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The quad driver is basically a transistor that acts as a switch to connect or disconnect the fuel injectors or ignition coil to ground. It's inside the main computer. If yours is bad, find the cause of the problem before you replace the computer, or the new one will fail too. Usually shorts out due to a bad injector.
Rick
I'm a retired ASE Master/L-1 Technician. I still keep current with the latest automotive technology. V
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Your 1992 Buick Century has a DTC 26 code how can you find out what this is?
A DTC #26 is a Quad Driver Module Malfunction.
Where is the quad driver module on a 1989 Buick 3800?
If a quad driver has gone bad it is necessary to replace the ECM. After replacing the ECM, drive the car on a bumpy road and note whether the check engine light comes on. If it does, fix the problem or you end up with a repeat QDM failure. == == == == There is no such thing as a quad driver module. There are quad DRIVERS in the ecm.
How can i fix the quad driver module on a buick park avenue 1993?
the quad driver module is a component of the ECM. you must replace ECM.
What is a diagnostic code 26 for a 1993 buick century?
Quad-Drive module or QUAD-DRIVE No.1 error
Where is the Qaud Driver module located on a 1991 Buick Century Custom?
Quad drivers are small chips that perform on off functions inside the Engine Control Module. If you have a code which states there is a Quad Drivers Error, you need to check the items that that particular Quad Driver is controlling. For example, the a/c compressor relay, or trans solenoids etc...
Where is the ECM and quad driver modules on a 1991 3 3L Buick century?
Relays are right behind the left side headlights - under the hood. I am looking for answer on nthe ECM myself...
Where is the Quad Driver Module on a 1993 buick lesabre?
the quad driver module is part of your computer, it controls certain parts like your emission system and fuel system that sort of stuff.
How do you replace driver side window on a 1989 dodge quad cab?
i didnt know dodge made Dakota quad cabs in 89
Why does your 1993 buick skylark 3.3 V6 run great for about 10-15 minutes and then sputter and die?
Quad driver module? Or your PCM is out.
I got a 1991 Oldsmobile Calais with a quad 4 and 5 speed manual transmission is it possible to take a 1986 Buick century 3800 and mount it to the 1991 quad 4 manual transmission?
Will not bolt up and is not strong enough for the 3800.
1994 Pontiac transport has a quad driver module failure how can this be corrected?
Look at your error codes again. It should read something like "quad driver module FAULT" not failure. It is VERY unlikely that your quad driver actually died. It is the high power control system that is in your computer. So replacing it, means replace the computer. To prevent this the Quad Driver has all sorts of internal protection hardware in its design. The likely thing that is wrong is something the Quad Driver is connected to. And that The quad driver isn't seeing every thing correctly so thus the Fault. It also can fault if there is a wiring problem from the device to the quad driver. There are Test for each component. You should to to find out which is the problem. Consult your Shop Manual.
Where is the quad driver on a 1992 Buick Regal?
On the circuit board inside the PCM. You have to replace the entire PCM. You can buy rebuilt units. And quad drivers don't go out on their own. They usually get burned out by a bad fuel injector, etc. If you don't fix the root cause, you'll be replacing the PCM again.
