1995 Oldsmobile Achieva Repair Question
Topics covered: Engine, Ignition coil, Coil pack.
Mileage: 68,000 miles.
Mileage: 68,000 miles.
Asked on July 4, 2012
What's a Quad Driver Module?
I recently had the engines malfunction light to illuminate; i took it to an autoparts store and had it diagnosed. the code said DTC 27 and DTC 28. when i looked inside of the repair manual it was described as Quad Driver module 1& 2 but i dont know what it's pointing to.
Help me too understand the code: please!
Help me too understand the code: please!
Asked by creator and judgeAnswer
Replied on July 4, 2012
That's the high-current transistorized switching circuits that drive the ignition coils or injectors. Typically those are inside the Engine Computer but on some GM ignition coil packs they are built into that.