P059A – BMW DTC

BMW DTC P059A – Active Grill Air Shutter ‘A’ Position Sensor Circuit

DTC P059A meaning on BMW

The DTC P059A fault code on a BMW indicates an issue with the Active Grill Air Shutter ‘A’ Position Sensor Circuit. This code is triggered when the engine control module (ECM) detects a discrepancy in the signal from the sensor that monitors the position of the active grill air shutter.

BMW DTC P059A symptoms

Symptoms of a DTC P059A fault on a BMW may include:

• Check Engine Light (CEL) illuminated on the dashboard
• Reduced fuel efficiency
• Engine running rough or stalling
• Issues with the vehicle’s cooling system

BMW DTC P059A causes

Common causes of a DTC P059A fault on a BMW include:

• Faulty Active Grill Air Shutter ‘A’ Position Sensor
• Wiring or connector issues in the sensor circuit
• Software glitches in the ECM

BMW DTC P059A seriousness

While a DTC P059A fault may not cause immediate drivability issues, it can lead to reduced engine performance and fuel efficiency. Ignoring this fault code may result in further damage to the vehicle’s components over time.

How to diagnose DTC P059A on BMW

To diagnose a DTC P059A fault on a BMW, follow these steps:

1. Use an OBD-II scanner to retrieve the fault code and freeze frame data
2. Inspect the wiring and connectors in the Active Grill Air Shutter ‘A’ Position Sensor circuit for any damage or corrosion
3. Test the sensor’s resistance and voltage output to determine if it is functioning correctly
4. Check for any software updates for the ECM that may address the issue

How to fix DTC P059A on BMW

To fix a DTC P059A fault on a BMW, consider the following steps:

1. Replace the faulty Active Grill Air Shutter ‘A’ Position Sensor
2. Repair or replace any damaged wiring or connectors in the sensor circuit
3. Clear the fault code using an OBD-II scanner after completing the repairs

How to erase DTC P059A on BMW

To erase the DTC P059A fault code on a BMW, follow these steps:

1. Connect an OBD-II scanner to the vehicle’s diagnostic port
2. Select the option to clear the fault codes from the ECM
3. Follow the on-screen prompts to complete the clearing process
4. Verify that the fault code has been successfully erased by rescanning the vehicle

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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