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Defender 110
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Repair and Diagnosis (Single Page)
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Common Specs & Procedures
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Diagnostic Trouble Code Index DTC: Headlamp Control Module (HCM) -- Defender/L663
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Diagnostic Trouble Code Index - DTC: Headlamp Control Module (HCM) (G2423982)
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Description And Operation
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Headlamp Control Module (HCM)
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DTC U201A-51: Control Module Main Calibration Data - Not programed
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Possible Causes
July 1:
So it begins
. Don't worry, this is not in the correct legal jurisdiction!
Possible Causes
Headlamp control module is not configured correctly