U1449
Implausible ERS Message Recieved Transmission Control Module
U1449 is an OBD-II diagnostic trouble code meaning: Implausible ERS Message Recieved Transmission Control Module. Common causes: problems with the wiring harness between the tcm and the ers system, ers control module malfunction. Estimated repair cost: $17–133.
Symptoms
- Switching to emergency transmission mode
- Engine power limitation
- Check Engine or Transmission Warning Light Illuminates
- Unusual transmission behavior
- Reduced efficiency of regenerative braking
Causes
- Problems with the wiring harness between the TCM and the ERS system
- ERS control module malfunction
- Software error in TCM or ERS
- Damage to connectors or corrosion of contacts
- Malfunction of sensors associated with the ERS system
How to Fix
- Check wiring harness and connectors between TCM and ERS
- Read complete fault codes from all modules
- Update TCM and ERS software
- Check the functionality of the ERS module
- Test the regenerative braking system
Related codes
FAQ
What does the U1449 code mean?
U1449 is an OBD-II diagnostic trouble code that indicates: Implausible ERS Message Recieved Transmission Control Module
What causes a U1449 error code?
The most common causes of U1449 include: Problems with the wiring harness between the TCM and the ERS system; ERS control module malfunction; Software error in TCM or ERS; Damage to connectors or corrosion of contacts.
How do I fix a U1449 diagnostic trouble code?
To fix U1449: Check wiring harness and connectors between TCM and ERS. Read complete fault codes from all modules. Update TCM and ERS software. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U1449?
Limited driving only, diagnose soon
How much does it cost to fix U1449?
The estimated repair cost for U1449 is $17–133. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat