Action Taken By PCM

WARNING: This page is about a different car, the 2002 Buick Regal, 2002 Buick Century, 2001 Buick Regal, and 2001 Buick Century. However, it is still accessible from the selected car via links, so may be relevant.

PCM performs the following if DTC is set:

The PCM illuminates the MIL during the second consecutive trip in which the conditions for setting the DTC are met.
The PCM inhibits TCC.
The PCM inhibits 4th gear if the transaxle is in hot mode.
The PCM freezes shift adapts.
The PCM records the operating conditions when the conditions for setting the DTC are met. The PCM stores this information as freeze frame and failure records.
The PCM stores DTC P1860 in PCM history during the second consecutive trip in which the conditions for setting the DTC are met.