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Home >> Land Rover >> 2021 >> Defender 110 >> 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 >> Action

DTC U0080-81: Vehicle Communication Bus F - Invalid serial data received: Action

NOTE: Do NOT replace any module's just on the basis of this DTC  .
  1. Using the JLR  approved diagnostic equipment, check other modules for the same DTC  indicating a fault in the wiring harness and/or incompatibility in the software versions.
  2. Refer to the appropriate Wiring Diagrams , for schematic and connector information. and check the FlexRay circuit for short circuit to ground, short circuit to power, open circuit, high resistance. GO to Pinpoint Test F .
  3. Using the JLR  approved diagnostic equipment, check the relevant control module for related DTC  (s) and refer to the relevant DTC  index.
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