What Does P0949 Mean?
DTC P0949 indicates that the auto shift manual (ASM) transmission has not completed its adaptive learning process. Automated manual transmissions require a learning procedure where the TCM calibrates clutch engagement points, shift timing, and actuator positions to the specific vehicle's drivetrain characteristics. This code is typically set after a TCM replacement, battery disconnect, or transmission service where the adaptation values were reset.
Common Causes
35%
TCM adaptive values recently reset (battery disconnect or TCM replacement)
25%
Insufficient driving under the required conditions for learning to complete
20%
Ongoing clutch or actuator fault preventing the learning algorithm from converging
10%
TCM software issue or incomplete reprogramming after update
10%
Intermittent sensor fault causing the learning process to restart repeatedly
Diagnostic Steps
1
Step 1: Check if the TCM was recently replaced, reprogrammed, or if the battery was disconnected. If so, this code is expected and the adaptation process needs time to complete.
2
Step 2: Perform the manufacturer's recommended adaptation drive procedure. This typically requires driving at various speeds with multiple stop-and-go cycles, highway driving, and hill starts under normal conditions.
3
Step 3: Check for other stored DTCs that may be preventing the adaptive learning from completing. Address any active sensor or actuator faults first.
4
Step 4: If the code persists after extended driving, use the scan tool to initiate a forced clutch adaptation or actuator learning procedure if the manufacturer provides one.
5
Step 5: If the learning still fails to complete, inspect clutch wear and actuator operation. A worn clutch beyond the adaptation range or a malfunctioning actuator will prevent successful calibration.
Estimated Repair Cost
$0 - $200
Parts + labor, varies by vehicle and location
DTC P0949 indicates that the auto shift manual (ASM) transmission has not completed its adaptive learning process. Automated manual transmissions require a learning procedure where the TCM calibrates clutch engagement points, shift timing, and actuator positions to the specific vehicle's drivetrain ...
The most common cause of P0949 (Auto Shift Manual Adaptive Learning Not Complete) is: TCM adaptive values recently reset (battery disconnect or TCM replacement)
Typical repair costs for P0949 range from $0 to $200, depending on the vehicle, location, and whether you do it yourself or go to a shop.
While the adaptive learning is incomplete, the transmission may shift roughly, hesitate during gear changes, or exhibit jerky clutch engagement. This is generally a temporary condition that resolves with driving. The vehicle is safe to drive but shift quality will be suboptimal until learning completes.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P0949 to identify the root cause.
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Quick Info
Category
Powertrain
System
Transmission Control / Adaptive Learning
Difficulty
Type
Generic (SAE)
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