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Home >> Isuzu >> 2003 >> Axiom Base, 4WD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P1650: Quad Driver Module "A" Fault >> Circuit Description

Circuit Description

Quad Driver Modules (QDM) are used by PCM to turn ON current-driven devices that are needed to control 2 engine functions. PCM monitors open or short circuits of either Canister Control Purge (CCP) vent solenoid or Variable Intake Manifold (VIM).

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