Conditions For Setting The DTC

WARNING: This page is about a different car, the 2002 GMC Sierra, 2002 GMC Cab & Chassis Sierra, 2002 Chevrolet Silverado, and 2002 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

DTC will set under one of the following conditions:

The transmission is in a forward gear range or Reverse, output speed is greater than 100 RPM, and slip is greater than 100 RPM.
The transmission is in a forward gear range or Reverse, output speed is less than 100 RPM, and input speed is greater than 525 RPM.
Transmission is in Neutral and the converter slip speed is greater than 250 RPM.