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Home >> Land Rover >> 2021 >> Defender 110 X-Dynamic HSE >> Repair and Diagnosis >> General Information >> Specifications Index >> Diagnostic Trouble Code Index DTC: TELEMATIC Control Unit Module (TCU) -- Defender/L663 >> Diagnostic Trouble Code Index - DTC: TELEMATIC Control Unit Module (TCU) (G2400918) >> Description And Operation >> TELEMATIC Control Unit Module (TCU) >> DTC B117A-01: Backup Microphone - General electrical failure >> Possible Causes
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Possible Causes

NOTE: Circuit reference - Circuit reference - MIC IN-/MIC IN+/SCR
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