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Home >> BMW >> 2012 >> X6 50i >> Repair and Diagnosis >> External Pages >> Different car >> Section 1998 (Self Diagnosis - Diagnostic Trouble Codes - DTC P0035 - DTC P0480 (N63 & S63)) >> Diagnostic Trouble Codes (DTCS) MSD85 - Bn2020 >> DTC P300D, BMW Hex Code 0x138901, BMW Code 1280257: Controlled Lower Air Shutter Circuit High >> Monitoring criteria

Monitoring criteria

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The fault is recognized when a short circuit to positive is present during transmission of a control-activation signal to the radiator vent slat solenoid valve.

Potential problem source(s):

-Defect in wiring harness

-Defect in solenoid valve

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