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Home >> Isuzu >> 2007 >> Ascender RWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System & Fuel System - 4.2L - DTC P0135 To DTC P0420 >> DTC P0412 >> Repair Verification
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Repair Verification

With the ignition ON and the engine OFF, enable and disable the AIR solenoid with a scan tool while observing that the solenoid relay operates.