12/26/2023 0 Comments 4l60e transmission line diagram![]() ![]() In Other Functions – Lockup control – Lockup table. in Other Functions – Automatic Transmission Control – Gear change line pressure compensation.Ī momentary reduction of line pressure at the gear change, making even smoother gear changing.To reduce the pressure and maintain a smooth operation of your transmission system you should add more duty cycle on the solenoids, as showed: 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.In Other Functions – Automatic Transmission Control – Line pressure by temperature compensation.Line pressure by temperature compensation: To reduce line pressure, you should increase the percentage of duty cycle on the solenoid.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.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.This table is to adjust the Line pressure for smooth gear shifting and stable engine idle.In Other Functions – Automatic Transmission Control – Gear line pressure table.The speed for upshift will always be higher than downshift, at least 2 miles/hour apart to avoid constantly gear shifting. ![]() Do not set the same speed for upshift and downshift for the same TPS position.The values of the picture below are just a suggestion to start, do your own research and tell the ECU when to shift gears.In Other Functions – Automatic Transmission Control – Gear change table.In Other Functions – Automatic Transmission Control – Gear change trigger table. Gear change trigger table uses the same values for Upshift and Downshift: In Other Functions – Automatic Transmission Control - Solenoids.User preferences for transmission control settings.In Other Functions – Automatic Transmission Control.When using the 4L60E/4L65E transmission VSS, set 40 teeth and select your differential ratio and tire size info.In Sensors and Calibration – Drive shaft RPM.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.The settings for the input from the lever position should be as below: In Sensors and Calibration – AT range selector. Detection type: “By Automatic transmission Control”.Īutomatic Transmission Range Selector (lever position):.Information about the differential and gearbox for Gear Detection.In Sensors and Calibration – Gear change detection.For Lockup solenoid and Line Pressure solenoid select Yellow Outputs.Select according with your available outputs.Select outputs for the Transmission Solenoids (A, B and C), Blue or Gray outputs can be used. ![]()
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