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Diagnostic Trouble Code: B0012
Diagnostic Trouble Code Name: Driver Frontal Deployment Loop Stage 1
Vehicle Make: Chevrolet
Vehicle Model: Lumina (VE)
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:
3-2 Shift Solenoid (SS) Control Circuit Low Voltage
Possible Sensor Faults
TCM
Possible Related Diagnostic Trouble Codes
DTCP0787
Circuit / System Description
The 3-2 shift solenoid (SS) valve is a normally-closed, 3-port, on/off device that controls the 3-2 downshift. The solenoid attaches to the control valve body within the transmission. The solenoid receives ignition voltage through the ignition?1 circuit. The transmission control module (TCM) controls the solenoid by providing a ground path on the 3-2 shift solenoid valve control circuit. During a 3-2 downshift, the 2-4 band applies as the 3-4 clutch releases. The TCM varies the timing between the 3-4 clutch release and the 2-4 band apply depending on the vehicle speed and the throttle position.
When the TCM detects a continuous open, short to ground or short to voltage in the 3-2?SS valve circuit, then DTC?P0787 sets. DTC?P0787 is a type?A?DTC.
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