U2003
Module VIN Not Programmed
2002-2007 Buick Rendezvous 3.5L V6 🇩🇪
Moderate SeverityNetwork
Description
A replacement module has not been programmed with the vehicle identification number.
Symptoms
- Module not fully functional
- Security features disabled
- Module not recognized by other systems
- Immobilizer issues
- Feature restrictions
Common Causes
- Module replaced but VIN not written
- Programming procedure not completed
- Module rejects VIN programming
- Tool did not complete VIN write
Diagnostic Steps
- Perform VIN programming on new module
- Use manufacturer tool for VIN write
- Verify correct VIN being programmed
- Check for module programming prerequisites
- Verify module accepts VIN
Repair Notes
Program VIN into new module using manufacturer diagnostic tool. Some modules require online authorization.
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
U2003 on Other Vehicles
Common Questions
What does code U2003 mean on a 2002-2007 Buick Rendezvous?
U2003 stands for "Module VIN Not Programmed". A replacement module has not been programmed with the vehicle identification number.
What are the symptoms of U2003 on a Buick Rendezvous?
Common symptoms of U2003 include: Module not fully functional, Security features disabled, Module not recognized by other systems, Immobilizer issues, Feature restrictions.
What causes U2003 on a 2002-2007 Buick Rendezvous?
Common causes of U2003 include: Module replaced but VIN not written, Programming procedure not completed, Module rejects VIN programming, Tool did not complete VIN write.