P2147 – BMW DTC

BMW DTC P2147 – Fuel Injector Group ‘A’ Supply Voltage Circuit Low

DTC P2147 meaning on BMW

The Diagnostic Trouble Code (DTC) P2147 for BMW indicates a fault in the Fuel Injector Group ‘A’ Supply Voltage Circuit, specifically a low voltage condition. This fault code is typically triggered when the Engine Control Module (ECM) detects that the voltage supplied to the fuel injector group ‘A’ is below the specified threshold.

BMW DTC P2147 symptoms

Symptoms associated with DTC P2147 on a BMW may include:

• Engine misfires or rough idling
• Reduced engine performance
• Check Engine Light (CEL) illuminated on the dashboard
• Potential fuel efficiency issues

BMW DTC P2147 causes

The common causes of DTC P2147 on a BMW include:

• Wiring or connector issues in the fuel injector circuit
• Defective fuel injector in group ‘A’
• Faulty Engine Control Module (ECM)
• Low voltage supply to the fuel injector group ‘A’

BMW DTC P2147 seriousness

While DTC P2147 may not always result in immediate drivability issues, it is important to address this fault promptly to prevent potential engine performance problems and further damage. Ignoring this fault could lead to more severe issues over time.

How to diagnose DTC P2147 on BMW

To diagnose DTC P2147 on a BMW, you can follow these steps:

1. Use a diagnostic scanner to retrieve the fault code and freeze frame data
2. Inspect the wiring and connectors in the fuel injector group ‘A’ circuit for any damage or corrosion
3. Test the voltage supply to the fuel injector group ‘A’ using a multimeter
4. Check the resistance of the fuel injector in group ‘A’ to ensure it is within specifications
5. If necessary, perform a continuity test on the wiring harness

How to fix DTC P2147 on BMW

To fix DTC P2147 on a BMW, you can consider the following actions:

1. Repair or replace any damaged wiring or connectors in the fuel injector circuit
2. Replace the faulty fuel injector in group ‘A’ if necessary
3. If the ECM is determined to be faulty, it may need to be reprogrammed or replaced
4. Ensure the voltage supply to the fuel injector group ‘A’ is within the specified range

How to erase DTC P2147 on BMW

To erase DTC P2147 on a BMW, you can use a diagnostic scanner to clear the fault code from the ECM’s memory. After addressing the underlying issue that triggered the fault code, you can reset the ECM and verify that the code has been successfully cleared.