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Home >> Land Rover >> 2021 >> Defender 90 >> Repair and Diagnosis >> Steering >> Steering Control Systems >> Steering System - General Information -- Defender/L663 >> Steering System - General Information >> Diagnosis And Testing >> Steering System (G2400944) >> DTC U0080-81: Vehicle Communication Bus F - Invalid serial data received >> Possible Causes
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Possible Causes

  1. FlexRay circuit short circuit to ground, short circuit to power, open circuit, high resistance
  2. Invalid data received from another control module through the FlexRay
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