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U05BA: Invalid Data Received From Rear Radar Module D

A receiving module detected implausible data from rear radar module D. Distance/azimuth values fail plausibility checks and are rejected; blind-spot warning and rear cross-traffic alert are inhibited.

Medium severity. Can I keep driving?It depends on which control module has dropped out. If it affects the engine, brakes, or steering, do not continue your trip: call for roadside assistance.

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

Most likely causes

  • Module internal fault or sensor input drift
  • Software version mismatch after replacement
  • Gateway module routing CAN messages incorrectly

What to check, in order

Start with the simplest. You can tick off each step.

Good to know

  • Repair difficulty: medium

What each character of U05BA means

  • U: Communication network
  • 0: Generic code: same on every make
  • 5: Subsystem depends on the code range
  • BA: Specific fault in that system

Frequently asked questions

Can I keep driving with code U05BA?

It depends on which control module has dropped out. If it affects the engine, brakes, or steering, do not continue your trip: call for roadside assistance.

What causes code U05BA?

The most common causes are: module internal fault or sensor input drift; software version mismatch after replacement; gateway module routing CAN messages incorrectly.

Related codes

Sources

Values and procedures vary by manufacturer. If it affects brakes, steering, fuel or high voltage, see a professional. Updated: 2026-11-04. How we build these pages.