QDM 4 Error
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Certified GM nut
Joined: Oct 2005
Posts: 1,942
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From: Western New York
What'* the number of the code?
Quad drivers are basically mini relays built into the PCM/ECM. Each driver controls up to four devices. Either one of the devices is drawing too much current or the PCM/ECM is bad. Give us the code.
Quad drivers are basically mini relays built into the PCM/ECM. Each driver controls up to four devices. Either one of the devices is drawing too much current or the PCM/ECM is bad. Give us the code.
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Senior Member
Posts like a 4 Banger
Joined: Mar 2007
Posts: 149
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From: portland
Qdm 4 error 670
The code for that error is 670. It is the 4th code in a group of 4. The other three being 561, 562, and 563. All of the latter 3 mention the Cruise control system as error location. The CC servo has been removed A because it needs rebuilding. I dont know if the 670 code is related to the cc or not. Thanks for asking Ted and for the bump J.
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MileHighSSEi
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