BMW DTC U1200 – Message Monitoring TCM Check Sum Error
DTC U1200 meaning on BMW
The DTC U1200 code on a BMW refers to a Message Monitoring Transmission Control Module (TCM) Check Sum Error. This error indicates that there is a discrepancy in the data checksum of the TCM, which is responsible for managing the transmission system of the vehicle.
BMW DTC U1200 symptoms
Symptoms of the BMW DTC U1200 code may include:
- Transmission shifting issues
- Reduced fuel efficiency
- Check Engine Light (CEL) illuminated on the dashboard
BMW DTC U1200 causes
Common causes of the BMW DTC U1200 code include:
- Corrupted TCM software
- Faulty TCM hardware
- Electrical issues in the TCM circuit
BMW DTC U1200 seriousness
The DTC U1200 code should be addressed promptly as it can lead to transmission malfunctions and potentially cause further damage to the vehicle if left unresolved.
How to diagnose DTC U1200 on BMW
To diagnose the DTC U1200 on a BMW, a mechanic would typically:
- Use a diagnostic scanner to retrieve the fault codes
- Inspect the TCM for any visible damage or corrosion
- Check the TCM wiring and connectors for loose connections or shorts
How to fix DTC U1200 on BMW
To fix the DTC U1200 on a BMW, the following steps may be taken:
- Update the TCM software to the latest version
- Replace the TCM if it is found to be faulty
- Repair any damaged wiring or connectors in the TCM circuit
How to erase DTC U1200 on BMW
To erase the DTC U1200 code on a BMW, the fault must first be fixed, and then a diagnostic scanner can be used to clear the code from the vehicle’s memory.