GM > Transmission > Torque Management

Trans Torque Management
These values define the torque management parameters used by the PCM to reduce engine power (spark retard) to protect the transmission. Note: changing or disabling these values can potentially reduce transmission life and/or damage the transmission.

General

• Diff Score Enable This switch enables or disables differential scoring protection

  
  

• Stall Torque Enable RPM If RPM is above this then stall torque mode is enabled
• Stall Torque Disable RPM If RPM is below this then stall torque mode is disabled

  
  

• TCC Limit Torque Reduction Master Enable Master enable/disable for transmission TCC limit torque reduction calculations
• TCC Limit Torque Reduction Max Torque Maximum TCC Limit Torque. Should be set higher than maximum engine torque when TCC Limit is disabled

Abuse Mode

• Abuse Mode Enable This switch enables or disables trans abuse mode
• Abuse Mode RPM: If Engine RPM is greater than this abuse mode is enabled
• Abuse Mode TPS%: If TSP% is greater than this abuse mode is enabled (if RPM less than above value)
• Abuse Mode Speed: If speed is greater than this, abuse mode is disabled
• Min Input RPM: If Trans Input RPM is less than this abuse mode is disabled

  
  

• Abuse Torque Reduction % vs RPM: Percentage torque reduction applied if abuse mode is enabled versus RPM
• Abuse Mode Duration vs. Trans Temp:

Torque Reduction

• Torque Reduction Master Enable: This switch enables or disables trans torque reduction (including abuse mode etc.) (not available in all calibrations)
• Torque Reduction Enable Upshift: This switch enables or disables trans torque reduction on upshifts. (not available in all calibrations)
• Torque Reduction Enable CT Downshift: This switch enables or disables trans torque reduction on closed throttle downshifts. (not available in all calibrations)
• Torque Reduction Enable Power Downshift: This switch enables or disables trans torque reduction on power downshifts. (not available in all calibrations)
• Torque Reduction Enable Garage Shift: This switch enables or disables trans torque reduction on garage shifts. (not available in all calibrations)
• Shift Torque Reduction Enable: This switch enables or disables trans torque reduction during shifts (not available in all calibrations)
• Torque Reduction vs Torque vs Shift - Normal: This table defined percentage torque reduction during shifts in normal mode
• Torque Reduction vs Torque vs Shift - Performance: This table defined percentage torque reduction during shifts in performance mode
• Torque Reduction vs Torque vs Shift - Downshift: This table defined percentage torque reduction during downshifts
• Trans Max Shift Torque: Maximum shift torque

  
  

• Desired Torque: An offset for the electronic throttle torque limits to increase desired torque in an effort to keep the Automatic trans from slipping under low RPM load.