Chrysler 2005 Crossfire SRT6 Service Manual page 3285

AUTOMATIC - NAG1 SERVICE INFORMATION 21 - 215
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First Gear Engaged
The TCM monitors the activation sequence via the speed of the input shaft, which slows down as the frictional
connection in the multiple-disc holding clutch increases. When the speed drops to the specified level, the TCM shuts
off the power to the 3-4 shift solenoid (10). The spring chamber of the shift valve B2 (9) is depressurized and
switches downwards. This connects the line to the opposing face of the piston B2 (6) with the pressure holding
valve (11). The pressure on the opposing face of the piston B2 (6) drops to a residual pressure.
The working pressure (p-A) is formed and travels via the 2-3 holding pressure shift valve, the 2-3 command valve
and the ball valve (16) to driving clutch K3 (4) and via the 3-4 command valve (13) to the end face of the 3-4 shift
pressure shift valve (14). The 3-4 shift pressure shift valve (14) is moved against the force of the spring towards the
right. At the same time the 3-4 solenoid valve (10) is energized. This allows shift valve pressure (p-SV) to enter the
spring chamber of the shift valve B2 (9) and to reach the end face of the 3-4 command valve (13). The shift valve
B2 (9) is held in the upper position and the 3-4 command valve (13) switches towards the right. At the end face of
the 3-4 shift pressure shift valve (14) the working pressure (p-A) is replaced by shift valve pressure (p-SV).
The 3-4 command valve (13) moves to the left. Working pressure (p-A) travels via the holding pressure shift valve
(12) and the 3-4 command valve (13) to the piston of multi-disc holding clutch B2 (5).