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Diagnostic Trouble Code: 025
Diagnostic Trouble Code Name: Driver Window Up Switch Circuit
Vehicle Make: Chevrolet
Vehicle Model: Tosca (V250)
Diagnostic Code Entered By: ZerOne
Diagnostic Code Entered On: Wed Oct 06, 2010 11:00 pm
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Please Note: The DTC Information provided has been randomly generated.
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Diagnostic Trouble Code Description:
Clutch Pressure Control Solenoid 2 -- Stuck Off
Possible Sensor Faults
TCM
Possible Related Diagnostic Trouble Codes
DTC P0776 or P0777
Circuit / System Description
The clutch pressure control (PC) solenoid?2 is part of the control solenoid (w/body and TCM) valve assembly. The control solenoid (w/body and TCM) valve assembly has no serviceable parts. The PC solenoid?2 is a normally high-pressure control solenoid which provides fluid pressure to the 3-5-R clutch regulator valve which regulates the transmission fluid pressure to the 3-5-R clutch. The TCM controls the solenoid pressure by regulating the exhaust fluid. When the TCM commands the solenoid off, the exhausting fluid is stopped and the 3-5-R pressure is high. When commanded on, the clutch PC solenoid?2 regulates the amount of exhausting transmission fluid. Solenoid power is supplied by the TCM through a high side driver?(HSD). The HSD protects the circuits and components that the TCM powers. Should the circuit overload the driver will shutdown. After the overload is removed the HSD resets. The TCM calculates gear ratio based on data from the automatic transmission input speed sensor?(ISS) and the output speed sensor?(OSS). The TCM compares the known transmission gear ratio to a calculated gear ratio for each commanded gear.
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