BMW DTC P0384 – Glow Plug Control Module 1 Control Circuit High
DTC P0384 meaning on BMW
The Diagnostic Trouble Code (DTC) P0384 for BMW refers to a fault in the Glow Plug Control Module 1 Control Circuit High. This code indicates that there is an electrical issue with the control circuit for the glow plug module, specifically that the voltage in the circuit is higher than normal.
BMW DTC P0384 symptoms
Symptoms of DTC P0384 on a BMW may include:
- Check Engine Light illuminated on the dashboard
- Engine misfires or rough idling
- Difficulty starting the engine, especially in cold weather
- Reduced engine performance
BMW DTC P0384 causes
The common causes of DTC P0384 on a BMW include:
- Faulty glow plug control module
- Wiring issues in the control circuit
- Corrosion or poor connections in the circuit
- Defective glow plugs
BMW DTC P0384 seriousness
DTC P0384 should not be ignored as it can lead to starting problems and reduced engine performance. If left unresolved, it may cause further damage to the engine components and affect the overall drivability of the vehicle.
How to diagnose DTC P0384 on BMW
To diagnose DTC P0384 on a BMW, you can follow these steps:
- Use a diagnostic scanner to retrieve the fault codes from the vehicle’s computer
- Inspect the glow plug control module and wiring for any visible damage or corrosion
- Test the glow plugs for proper functionality
- Check the voltage in the control circuit to determine if it is within the specified range
How to fix DTC P0384 on BMW
To fix DTC P0384 on a BMW, you may need to:
- Replace the faulty glow plug control module
- Repair or replace any damaged wiring in the control circuit
- Clean or repair any corroded connections in the circuit
- Replace any defective glow plugs
How to erase DTC P0384 on BMW
To erase DTC P0384 on a BMW, you can:
- Use a diagnostic scanner to clear the fault codes from the vehicle’s computer
- After fixing the underlying issue, drive the vehicle to allow the system to retest and verify 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
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