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Home >> Buick >> 2007 >> Allure CXL >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System & Fuel System - 3.8L - DTC P0641 To U0107 >> DTC P0650 >> Circuit/System Verification
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Circuit/System Verification

Turn ON the ignition, then command the MIL ON and OFF with a scan tool. The MIL should turn ON and OFF when commanded.

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