LEMON Manuals: Even more car manuals for everyone
Home >> Chevrolet >> 2008 >> Corvette Base, 2D Convertible, Standard >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 4 (Automatic Transmission - 6L50/6L80/6L90 - DTC P09786 To DTC P2764) >> DTC P0989 or P0990 >> Circuit/System Description

Circuit/System Description

WARNING: This page is about a different variant/trim than selected.

The transmission fluid pressure (TFP) switch 5 is part of the control solenoid (w/body and TCM) valve assembly and has no seviceable parts. The TCM supplies 12 volts to the TFP switch 5 on the TFP switch 5 signal circuit. The TFP switch 5 has an internal case ground. TFP switch 5 is normally closed, Low. When oil pressure is present at the TFP switch 5, the switch is open, high. The normally low clutch pressure control (PC) solenoid 4 controls the transmission fluid to the 1-2-3-4 clutch. The TCM monitors the normally closed TFP switch 5 signal circuit to determine the 1-2-3-4 clutch status.

scientia non olet · About LEMON Manuals