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Home >> Buick >> 2006 >> Lucerne CXS >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - 4.6L - DTC P0403 To DTC P1381 >> DTC P0418 >> Repair Verification

Repair Verification

Ignition ON and the engine OFF, enable and disable the AIR pump relay with a scan tool while listening for the AIR pump relay and AIR pump to operate.

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