Skip to content
Home DTC Codes U0426 Medium · 45-75min
U0426 Warning

OBD2 Code U0426: Invalid module data

Invalid data from a module.

ECU: ECM

Detected Root Component

Network Component

Confidence level: low

Observed Symptoms

  • Loss of communication between modules
  • Dashboard errors

Possible Causes

  • Defective sensor
  • Incorrect module configuration
  • Damaged CAN wiring
  • Damaged wiring
Diagnostic Progress 0 %
Difficulty Medium
Est. time 45-75min
Tools Required 4 tool(s)

Tools Required

multimeter OBD scanner wiring diagram oscilloscope (optional)

Interactive Diagnostic

Answer each question to calculate your diagnostic score.

Diagnostic Result

0
certainty points

Recommended action:

Find the part:

Answer the questions above to get the result.

Was this diagnostic helpful?

Parts likely to be the cause (Moteur (général))

Moteur (général)

Moteur (général)

Photo d'illustration : Moteur (général)

© DTC-Logic.com

Click on an image to enlarge

Frequently asked questions about code U0426

What does code U0426 mean?

OBD2 Code U0426: Invalid module data. Invalid data from a module.

What are the symptoms of code U0426?

Code U0426 may cause: Loss of communication between modules, Dashboard errors. The intensity of these symptoms varies depending on the vehicle and driving conditions.

What causes code U0426?

The most common causes of code U0426 are: Defective sensor, Incorrect module configuration, Damaged CAN wiring, Damaged wiring. A proper OBD2 diagnostic will pinpoint the exact cause.

Is it serious to drive with code U0426?

Code U0426 has moderate severity (Warning). Short-term driving remains possible, but a prompt check is recommended to prevent worsening.

How do I fix code U0426?

Start by reading the code with an OBD2 scanner, then follow the interactive decision tree on this page. Priority causes to check: Defective sensor, Incorrect module configuration, Damaged CAN wiring, Damaged wiring. Difficulty: Medium · Estimated time: 45-75min.