U0503 - Invalid Data Received From Door Control Module D
U0503 is a generic network/communication diagnostic trouble code indicating Invalid Data Received From Door Control Module D. It relates to the System-Specific system.
DTC Breakdown (SAE J2012)
| System | Network/Communication (U) |
| Type | Generic |
| Subsystem | System-Specific |
| Fault Index | 03 |
| Standard | SAE J2012 / ISO 15031-6 |
What does diagnostic code U0503 mean?
The dtc/">diagnostic trouble code U0503 represents Invalid Data Received From Door Control Module D. This standard generic code points to a monitored fault condition in the vehicle's Network/Communication network.
Detailed diagnostic guides and specific fix procedures for code U0503 are currently being compiled. Always verify check engine warnings with a qualified mechanic.
Frequently Asked Questions about U0503
What does U0503 mean?
The diagnostic trouble code U0503 represents Invalid Data Received From Door Control Module D. This standard generic code points to a monitored fault condition in the vehicle's Network/Communication network.
What is the system for U0503?
The U0503 code is located in the vehicle's Network/Communication network.