OBD-II Network Error Code U0199: How to Fix It

Q: What causes U0199 error code?

U0199 is typically caused by blown fuses, damaged wiring in the door harness, loose electrical connections, or a failed door control module. Door harness damage from repeated opening/closing is most common.

Q: Can I drive with U0199 code?

Yes, U0199 is not a safety-critical code and won't prevent driving. However, you may experience issues with power windows, door locks, or mirror controls on the affected door until repaired.

Q: How much does it cost to fix U0199?

Costs range from $5-20 for fuses or minor wiring repairs to $200-500 for door control module replacement. Most issues are resolved with simple fuse replacement or wiring repairs.

Q: Will U0199 cause my car to fail inspection?

In most states, U0199 will not cause emissions test failure as it's a communication code, not an emissions-related fault. However, some states may fail vehicles with any active codes.

Q: How do I prevent U0199 from happening again?

Regularly inspect door wiring harnesses for damage, avoid slamming doors excessively, and address any door alignment issues that might stress the wiring. Keep door hinges lubricated to reduce stress on electrical connections.

Abstract

Error code U0199 indicates your vehicle's computer has lost communication with door control module A. This typically affects power windows, door locks, or other door-related electrical functions on one side of your vehicle.