U0304
Software Incompatibility with Cruise Control Module
2002-2005 Ford Explorer 4.6L V8
Moderate SeverityNetworkGeneric (SAE)
Description
Software incompatibility with the cruise control system causing data errors.
Symptoms
- Cruise control erratic
- Adaptive cruise not engaging
- Speed set point drifting
- Cruise control disabling unexpectedly
Common Causes
- Cruise module software outdated
- Software conflict after update
- Module version mismatch
Diagnostic Steps
- Check cruise control module software version
- Update module software
- Check for known software conflicts
- Verify module compatibility
Repair Notes
Update cruise control module software to version compatible with other vehicle modules.
Related Codes
Other Network Codes
- U0001High Speed CAN Communication Bus
- U0001High Speed CAN Communication Bus
- U0001High Speed CAN Communication Bus
- U0002High Speed CAN Communication Bus Performance
- U0002High Speed CAN Communication Bus Performance
- U0002High Speed CAN Communication Bus Performance
- U0003High Speed CAN Communication Bus (+) Open
- U0003High Speed CAN Communication Bus (+) Open
- U0003High Speed CAN Communication Bus (+) Open
- U0004High Speed CAN Communication Bus (+) Low
U0304 on Other Vehicles
Common Questions
What does code U0304 mean on a 2002-2005 Ford Explorer?
U0304 stands for "Software Incompatibility with Cruise Control Module". Software incompatibility with the cruise control system causing data errors.
What are the symptoms of U0304 on a Ford Explorer?
Common symptoms of U0304 include: Cruise control erratic, Adaptive cruise not engaging, Speed set point drifting, Cruise control disabling unexpectedly.
What causes U0304 on a 2002-2005 Ford Explorer?
Common causes of U0304 include: Cruise module software outdated, Software conflict after update, Module version mismatch.