BMW DTC U1119 – Message Monitoring Speed Check Sum Error
DTC U1119 meaning on BMW
DTC U1119 on a BMW refers to a Message Monitoring Speed Check Sum Error. This diagnostic trouble code indicates that there is an error in the speed check sum of a message being monitored by the vehicle’s control module.
BMW DTC U1119 symptoms
Symptoms of DTC U1119 on a BMW may include issues with the vehicle’s transmission, such as erratic shifting or hesitation during acceleration. The vehicle may also experience a decrease in fuel efficiency and overall performance.
BMW DTC U1119 causes
The causes of DTC U1119 on a BMW can vary, but common reasons include faulty wiring or connections in the communication network, a malfunctioning control module, or software issues within the vehicle’s system.
BMW DTC U1119 seriousness
While DTC U1119 may not always result in immediate drivability issues, it is important to address this error code promptly. Ignoring this code can lead to further damage to the vehicle’s components and potentially result in more severe transmission problems.
How to diagnose DTC U1119 on BMW
To diagnose DTC U1119 on a BMW, a mechanic would typically use a diagnostic scanner to retrieve the specific fault codes stored in the vehicle’s control module. They would then perform a thorough inspection of the vehicle’s wiring, connections, and control modules to identify the root cause of the issue.
How to fix DTC U1119 on BMW
Fixing DTC U1119 on a BMW may involve repairing or replacing any faulty wiring or connections in the communication network. Additionally, updating the vehicle’s software or replacing a malfunctioning control module may be necessary to resolve the issue.
How to erase DTC U1119 on BMW
To erase DTC U1119 on a BMW, a mechanic can use a diagnostic scanner to clear the fault codes stored in the vehicle’s control module. Once the issue has been addressed and fixed, the code can be erased to reset the system and ensure that the error does not reoccur.
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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