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Home >> Buick >> 1994 >> Park Avenue V6-231 3.8L VIN L SFI >> Repair and Diagnosis >> Relays and Modules >> Relays and Modules - Powertrain Management >> Relays and Modules - Computers and Control Systems >> Engine Control Module >> Locations >> Component Locations >> Quad Driver Module

Quad Driver Module

The Quad Driver Modules (QDM's) are hard wired inside the PCM.

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