Skip to content
Book on WhatsApp

U045F

Invalid Data Received From Automated Driving System Interface Module A

A receiving module detected implausible data from the automated driving system interface module A (HMI/handover gateway between ADS and conventional vehicle systems). Status flags or take-over requests fail plausibility checks and are rejected.

  • Check engine light: Yes
  • Emissions related: No
  • Repair difficulty: hard

Symptoms

  • Multiple warning lights may illuminate
  • Affected modules may go into limp mode or shut down
  • Specific functions inoperative depending on module
  • Diagnostic tools may show communication faults

Common causes

Ordered by how often each turns out to be the cause.

  • Module internal fault or sensor input driftCommon
  • Software version mismatch after replacementPossible
  • Gateway module routing CAN messages incorrectlyLess likely

Parts involved

  • Ads Interface Module A

U045F is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.