Network Codes
1,532 OBD-II diagnostic trouble codes in this category.
Showing page 8 of 16 (1,532 codes total)
| Code | Description | Subsystem | Severity |
|---|---|---|---|
| U049D | Invalid Data Received From Glow Plug Control Module 2 | Data Integrity | High |
| U049E | Invalid Data Received From Direct Ozone Reduction Catalyst Temperature Sensor | Data Integrity | High |
| U049F | Invalid Data Received From Transmission Range Control Module | Data Integrity | High |
| U04A0 | Invalid Data Received From Engine Coolant Pump Control Module | Data Integrity | High |
| U04A1 | Invalid Data Received From Hybrid/EV Battery Interface Control Module A | Data Integrity | High |
| U04A2 | Invalid Data Received From Hybrid/EV Battery Interface Control Module B | Data Integrity | High |
| U04A3 | Invalid Data Received From Hybrid/EV Battery Interface Control Module C | Data Integrity | High |
| U04A4 | Invalid Data Received From Particulate Matter Sensor A | Data Integrity | High |
| U04A5 | Invalid Data Received From Hybrid/EV Battery Interface Control Module E | Data Integrity | High |
| U04A6 | Invalid Data Received From Hybrid/EV Battery Interface Control Module F | Data Integrity | High |
| U04A7 | Invalid Data Received From Hybrid/EV Battery Interface Control Module G | Data Integrity | High |
| U04A8 | Invalid Data Received From Hybrid/EV Battery Interface Control Module H | Data Integrity | High |
| U04A9 | Invalid Data Received From Hybrid/EV Battery Interface Control Module I | Data Integrity | High |
| U04AA | Invalid Data Received From Hybrid/EV Battery Interface Control Module J | Data Integrity | High |
| U04AB | Invalid Data Received From Hybrid/EV Battery Interface Control Module K | Data Integrity | High |
| U04AC | Invalid Data Received From Hybrid/EV Battery Interface Control Module L | Data Integrity | High |
| U04AD | Invalid Data Received From Hybrid/EV Battery Interface Control Module M | Data Integrity | High |
| U04AE | Invalid Data Received From Hybrid/EV Battery Interface Control Module N | Data Integrity | High |
| U04AF | Invalid Data Received From Hybrid/EV Battery Interface Control Module O | Data Integrity | High |
| U04B0 | Invalid Data Received From Hybrid/EV Battery Interface Control Module P | Data Integrity | High |
| U04B1 | Invalid Data Received From Battery Monitor Module | Data Integrity | High |
| U04B2 | Invalid Data Received From Particulate Matter Sensor B | Data Integrity | High |
| U04B3 | Invalid Data Received From Planetary Gear Set Control Module | Data Integrity | High |
| U04B4 | Invalid Data Received From Brake Blending Actuator | Data Integrity | High |
| U04B5 | Invalid Data Received from Brake System Control Module B | Data Integrity | High |
| U04B6 | Invalid Data Received From Catalyst Heater Control Module | Data Integrity | High |
| U04BA | Invalid Data Received from Switch Input Module “A” | Data Integrity | High |
| U04BB | Invalid Data Received from Switch Input Module “B” | Data Integrity | High |
| U04BC | Invalid Data Received from Switch Input Module “C” | Data Integrity | High |
| U04BD | Invalid Data Received From Park Lock/Pawl Control Module | Data Integrity | High |
| U04BE | Invalid Data Received From Battery Charger Control Module B | Data Integrity | High |
| U04BF | Invalid Data Received from Drive Motor A Clutch Actuator | Data Integrity | High |
| U04C0 | Invalid Data Received from Battery Management Control Module | Data Integrity | High |
| U0501 | Invalid Data Received From Door Control Module B | Data Integrity | High |
| U0502 | Invalid Data Received From Door Control Module C | Data Integrity | High |
| U0503 | Invalid Data Received From Door Control Module D | Data Integrity | High |
| U0504 | Invalid Data Received From Door Control Module E | Data Integrity | High |
| U0505 | Invalid Data Received From Door Control Module F | Data Integrity | High |
| U0506 | Invalid Data Received From Door Control Module G | Data Integrity | High |
| U0507 | Invalid Data Received From Folding Top Control Module | Data Integrity | High |
| U0508 | Invalid Data Received From Moveable Roof Control Module A | Data Integrity | High |
| U0509 | Invalid Data Received From Seat Control Module A | Data Integrity | High |
| U050A | Invalid Data Received From Seat Control Module B | Data Integrity | High |
| U050B | Invalid Data Received From Moveable Roof Control Module “B” | Data Integrity | High |
| U050C | Invalid Data Received From Door Control Module H | Data Integrity | High |
| U050D | Invalid Data Received From Wireless Accessory Charging Module A | Data Integrity | High |
| U050E | Invalid Data Received From Wireless Accessory Charging Module B | Data Integrity | High |
| U0511 | Invalid Data Received From Seat Control Module C | Data Integrity | High |
| U0512 | Invalid Data Received From Seat Control Module D | Data Integrity | High |
| U0513 | Invalid Data Received From Yaw Rate Sensor Module | Data Integrity | High |
| U0514 | Invalid Data Received From Mirror Control Module A | Data Integrity | High |
| U0515 | Invalid Data Received From Remote Function Actuation Module | Data Integrity | High |
| U0516 | Invalid Data Received From Door Switch A | Data Integrity | High |
| U0517 | Invalid Data Received From Door Switch B | Data Integrity | High |
| U0518 | Invalid Data Received From Door Switch C | Data Integrity | High |
| U0519 | Invalid Data Received From Door Switch D | Data Integrity | High |
| U051A | Invalid Data Received From Door Switch E | Data Integrity | High |
| U0521 | Invalid Data Received From Door Switch F | Data Integrity | High |
| U0522 | Invalid Data Received From Door Switch G | Data Integrity | High |
| U0523 | Invalid Data Received From Door Window Motor A | Data Integrity | High |
| U0524 | Invalid Data Received From Door Window Motor B | Data Integrity | High |
| U0525 | Invalid Data Received From Door Window Motor C | Data Integrity | High |
| U0526 | Invalid Data Received From Door Window Motor D | Data Integrity | High |
| U0527 | Invalid Data Received From Door Window Motor E | Data Integrity | High |
| U0528 | Invalid Data Received From Door Window Motor F | Data Integrity | High |
| U0529 | Invalid Data Received From Door Window Motor G | Data Integrity | High |
| U052A | Invalid Data Received From Heated Steering Wheel Module | Data Integrity | High |
| U052F | Invalid Data Received From Object Detection Maintenance Control Module A | Data Integrity | High |
| U0530 | Invalid Data Received From Object Detection Maintenance Control Module B | Data Integrity | High |
| U0531 | Invalid Data Received From Rear Gate Module | Data Integrity | High |
| U0532 | Invalid Data Received From Rain Sensing Module | Data Integrity | High |
| U0533 | Invalid Data Received From Side Obstacle Detection Control Module A | Data Integrity | High |
| U0534 | Invalid Data Received From Side Obstacle Detection Control Module B | Data Integrity | High |
| U0535 | Invalid Data Received From Convenience Recall Module | Data Integrity | High |
| U0536 | Invalid Data Received From Lateral Acceleration Sensor Module | Data Integrity | High |
| U0537 | Invalid Data Received From Column Lock Module | Data Integrity | High |
| U0538 | Invalid Data Received From Digital Audio Control Module C | Data Integrity | High |
| U0539 | Invalid Data Received From Digital Audio Control Module D | Data Integrity | High |
| U053A | Invalid Data Received From Entrapment Control Module A | Data Integrity | High |
| U053B | Invalid Data Received From Image Processing Module A | Data Integrity | High |
| U053C | Invalid Data Received From Image Processing Module B | Data Integrity | High |
| U053D | Invalid Data Received From Image Processing Module C | Data Integrity | High |
| U0541 | Invalid Data Received From Entrapment Control Module B | Data Integrity | High |
| U0542 | Invalid Data Received From Headlamp Control Module A | Data Integrity | High |
| U0543 | Invalid Data Received From Headlamp Control Module B | Data Integrity | High |
| U0544 | Invalid Data Received From Parking Assist Control Module B | Data Integrity | High |
| U0545 | Invalid Data Received From Running Board Control Module A | Data Integrity | High |
| U0546 | Invalid Data Received From Entertainment Control Module - Front | Data Integrity | High |
| U0547 | Invalid Data Received From Seat Control Module E | Data Integrity | High |
| U0548 | Invalid Data Received From Seat Control Module F | Data Integrity | High |
| U0549 | Invalid Data Received From Remote Accessory Module | Data Integrity | High |
| U054A | Invalid Data Received From Entertainment Control Module - Rear B | Data Integrity | High |
| U054B | Invalid Data Received From Interior Lighting Control Module A | Data Integrity | High |
| U054C | Invalid Data Received from Seat Control Module G | Data Integrity | High |
| U054D | Invalid Data Received from Seat Control Module H | Data Integrity | High |
| U054E | Invalid Data Received from Seat Control Module J | Data Integrity | High |
| U054F | Invalid Data Received From Side Obstacle Detection Control Module C | Data Integrity | High |
| U0550 | Invalid Data Received From Side Obstacle Detection Control Module D | Data Integrity | High |
| U0551 | Invalid Data Received From Impact Classification System Module | Data Integrity | High |
| U0552 | Invalid Data Received From Running Board Control Module B | Data Integrity | High |
About Network Codes
This page lists all 1,532 OBD-II diagnostic trouble codes classified under the Network category. These codes are stored by your vehicle's onboard computer when a sensor detects a malfunction in the network system. Each code begins with a letter indicating the system (P for Powertrain, B for Body, C for Chassis, U for Network) followed by four digits that identify the specific fault.
When your check engine light comes on, an OBD-II scanner reads these stored codes to help pinpoint the problem. Generic codes (where the second digit is 0) follow the SAE J2012 standard and mean the same thing on every vehicle. Manufacturer-specific codes (where the second digit is 1) may have different meanings depending on the vehicle brand.
Click any code in the table above to see its full description, possible causes, common symptoms, and step-by-step repair guidance. Use the search box to quickly find a specific code within this category.