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| Eighty Eight Includes the '97-'98 Regency and '96-'99 LSS Models |
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#1
07-04-2007, 04:30 PM
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Quad Driver Module?
My 94 is throw two codes at me. They are QDM 1 and QDM 4. Just wondering what the hell that means. Any help would be great. k thanks.
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#2
07-06-2007, 02:21 PM
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Re: Quad Driver Module?
These are load drivers in the pcm, they control the egr solenoid, evap solenoid, tcc solenoid and other components, one of these is causing an overload on the quad driver, you will need a diagnostic tree or info to pinpoint the suspect component.
__________________
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#3
07-06-2007, 05:32 PM
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Re: Quad Driver Module?
When I checked that codes the QDM 1 and QDM 4 showed up, also was an EGR code, something about the pintle point possition. I just replaced the EGR valve two or three months ago, too. I'll look into it a little more and let you know what I find. Thanks for the help.
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