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Defender 90
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Diagnostic Trouble Code Index DTC: HVAC Control Module (HVAC) -- Defender/L663
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Diagnostic Trouble Code Index - DTC: HVAC Control Module (HVAC) (G2400894)
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Description And Operation
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HVAC Control Module (HVAC)
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DTC B1B72-12: LIN Bus #1 Power Supply Circuit - Circuit short to battery
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Action
DTC B1B72-12: LIN Bus #1 Power Supply Circuit - Circuit short to battery: Action
Refer to the electrical circuit diagrams and check the LIN component supply circuit for short circuit to power