiency and potential engine misfires.

How to diagnose DTC P0660 on BMW

To diagnose DTC P0660 on a BMW, you can perform the following steps:

1. Use an OBD-II scanner to retrieve the specific fault code and verify the presence of DTC P0660.
2. Inspect the wiring harness and connectors related to the intake manifold tuning valve for any visible damage or corrosion.
3. Test the intake manifold tuning valve for proper operation and continuity.
4. Check the ECM for any stored codes or malfunctions related to the intake manifold tuning valve control circuit.

How to fix DTC P0660 on BMW

To fix DTC P0660 on a BMW, you can consider the following actions:

1. Replace the faulty intake manifold tuning valve if it is determined to be the root cause of the issue.
2. Repair or replace any damaged wiring or connectors in the intake manifold tuning valve control circuit.
3. If the ECM is faulty, consider reprogramming or replacing it as necessary.

How to erase DTC P0660 on BMW

To erase DTC P0660 on a BMW, you can follow these steps:

1. Use an OBD-II scanner to clear the fault code from the ECM memory.
2. After clearing the code, perform a test drive to ensure that the Check Engine Light does not reappear.
3. If the code persists, further diagnosis and repairs may be required to address the underlying issue.

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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