Network Codes
1,532 OBD-II diagnostic trouble codes in this category.
Showing page 7 of 16 (1,532 codes total)
| Code | Description | Subsystem | Severity |
|---|---|---|---|
| U0430 | Invalid Data Received From Tire Pressure Monitor Module | Data Integrity | High |
| U0431 | Invalid Data Received From Body Control Module A | Data Integrity | High |
| U0432 | Invalid Data Received From Multi-axis Acceleration Sensor Module A | Data Integrity | High |
| U0433 | Invalid Data Received From Front Distance Range Sensor - Single Sensor or Center | Data Integrity | High |
| U0434 | Invalid Data Received From Active Roll Control Module | Data Integrity | High |
| U0435 | Invalid Data Received From Power Steering Control Module - Rear | Data Integrity | High |
| U0436 | Invalid Data Received From Differential Control Module - Front | Data Integrity | High |
| U0437 | Invalid Data Received From Differential Control Module - Rear | Data Integrity | High |
| U0438 | Invalid Data Received From Trailer Brake Control Module | Data Integrity | High |
| U0439 | Invalid Data Received From All Terrain Control Module | Data Integrity | High |
| U043A | Invalid Data Received From Suspension Control Module B | Data Integrity | High |
| U043B | Invalid Data Received From Front Distance Range Sensor - Left | Data Integrity | High |
| U043C | Invalid Data Received From Front Distance Range Sensor - Right | Data Integrity | High |
| U043D | Invalid Data Received From Accelerator Pedal Module | Data Integrity | High |
| U043E | Invalid Data Received From Vacuum Sensor A | Data Integrity | High |
| U043F | Invalid Data Received From Vacuum Sensor B | Data Integrity | High |
| U0440 | Invalid Data Received From Pedestrian Alert Control Module | Data Integrity | High |
| U0441 | Invalid Data Received From Emissions Critical Control Information | Data Integrity | High |
| U0442 | Invalid Data Received From ECM/PCM B | Data Integrity | High |
| U0443 | Invalid Data Received From Body Control Module B | Data Integrity | High |
| U0444 | Invalid Data Received From Body Control Module C | Data Integrity | High |
| U0445 | Invalid Data Received From Body Control Module D | Data Integrity | High |
| U0446 | Invalid Data Received From Body Control Module E | Data Integrity | High |
| U0447 | Invalid Data Received From Serial Data Gateway Module A | Data Integrity | High |
| U0448 | Invalid Data Received From Serial Data Gateway Module B | Data Integrity | High |
| U0449 | Invalid Data Received From Serial Data Gateway Module C | Data Integrity | High |
| U044A | Invalid Data Received From Serial Data Gateway Module D | Data Integrity | High |
| U044B | Invalid Data Received From Battery Energy Control Module C | Data Integrity | High |
| U044C | Invalid Data Received From Hybrid/EV Battery Inductive Charging Module | Data Integrity | High |
| U044D | Invalid Data Received From Generator B Control Module | Data Integrity | High |
| U044F | Invalid Data Received From Mirror Control Module B | Data Integrity | High |
| U0451 | Invalid Data Received From Serial Data Gateway Module E | Data Integrity | High |
| U0452 | Invalid Data Received From Restraints Control Module | Data Integrity | High |
| U0453 | Invalid Data Received From Side Restraints Control Module - Left | Data Integrity | High |
| U0454 | Invalid Data Received From Side Restraints Control Module - Right | Data Integrity | High |
| U0455 | Invalid Data Received From Restraints Occupant Classification System Module | Data Integrity | High |
| U0456 | Invalid Data Received From Coolant Temperature Control Module | Data Integrity | High |
| U0457 | Invalid Data Received From Information Center A | Data Integrity | High |
| U0458 | Invalid Data Received From Information Center B | Data Integrity | High |
| U0459 | Invalid Data Received From Head Up Display | Data Integrity | High |
| U045A | Invalid Data Received From Parking Assist Control Module A | Data Integrity | High |
| U045B | Invalid Data Received From Anti-Lock Brake System (ABS) Control Module B | Data Integrity | High |
| U045C | Invalid Data Received From Power Steering Control Module “B” | Data Integrity | High |
| U045D | Invalid Data Received From Automated Driving System Control Module A | Data Integrity | High |
| U045E | Invalid Data Received From Automated Driving System Control Module B | Data Integrity | High |
| U045F | Invalid Data Received From Automated Driving System Interface Module “A” | Data Integrity | High |
| U0460 | Invalid Data Received From Automated Driving System Interface Module “B” | Data Integrity | High |
| U0461 | Invalid Data Received From Audible Alert Control Module | Data Integrity | High |
| U0462 | Invalid Data Received From Compass Module | Data Integrity | High |
| U0463 | Invalid Data Received From Navigation Display Module | Data Integrity | High |
| U0464 | Invalid Data Received From Navigation Control Module | Data Integrity | High |
| U0465 | Invalid Data Received From PTO Control Module | Data Integrity | High |
| U0466 | Invalid Data Received From HVAC Control Module - Rear | Data Integrity | High |
| U0467 | Invalid Data Received From Fuel Additive Control Module | Data Integrity | High |
| U0468 | Invalid Data Received From Fuel Cell Control Module | Data Integrity | High |
| U0469 | Invalid Data Received From Starter / Generator Control Module | Data Integrity | High |
| U046A | Invalid Data Received From Sunroof Control Module | Data Integrity | High |
| U046B | Invalid Data Received From Global Positioning System Module | Data Integrity | High |
| U046C | Invalid Data Received From A/C Compressor Control Module | Data Integrity | High |
| U046D | Invalid Data Received from Fuel Pump Control Module B | Data Integrity | High |
| U046E | Invalid Data Received From Exhaust Gas Sensor Module B | Data Integrity | High |
| U0471 | Invalid Data Received From Restraints System Sensor A | Data Integrity | High |
| U0472 | Invalid Data Received From Restraints System Sensor B | Data Integrity | High |
| U0473 | Invalid Data Received From Restraints System Sensor C | Data Integrity | High |
| U0474 | Invalid Data Received From Restraints System Sensor D | Data Integrity | High |
| U0475 | Invalid Data Received From Restraints System Sensor E | Data Integrity | High |
| U0476 | Invalid Data Received From Restraints System Sensor F | Data Integrity | High |
| U0477 | Invalid Data Received From Restraints System Sensor G | Data Integrity | High |
| U0478 | Invalid Data Received From Restraints System Sensor H | Data Integrity | High |
| U0479 | Invalid Data Received From Restraints System Sensor I | Data Integrity | High |
| U047A | Invalid Data Received From Restraints System Sensor J | Data Integrity | High |
| U047B | Invalid Data Received From Restraints System Sensor K | Data Integrity | High |
| U047C | Invalid Data Received From Restraints System Sensor L | Data Integrity | High |
| U047D | Invalid Data Received From Restraints System Sensor M | Data Integrity | High |
| U047E | Invalid Data Received From Restraints System Sensor N | Data Integrity | High |
| U047F | Invalid Data Received From Seat Belt Pretensioner Module A | Data Integrity | High |
| U0480 | Invalid Data Received From Seat Belt Pretensioner Module B | Data Integrity | High |
| U0481 | Invalid Data Received From Automatic Lighting Control Module | Data Integrity | High |
| U0482 | Invalid Data Received From Headlamp Leveling Control Module A | Data Integrity | High |
| U0483 | Invalid Data Received From Lighting Control Module - Front | Data Integrity | High |
| U0484 | Invalid Data Received From Lighting Control Module - Rear A | Data Integrity | High |
| U0485 | Invalid Data Received From Radio | Data Integrity | High |
| U0486 | Invalid Data Received From Antenna Control Module | Data Integrity | High |
| U0487 | Invalid Data Received From Audio Amplifier A | Data Integrity | High |
| U0488 | Invalid Data Received From Digital Disc Player/Changer Module A | Data Integrity | High |
| U0489 | Invalid Data Received From Digital Disc Player/Changer Module B | Data Integrity | High |
| U048A | Invalid Data Received From Digital Disc Player/Changer Module C | Data Integrity | High |
| U048B | Invalid Data Received From Headlamp Leveling Control Module B | Data Integrity | High |
| U0491 | Invalid Data Received From Digital Disc Player/Changer Module D | Data Integrity | High |
| U0492 | Invalid Data Received From Television | Data Integrity | High |
| U0493 | Invalid Data Received From Personal Computer | Data Integrity | High |
| U0494 | Invalid Data Received From Digital Audio Control Module A | Data Integrity | High |
| U0495 | Invalid Data Received From Digital Audio Control Module B | Data Integrity | High |
| U0496 | Invalid Data Received From Subscription Entertainment Receiver Module | Data Integrity | High |
| U0497 | Invalid Data Received From Entertainment Control Module - Rear A | Data Integrity | High |
| U0498 | Invalid Data Received From Telephone Control Module | Data Integrity | High |
| U0499 | Invalid Data Received From Telematic Control Module | Data Integrity | High |
| U049A | Invalid Data Received From Door Control Module A | Data Integrity | High |
| U049B | Invalid Data Received From Tachograph Module | Data Integrity | High |
| U049C | Invalid Data Received From Battery Charger Control Module A | 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.