Operation CHARM
: Car repair manuals for everyone.
Home
>>
Buick
>>
1993
>>
Skylark V6-204 3.3L VIN N FI
>>
Repair and Diagnosis
>>
Powertrain Management
>>
Computers and Control Systems
>>
Engine Control Module
>>
Locations
>>
Quad Driver Module
Quad Driver Module
The Quad Driver Modules
(QDM's)
are hard wired inside the ECM.