P0003 – BMW DTC

BMW DTC P0003 – Fuel Volume Regulator ‘A’ Control Circuit Low

DTC P0003 meaning on BMW

DTC P0003 on a BMW indicates an issue with the Fuel Volume Regulator ‘A’ Control Circuit. This fault code is triggered when the Engine Control Module (ECM) detects that the signal voltage from the fuel volume regulator control circuit is lower than the specified range.

BMW DTC P0003 symptoms

Symptoms of DTC P0003 on a BMW may include:

• Check Engine Light illuminated
• Engine running rough or misfiring
• Decreased fuel efficiency
• Engine stalling

BMW DTC P0003 causes

Common causes of DTC P0003 on a BMW include:

• Faulty fuel volume regulator
• Wiring or connector issues in the fuel volume regulator circuit
• ECM software or hardware problems

BMW DTC P0003 seriousness

DTC P0003 should not be ignored as it can lead to poor engine performance and potential drivability issues. It is recommended to address this fault code promptly to prevent further damage to the vehicle.

How to diagnose DTC P0003 on BMW

To diagnose DTC P0003 on a BMW, a mechanic may perform the following steps:

1. Use a diagnostic scanner to retrieve the fault code and freeze frame data
2. Inspect the fuel volume regulator and its wiring for any visible damage
3. Test the fuel volume regulator control circuit for proper voltage and continuity
4. Check for any ECM software updates or reprogramming that may be required

How to fix DTC P0003 on BMW

To fix DTC P0003 on a BMW, the following steps may be taken:

1. Replace the faulty fuel volume regulator if necessary
2. Repair any damaged wiring or connectors in the fuel volume regulator circuit
3. Clear the fault code and perform a test drive to ensure the issue has been resolved

How to erase DTC P0003 on BMW

To erase DTC P0003 on a BMW, follow these steps:

1. Use a diagnostic scanner to clear the fault code from the ECM memory
2. Perform a test drive to confirm that the fault code does not return

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.