Question about Oldsmobile Cutlass Ciera
...the ECM - engine computer ! Here is a description from Saturn service info . A quad driver module (QDM) is an electronic switch which completes a ground circuit when switching ON. The QDM ...
...the mechanic when the light was on, they put on the scanner and the following codes appeared: 670 QDM 4 failure 650 QDM 2 failure 640 QDM 1 failure Please tell me : 1) if I need to have a part ...
what does code 26 mean on dash of 2009 holden cruze GM OBD Trouble Code 26 Quad Driver Module (QDM A) Error The ECM uses "quad drivers" to control its output devices. Each quad driver is capable of ...
qdm 26 cooling fans come on and stay on and voltage drops QDM stands for Quad Driver Module.The QDM is located inside the PCM (Powertrain Control Module),or the vehicle's computer.Think of a circuit ...
Question about Oldsmobile Cutlass Ciera
...me about tps sensor i went to the shop and they told me 2 things popped up on diagnostics: p1650 qdm 2 failer p0122 tps sensor what are these problems? and how much to fix? TPS is Throttle
QDM B High I wanted to thank everbody that helped me out with information. i have a GM Tech tool and was able to use to find the problem for DTCfault code 27. even though the purge solenoid was new it
...the mechanic when the light was on, they put on the scanner and the following codes appeared: 670 QDM 4 failure 650 QDM 2 failure 640 QDM 1 failure Please tell me : 1) if I need to have a part ...
...The quad driver controls up to 4 circuits. There are multiple quad drivers in the ECM. The QDM shuts down a shorted circuit to prevent high current flow from damaging the ECM. So the DTC 26 ...
Question about Oldsmobile Cutlass Ciera
...(26, and 27) that list the same error, and what exactly do these mean. DTC 26 and 27 refers to a QDM (Quad Driver Module) fault.The Quad Driver is a "safety valve" for the ECM controlled circuits, ...
788 questions posted
Usually answered in minutes!
575 Questions
492 Questions
476 Questions
412 Questions
332 Questions
