BMW DTC P037F – Glow Plug Sense Circuit High
DTC P037F meaning on BMW
DTC P037F in a BMW indicates a Glow Plug Sense Circuit High fault. This fault code is triggered when the engine control module (ECM) detects a high voltage signal from the glow plug sense circuit, which is responsible for monitoring the operation of the glow plugs in the diesel engine.
BMW DTC P037F symptoms
Symptoms of a DTC P037F in a BMW may include:
- Check Engine Light (CEL) illuminated on the dashboard
- Engine running rough or misfiring
- Difficulty starting the engine, especially in cold weather
- Reduced engine performance
BMW DTC P037F causes
The common causes of a DTC P037F in a BMW include:
- Faulty glow plug(s)
- Wiring or connection issues in the glow plug circuit
- Defective glow plug control module
- ECM software issues
BMW DTC P037F seriousness
While a DTC P037F may not cause immediate drivability issues, it is important to address this fault promptly to ensure proper engine performance, especially in cold weather conditions. Ignoring this fault can lead to starting problems and potential engine damage over time.
How to diagnose DTC P037F on BMW
To diagnose a DTC P037F on a BMW, a mechanic would typically perform the following steps:
- Use a diagnostic scanner to retrieve the fault code and freeze frame data
- Inspect the glow plugs and their wiring for any visible damage or corrosion
- Test the glow plugs for proper resistance and functionality
- Check the glow plug control module for any faults
- Inspect the ECM for any software-related issues
How to fix DTC P037F on BMW
To fix a DTC P037F on a BMW, the following steps may be taken:
- Replace any faulty glow plugs
- Repair or replace any damaged wiring or connections in the glow plug circuit
- Replace the glow plug control module if necessary
- Update the ECM software to the latest version
How to erase DTC P037F on BMW
After fixing the underlying issue causing the DTC P037F, the fault code can be erased using a diagnostic scanner. This will clear the code from the ECM’s memory and turn off the Check Engine Light. It is important to ensure that the repair has been successful before clearing the fault 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
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.