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Home >> Isuzu >> 2007 >> Ascender 4WD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System & Fuel System - 4.2L - DTC P0135 To DTC P0420 >> DTC P0412 >> Circuit/System Verification
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Circuit/System Verification

Ignition ON, enable and disable the AIR solenoid with a scan tool while observing that the AIR solenoid relay operates.

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