K 3500 Truck 4WD V8-6.0L VIN U (2002)
C2 Lean Mode
Following the Reverse Mode step, the Tech 2(R) exits "FastLearn" and the only adaptive cells that remain to be learned are the adaptive volume data for
the C2 clutch. The vehicle must be driven for this procedure to be completed. The requirements for this step require the vehicle be driven long enough
and far enough at a steady throttle at a speed where at least three (3), 31 upshifts occur, on the same ignition cycle. The TCM learns the adaptive learn
for the C2 clutch by overfilling the C2 clutch and then reducing the overfill until C2 is corrected, C2 clutch volume is learned and all special "FastLearn"
actions are completely disabled.
"FastLearn" Procedure
Important:
The following conditions must be met before the "FastLearn" procedure can be performed:
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There should be no current or history DTC's.
^
The Neutral Start Back-up Switch must be operational and properly adjusted.
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All transmission vehicle speed sensors should be connected and functioning properly.
^
The transmission fluid temperature should be between 40°C and 100°C (104°F and 212°F).
^
The transmission line pressure must be within specified values.
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The Transmission Converter Clutch (TCC) slip speed should be less than 100 RPM at idle in park/neutral.
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Block the drive wheels.
^
Apply the park brake.
^
Place the transfer case in "Two Wheel Drive High" (if equipped).
^
Throttle at 0%, engine at warm engine idle speed.
^
Apply Service Brake during the Drive and Reverse Mode.
Important:
The Tech 2(R) software version must be 22.006, released in August 2002, or newer.
1.
Firmly apply the park brake.
2.
Connect the Tech 2(R) to the Vehicle ALDL Connector.
3.
Turn the ignition key ON with the engine off.
4.
Power up the Tech 2(R) by pressing the power key.
5.
Is software version 22.006, or newer displayed on the Tech(2)? If not, you must go get it. If Yes, press the Enter key.
6.
Select FO: Diagnostics.
7.
Select: Model Year.
8.
Select: Lt. Duty Truck.
9.
Select FO: Powertrain.
10.
Select: "The Proper Engine".
11.
Select: "5 speed Automatic".
12.
Select: The proper Emission Level, California or Federal.
13.
Select F2: Special Functions
14.
Select F1: Transmission Output Controls.
