Automatic Transmission Range Selector (lever position):
In Sensors and Calibration – AT range selector.
The settings for the input from the lever position should be as below:
The 4L60E/4L65E transmission sends to the ECU the same signal for Park and Neutral, so it’s the user's choice to select N or P instead.
Drive shaft RPM:
In Sensors and Calibration – Drive shaft RPM.
When using the 4L60E/4L65E transmission VSS, set 40 teeth and select your differential ratio and tire size info. Wheel speed sensor can be used instead.
Automatic Transmission Control:
In Other Functions – Automatic Transmission Control.
User preferences for transmission control settings.
In Other Functions – Automatic Transmission Control - Solenoids.
Solenoid A and B: 75Hz.
Solenoid C: 50Hz and 0.2 seconds.
Line pressure solenoid: 293Hz.
Gear change trigger table uses the same values for Upshift and Downshift:
In Other Functions – Automatic Transmission Control – Gear change trigger table.
Gear Change Table:
In Other Functions – Automatic Transmission Control – Gear change table.
The values of the picture below are just a suggestion to start, do your own research and tell the ECU when to shift gears.
Do not set the same speed for upshift and downshift for the same TPS position.
The speed for upshift will always be higher than downshift, at least 2 miles/hour apart to avoid constantly gear shifting.
Gearbox Line Pressure Table:
In Other Functions – Automatic Transmission Control – Gear line pressure table.
This table is to adjust the Line pressure for smooth gear shifting and stable engine idle.
Since the line pressure directly affects the torque converter, the adjustment is needed for a smooth run and will depend on the torque converter installed.
Line pressure solenoids reduce the line pressure when activated, as so, if not using the output for controlling it, your 4L60E/4L65E will apply full line pressure at all time.
To reduce line pressure, you should increase the percentage of duty cycle on the solenoid. Values below are suggestive.
Line pressure by temperature compensation:
In Other Functions – Automatic Transmission Control – Line pressure by temperature compensation.
ATF’s density and viscosity drastically changes with temperature, that’s one of the reasons why using transmission temperature sensor is important to guarantee smooth operation. To reduce the pressure and maintain a smooth operation of your transmission system you should add more duty cycle on the solenoids, as showed:
Gear change line pressure:
in Other Functions – Automatic Transmission Control – Gear change line pressure compensation.
A momentary reduction of line pressure at the gear change, making even smoother gear changing. Suggestive values below.
In Other Functions – Lockup control.
PWM frequency can remain “0 Hz”.
In Other Functions – Lockup control – Lockup table.
The Lockup Table should follow the same logic as the gear changing table, Lock-up speeds should be higher than Unlock speeds 2mph apart to avoid constantly locking and unlocking converter.