03021 - Local databus 3

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03021 - Local databus 3: Electrical Fault in Circuit

Possible Symptoms

  • Warning lights or messages in Instrument Cluster
  • Feature(s) of vehicle inoperative.

Possible Causes

  • Wiring Harness Issue
  • Failed Electronics

Possible Solutions

  • Repair Repair Wiring Harness
  • Replace Failed Electronics

Special Notes

  • When this fault code is flagged, it is important to check other control modules for fault codes. Different slave modules for different systems may be on the same bus (wire), thus one failed item causes several other items no longer perform to factory design.
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