P201D – BMW DTC

BMW DTC P201D – Intake Manifold Runner Control Actuator Internal Performance (Bank 1)

DTC P201D meaning on BMW

DTC P201D on a BMW indicates an issue with the Intake Manifold Runner Control (IMRC) actuator internal performance on Bank 1. The Engine Control Module (ECM) monitors the performance of the IMRC actuator and triggers this diagnostic trouble code when it detects that the actuator is not functioning within the expected parameters.

BMW DTC P201D symptoms

Symptoms of DTC P201D on a BMW may include:

• Check Engine Light (CEL) illuminated on the dashboard
• Reduced engine performance or power
• Engine running rough or misfiring
• Decreased fuel efficiency

BMW DTC P201D causes

The common causes of DTC P201D on a BMW include:

• Failed Intake Manifold Runner Control (IMRC) actuator
• Wiring or connector issues related to the IMRC actuator
• Carbon buildup in the intake manifold

BMW DTC P201D seriousness

While DTC P201D may not cause immediate drivability issues, it can lead to reduced engine performance and fuel efficiency if left unresolved. Ignoring this code may also result in potential long-term damage to the engine components.

How to diagnose DTC P201D on BMW

To diagnose DTC P201D on a BMW, a mechanic would typically perform the following steps:

1. Use a diagnostic scanner to retrieve the fault codes stored in the ECM
2. Inspect the IMRC actuator and related wiring for any visible damage or corrosion
3. Perform a functionality test on the IMRC actuator using a scan tool
4. Check for any carbon buildup in the intake manifold

How to fix DTC P201D on BMW

To fix DTC P201D on a BMW, the following steps may be taken:

1. Replace the faulty Intake Manifold Runner Control (IMRC) actuator
2. Repair or replace any damaged wiring or connectors related to the IMRC actuator
3. Clean out any carbon buildup in the intake manifold
4. Clear the fault codes using a diagnostic scanner

How to erase DTC P201D on BMW

To erase DTC P201D on a BMW, follow these steps:

1. Connect a diagnostic scanner to the vehicle’s OBD-II port
2. Access the ECM and navigate to the fault code section
3. Select the option to clear the fault codes
4. Confirm the action and wait for the scanner to erase the DTC P201D 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

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