BMW DTC P1044 – Internal VVL-Control Module EEPROM Error (Bank 2)
DTC P1044 meaning on BMW
The Diagnostic Trouble Code (DTC) P1044 for BMW indicates an Internal Variable Valve Lift (VVL) Control Module EEPROM Error on Bank 2. This error specifically relates to a fault in the electronic control module responsible for managing the variable valve lift system on the second bank of cylinders in the engine.
BMW DTC P1044 symptoms
Symptoms of the DTC P1044 on a BMW may include engine misfires, rough idling, reduced power output, and potentially an illuminated Check Engine Light on the dashboard. The vehicle may also experience decreased fuel efficiency and overall performance issues.
BMW DTC P1044 causes
The DTC P1044 on a BMW is commonly caused by a malfunction or corruption in the internal EEPROM (Electrically Erasable Programmable Read-Only Memory) of the Variable Valve Lift Control Module on Bank 2. This can be due to electrical faults, wiring issues, or internal component failures within the control module.
BMW DTC P1044 seriousness
The seriousness of the DTC P1044 error on a BMW lies in its potential to affect the engine’s performance and efficiency. Ignoring this fault can lead to further damage to engine components and may result in costly repairs if left unresolved for an extended period.
How to diagnose DTC P1044 on BMW
To diagnose the DTC P1044 on a BMW, a professional automotive technician would typically use a diagnostic scanner to retrieve the fault codes stored in the vehicle’s Engine Control Module (ECM). They would then perform a thorough inspection of the Variable Valve Lift Control Module on Bank 2, checking for any visible signs of damage or wiring issues.
How to fix DTC P1044 on BMW
Fixing the DTC P1044 on a BMW usually involves repairing or replacing the faulty Variable Valve Lift Control Module on Bank 2. This may require reprogramming the module or addressing any underlying electrical issues that contributed to the error code. It is recommended to consult with a qualified mechanic or dealership for proper diagnosis and repair.
How to erase DTC P1044 on BMW
To erase the DTC P1044 on a BMW, the underlying issue causing the fault code must first be resolved. Once the necessary repairs have been made, a diagnostic scanner can be used to clear the error code from the vehicle’s ECM memory. This will reset the Check Engine Light and allow the system to monitor for any new 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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