Chrysler PT Cruiser Service & Repair Manual page 1683

PT
SHIFT INTERLOCK SYSTEM (Continued)
(3) Remove shifter bezel (Fig. 293).
Fig. 293 Shifter Bezel Removal/Installation
1 - BEZEL
2 - SCREW (4)
(4) Adjust interlock cable/system as follows:
Pry up on cable adjuster lock to release and allow
cable to "self-adjust". Lock cable adjustment by press-
ing down on the adjuster lock until bottomed at the
cable housing.
(5) Verify correct system operation. Refer to verifi-
cation procedure.
(6) Install shifter bezel (Fig. 293).
(7) Install center console assembly (Fig. 292).
(8) Install gearshift knob and tighten set screw to
2 N·m (17 in. lbs.) torque (Fig. 291).
SOLENOID/PRESSURE
SWITCH ASSY
DESCRIPTION
The Solenoid/Pressure Switch Assembly (Fig. 294)
is external to the transaxle and mounted to the
transaxle case. The assembly consists of four sole-
noids that control hydraulic pressure to the LR/CC,
2/4, OD, and UD friction elements. The reverse
clutch is controlled by line pressure from the manual
valve in the valve body. The solenoids are contained
within the Solenoid/Pressure Switch Assembly, and
can only be serviced by replacing the assembly.
The solenoid assembly also contains pressure
switches that monitor and send hydraulic circuit
information to the PCM/TCM. Likewise, the pressure
switches can only be service by replacing the assem-
bly.
41TE AUTOMATIC TRANSAXLE
Fig. 294 Solenoid/Pressure Switch Assembly
1 - SOLENOID AND PRESSURE SWITCH ASSEMBLY
OPERATION
SOLENOIDS
The solenoids receive electrical power from the
Transmission Control Relay through a single wire.
The PCM/TCM energizes or operates the solenoids
individually by grounding the return wire of the sole-
noid needed. When a solenoid is energized, the sole-
noid valve shifts, and a fluid passage is opened or
closed (vented or applied), depending on its default
operating state. The result is an apply or release of a
frictional element.
The 2/4 and UD solenoids are normally applied,
which by design allow fluid to pass through in their
relaxed or "off" state. This allows transaxle limp-in
(P,R,N,2) in the event of an electrical failure.
The continuity of the solenoids and circuits are
periodically tested. Each solenoid is turned on or off
depending on its current state. An inductive spike
should be detected by the PCM/TCM during this test.
It no spike is detected, the circuit is tested again to
verify the failure. In addition to the periodic testing,
the solenoid circuits are tested if a speed ratio or
pressure switch error occurs.
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