2001
Chevrolet Corvette Restoration Kit
• Forward sprag clutch assembly
•
Lo
and reverse roller clutch assembly
•
Lo
and reverse clutch assembly
•
Two planetary gear sets: Input and Reaction
• Oil pump assembly
• Control valve
body assembly
The electrical components
of
the 4L60-E are as follows:
•
1-2 and 2-3 shift solenoid valves
•
3-2 shift solenoid valve assembly
•
Transmission pressure control (PC) solenoid
•
Torque converter clutch (TCC) solenoid valve
•
TCC pulse width modulation (PWM) solenoid valve
•
Automatic transmission fluid pressure (TFP) manual valve position switch
• Automatic transmission fluid temperature (TFT) sensor
• Vehicle speed sensor assembly
Adapt Function
Transmission Adapt Function
The 4L60-E transmission uses a
line pressure control system, which has the ability to continuously adapt
the system's
line pressure. This compensates for normal wear
of
the following parts:
• The clutch fiber plates
•
The seals
•
The springs
The
PCM maintains the Upshift Adapt parameters for the transmission The PCM monitors the AT ISS
sensor and the AT OSS during commanded shifts
in
order to determine if a shift is occurring too fast or
too
slow. The PCM adjusts the signal from the transmission pressure control solenoid
in
order to maintain
a set shift
feel.
Transmission adapts must
be
reset whenever the transmission
is
overhauled or replaced.
Automatic Transmission Shift Lock Control Description
The automatic transmission shift lock control
is
a safety device that prevents an inadvertent shift out of
PARK when the ignition
is
ON. The driver must press the brake pedal before moving the shift lever out
of
the PARK position. The system consist
of
the following components:
• The automatic transmission shift lock control solenoid.
•
The automatic transmission shift lock control switch.
• The park/neutral position switch.
With the ignition
in
the
ON
position battery positive voltage
is
supplied to the park/neutral position switch.
With the transmission
in
the PARK position the contacts
in
the park/neutral position switch are closed.
This
allows current to flow through the switch to the automatic transmission shift lock control switch. The
circuit continues through the normally-closed switch to the automatic transmission shift
lock control
solenoid.
The automatic transmssion shift lock control soleniod is permanently grounded. This energizes
the automatic transmission shift
lock control solenoid, locking the shift linkage
in
the PARK position.
When the driver presses the brake
pedal the contacts
in
the automatic transmission shift lock control
switch open, causing the automatic transmission shift lock control solenoid to release. This allows the
shift
lever to move from the PARK position.
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