CAN Bus Torque Corrections

Overview

Torque information transmitted over the CAN bus can be modified using two separate tables: one for Engine Torque and one for Driver Demand Torque.

These tables allow the transmitted torque values to be modified to alter how other vehicle systems respond to the torque information, such as traction control, transmission, and other torque-dependent systems.

This can change the behavior of the Gearshift along with clutch pressure in gear. If there is excessive slip typically the Torque reported should be increased. If the gearshift feel is too sharp and aggressive the Torque reported should be reduced.

The table(s) apply an Nm offset.

Table range is +/- 1000.0 Nm

Example: Gearbox

The above example shows a typical setting.

The increase in Torque reported over the CAN bus will have the effect of sharpening the transmission shifting and clutch lockup.

NOTE: It is important to note that directly programming the TCM through a third party flashing tool is advised over using the ECU to offset the torque reported.