BMW DTC P3145 – Cylinder 12 High Pressure Injector Low Side Circuit Low
DTC P3145 meaning on BMW
The Diagnostic Trouble Code (DTC) P3145 for BMW indicates an issue with the Cylinder 12 High Pressure Injector Low Side Circuit Low. This means that there is a problem with the electrical circuit that controls the high-pressure fuel injector for cylinder 12 in the engine.
BMW DTC P3145 symptoms
Symptoms of DTC P3145 on a BMW may include:
- Engine misfires
- Loss of power
- Rough idling
- Decreased fuel efficiency
- Check Engine Light (CEL) illuminated on the dashboard
BMW DTC P3145 causes
Common causes of DTC P3145 on a BMW include:
- Faulty high-pressure fuel injector
- Wiring or connector issues in the injector circuit
- ECU (Engine Control Unit) malfunction
- Fuel system problems
BMW DTC P3145 seriousness
Ignoring DTC P3145 on a BMW can lead to potential engine performance issues and further damage. It is important to address this code promptly to prevent more severe problems and ensure the vehicle operates efficiently.
How to diagnose DTC P3145 on BMW
To diagnose DTC P3145 on a BMW, you can perform the following steps:
- Use a diagnostic scanner to retrieve the fault codes and identify P3145.
- Inspect the wiring and connectors related to the high-pressure injector for cylinder 12.
- Test the high-pressure fuel injector for proper operation.
- Check the fuel system for any issues that may affect injector performance.
How to fix DTC P3145 on BMW
To fix DTC P3145 on a BMW, you can try the following solutions:
- Replace the faulty high-pressure fuel injector for cylinder 12.
- Repair or replace any damaged wiring or connectors in the injector circuit.
- If the ECU is faulty, consider reprogramming or replacing it.
- Ensure the fuel system is clean and functioning properly.
How to erase DTC P3145 on BMW
To erase DTC P3145 on a BMW, you can use a diagnostic scanner to clear the fault codes stored in the ECU. After addressing the underlying issue causing the code, clearing the code will reset the Check Engine Light and ensure the system is free of any active faults.
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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