U3003
Control Module Calibration Not Complete
2003-2008 Subaru Forester 2.5L H4
Moderate SeverityNetworkGeneric (SAE)
Description
A module calibration or initialization procedure has not been completed after programming or replacement.
Symptoms
- Module in default mode
- System not performing optimally
- Calibration warning message
- Adaptive values not learned
Common Causes
- Programming completed but calibration skipped
- Calibration drive cycle not completed
- Battery disconnected during calibration
- Calibration procedure interrupted
Diagnostic Steps
- Perform required calibration procedure
- Complete calibration drive cycle
- Run module-specific initialization
- Verify calibration parameters stored
- Perform post-calibration verification test
Repair Notes
Complete the required calibration procedure. Some calibrations require specific driving conditions.
Related Codes
Other Network Codes
- U0001High Speed CAN Communication Bus
- U0002High Speed CAN Communication Bus Performance
- U0003High Speed CAN Communication Bus (+) Open
- U0004High Speed CAN Communication Bus (+) Low
- U0005High Speed CAN Communication Bus (+) High
- U0006High Speed CAN Communication Bus (-) Open
- U0007High Speed CAN Communication Bus (-) Low
- U0008High Speed CAN Communication Bus (-) High
- U0009High Speed CAN Communication Bus Shorted Together
- U0010Medium Speed CAN Communication Bus
U3003 on Other Vehicles
Common Questions
What does code U3003 mean on a 2003-2008 Subaru Forester?
U3003 stands for "Control Module Calibration Not Complete". A module calibration or initialization procedure has not been completed after programming or replacement.
What are the symptoms of U3003 on a Subaru Forester?
Common symptoms of U3003 include: Module in default mode, System not performing optimally, Calibration warning message, Adaptive values not learned.
What causes U3003 on a 2003-2008 Subaru Forester?
Common causes of U3003 include: Programming completed but calibration skipped, Calibration drive cycle not completed, Battery disconnected during calibration, Calibration procedure interrupted.