Conditions for Running the DTC

WARNING: This page is about a different car, the 2004 Pontiac Grand Prix. However, it is still accessible from the selected car via links, so may be relevant.

No VSS DTC P0502 or P0503.
No AT ISS sensor DTC P0716 or P0717.
No TCC system stuck ON DTC P0742.
No 1-2 SS valve electrical DTC P0753.
No 2-3 SS valve electrical DTC P0758.
No TCC PWM solenoid valve DTC P1860.
The TP angle is greater than 10%.
The transmission fluid temperature is 20-130°C (68-266°F).
The engine torque is 27-270 N.m (20-200 lb ft).
The transmission ISS is greater than 150 RPM.
The transmission OSS is greater than 300 RPM.
The time since the last gear range change is greater than 1 second.