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U0401

Invalid Data Received from ECM/PCM

2015-2021 Kia Sedona 3.3L V6

Moderate SeverityNetworkGeneric (SAE)

Description

The data received from the PCM is invalid or corrupted.

Symptoms

  • Various warning lights
  • Erratic system behavior

Common Causes

  • PCM software issue
  • CAN bus noise
  • PCM failure
  • Wiring interference

Diagnostic Steps

  1. Update PCM software
  2. Check for TSBs
  3. Test CAN bus signal quality
  4. Check for electromagnetic interference

Repair Notes

Reprogram PCM. Check CAN bus.

Related Codes

U0100Lost Communication with ECM/PCM

Other Network Codes

U0401 on Other Vehicles

Common Questions

What does code U0401 mean on a 2015-2021 Kia Sedona?

U0401 stands for "Invalid Data Received from ECM/PCM". The data received from the PCM is invalid or corrupted.

What are the symptoms of U0401 on a Kia Sedona?

Common symptoms of U0401 include: Various warning lights, Erratic system behavior.

What causes U0401 on a 2015-2021 Kia Sedona?

Common causes of U0401 include: PCM software issue, CAN bus noise, PCM failure, Wiring interference.

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