Mike's Workshop Manuals
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2021
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G80 2.5T Advanced, RWD
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Repair and Diagnosis
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External Pages
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Different variant/trim
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Section 21 (4WD Control System Diagnosis)
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DTC U0121-00: Lost Communication With Anti-Lock Brake System (ABS) Control Module
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DTC Information And Inspection
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DTC Description
DTC Description
WARNING:
This page is about a different variant/trim than selected.
U012100 is set when no IEB signal is entered to 4WD ECU.