BMW DTC P1669 – EWS (Electronic Immobilizer) Start Value Programming Incorrect
DTC P1669 meaning on BMW
DTC P1669 on a BMW refers to an issue with the Electronic Immobilizer Start Value Programming being incorrect. The Electronic Immobilizer is a security feature that prevents the vehicle from starting without the correct key. When the start value programming is incorrect, the immobilizer may not recognize the key, leading to starting issues.
BMW DTC P1669 symptoms
Symptoms of DTC P1669 on a BMW may include the engine cranking but not starting, the immobilizer warning light staying on, or the engine starting and then immediately stalling. In some cases, the vehicle may not start at all.
BMW DTC P1669 causes
The incorrect start value programming in the Electronic Immobilizer system can be caused by a variety of factors, such as a faulty key, a problem with the immobilizer unit, or issues with the programming itself. It can also occur if there has been a recent repair or replacement of the immobilizer system components without proper reprogramming.
BMW DTC P1669 seriousness
DTC P1669 is a serious issue as it can leave you stranded if your BMW fails to start. It is important to address this problem promptly to ensure the security and functionality of your vehicle.
How to diagnose DTC P1669 on BMW
To diagnose DTC P1669 on a BMW, a diagnostic scan tool capable of reading BMW specific fault codes is required. The technician will scan the vehicle’s computer system to retrieve the fault code and further investigate the Electronic Immobilizer system for any issues. Additionally, checking the key fob and ensuring it is functioning properly is essential.
How to fix DTC P1669 on BMW
Fixing DTC P1669 on a BMW typically involves reprogramming the Electronic Immobilizer system with the correct start value. This process may require specialized equipment and knowledge, so it is recommended to have the repair performed by a qualified automotive technician or BMW dealership.
How to erase DTC P1669 on BMW
Once the issue with the Electronic Immobilizer system has been addressed and fixed, the DTC P1669 fault code can be erased using a diagnostic scan tool. The technician will clear the code from the vehicle’s computer system, and if the issue has been successfully resolved, the fault code should not reappear.
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.