OBD2 · Network
U04xx codes: invalid data received from a module
32 codes in this range, all generic — the same meaning on every make. Codes set when messages from another module arrive but make no sense — implausible values or failed integrity checks. The code names the module whose data was rejected.
What usually causes codes in this area
- A fault inside the sending module or in one of its sensors
- A software mismatch between modules
- Interference from damaged network wiring
Can you keep driving?
It depends on the module: bad data from the engine, transmission, brakes or steering needs prompt attention; comfort functions can wait.
All U04xx codes
| Code | Meaning |
|---|---|
| U0400 | Invalid Data Received |
| U0401 | Invalid Data Received From ECM/PCM "A" |
| U0402 | Invalid Data Received From Transmission Control Module |
| U0403 | Invalid Data Received From Transfer Case Control Module |
| U0404 | Invalid Data Received From Gear Shift Control Module |
| U0405 | Invalid Data Received From Cruise Control Module |
| U0406 | Invalid Data Received From Fuel Injector Control Module |
| U0407 | Invalid Data Received From Glow Plug Control Module |
| U0408 | Invalid Data Received From Throttle Actuator Control Module |
| U0409 | Invalid Data Received From Alternative Fuel Control Module |
| U0410 | Invalid Data Received From Fuel Pump Control Module |
| U0411 | Invalid Data Received From Drive Motor Control Module |
| U0412 | Invalid Data Received From Battery Energy Control Module "A" |
| U0413 | Invalid Data Received From Battery Energy Control Module "B" |
| U0414 | Invalid Data Received From Four-Wheel Drive Clutch Control Module |
| U0415 | Invalid Data Received From Anti-Lock Brake System Control Module |
| U0416 | Invalid Data Received From Vehicle Dynamics Control Module |
| U0417 | Invalid Data Received From Park Brake Control Module |
| U0418 | Invalid Data Received From Brake System Control Module |
| U0419 | Invalid Data Received From Steering Effort Control Module |
| U0420 | Invalid Data Received From Power Steering Control Module |
| U0421 | Invalid Data Received From Ride Level Control Module |
| U0422 | Invalid Data Received From Body Control Module |
| U0423 | Invalid Data Received From Instrument Panel Control Module |
| U0424 | Invalid Data Received From HVAC Control Module |
| U0425 | Invalid Data Received From Auxiliary Heater Control Module |
| U0426 | Invalid Data Received From Vehicle Immobilizer Control Module |
| U0427 | Invalid Data Received From Vehicle Security Control Module |
| U0428 | Invalid Data Received From Steering Angle Sensor Module |
| U0429 | Invalid Data Received From Steering Column Control Module |
| U0430 | Invalid Data Received From Tire Pressure Monitor Module |
| U0431 | Invalid Data Received From Body Control Module "A" |
Read the codes from your own car
Plug an inexpensive Bluetooth LE or Wi-Fi OBD2 adapter into the port under the dashboard, and Brimly on your iPhone reads the stored, pending and permanent codes, explains each one offline and clears them once the fault is fixed. OBD diagnostics are part of Brimly Forever, a one-time purchase.
Requires iOS 18.1 or later. Free to download, with optional in-app purchases.