U3003moderate severityNetwork
Control Module Calibration Not Complete
on 2014 Toyota Highlander 2.7L I4 · AWD
What this code means
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.
Other Network codes on this vehicle
U0001
High Speed CAN Communication Bus
U0002
High Speed CAN Communication Bus Performance
U0003
High Speed CAN Communication Bus (+) Open
U0004
High Speed CAN Communication Bus (+) Low
U0005
High Speed CAN Communication Bus (+) High
U0006
High Speed CAN Communication Bus (-) Open
U0007
High Speed CAN Communication Bus (-) Low
U0008
High Speed CAN Communication Bus (-) High
U0009
High Speed CAN Communication Bus Shorted Together
U0010
Medium Speed CAN Communication Bus