U050C: Invalid Data Received From Door Control Module H

What it means

A control module received invalid data from door control module H. The code identifies a data validity fault; the specific affected function depends on the vehicle.

How it works

Door control module H reports door status and supported functions to other modules over the vehicle network. This code sets when a receiving module finds data from module H invalid; the code designation does not establish which physical door or feature module H serves on every vehicle.

Common causes

Most likely first.

1. Fault in the transmitting module
2. Network wiring or connector fault
3. Module power or ground fault
4. Software or configuration mismatch

Symptoms

• One or more functions controlled by the affected door module may not work correctly
• Related communication codes or system warnings may appear

How to diagnose it

1. Scan all modules and review freeze-frame details to identify the reporting module and any door, body, or network codes stored with U050C.
2. Check the door functions associated with module H, including latching, locking, windows, or mirrors where fitted, and note any warnings.
3. Inspect module H's connectors and accessible wiring, including any wiring routed through the door flex area, for corrosion, damage, or loose connections.
4. Check the module's power and ground using the manufacturer's procedure, especially if multiple functions on that door are affected.
5. Compare live door status data with the actual door and function states, then test network communication and verify module configuration using vehicle-specific information.

Common fixes

• Reconnect or clean a loose or corroded connector at door control module H.
• Repair damaged door harness or restore a poor module power or ground connection.
• Correct module software or configuration if the fault followed a replacement or programming event.
• Replace door control module H if its wiring, supply, and configuration are correct but it continues to send invalid data.

Can I keep driving?

Driving is generally possible if all doors latch securely and visibility is unaffected. Do not drive if a door cannot be secured, and use extra care if a window, mirror, or lock function is unavailable.