Question about 1994 Chevrolet Corsica
I keep gettinga DTC Fault Code 27, when this code kicks and the check engine light comes on the fan also comes on. i have a new egine and Trans. all of the sensors have been rep aced except for the Crank shaft senor and the Knock sensor. i can not find what is causing this code. i have also replaced the TCC when the trans was rebuilt. can anybody help.
This is a quad driver fault. something that the computer is trying to switch on or off has been left unplugged after all your work. I would look for a solenoid , valve, or transmission connector that is not hooked up or loose.
Posted on Mar 12, 2009
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Dec 01, 2015 | Cars & Trucks
MIL (SERVICE ENGINE SOON) telltale circuit
Upshift lamp circuit
Cooling fan relay circuit
A/C relay circuit
Fault detected for 5 seconds for DTC P1651. Fault detected for 20 seconds for DTC P1650.
Important: The QDM circuit is continuously checked when the engine is running.
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