What Does the P0949 Code Mean?
The P0949 OBD-II code indicates that the Automatic Transmission Control Module (TCM) has detected that the adaptive learning process for the auto shift manual feature has not been completed. This means that the transmission may not be operating at its optimal performance level.
What Causes the P0949 Code?
The primary cause of the P0949 code is the failure to perform a relearn procedure after servicing or repairing the automatic transmission. When parts of the transmission system are replaced or maintained, the TCM needs to recalibrate to ensure the transmission shifts smoothly. If this step is missed, the P0949 code will be stored.
What Are the Symptoms of the P0949 Code?
- Transmission shifting issues
- Delayed or harsh shifts
- Warning lights on the dashboard
- Poor driving performance
How Serious Is the P0949 Code?
The P0949 code is considered urgent, as it indicates a significant malfunction within the transmission system. Ignoring this code can lead to severe damage to the vehicle and potentially pose safety risks to the driver and passengers.
How to Diagnose the P0949 Code
To diagnose the P0949 code, a mechanic will typically follow these steps:
- Use an OBD-II scanner to confirm the presence of the P0949 code.
- Inspect the transmission system for any visible issues or recent repairs.
- Check for other related trouble codes that may be present.
- Perform the necessary relearn procedure for the transmission.
Common Repairs for the P0949 Code
Common repairs for resolving the P0949 code include:
- Performing the transmission relearn procedure.
- Repairing or replacing the Transmission Control Module (TCM) if it is found to be faulty.
- Ensuring that all transmission shift points are correctly calibrated.
How Much Does It Cost to Fix the P0949 Code?
The cost of fixing the P0949 code can vary widely depending on the specific repairs needed. Basic diagnostics and performing the relearn procedure can range from $100 to $200. If the TCM needs to be replaced, costs can increase significantly, potentially totaling $500 to $1500 depending on the vehicle make and model.
Can I Fix the P0949 Code Myself?
While some car owners may attempt to fix the P0949 code themselves by performing the relearn procedure, it is important to have a good understanding of the transmission system and the proper tools. If you are not confident in your abilities, it is recommended to consult a professional mechanic to avoid causing further issues.
