Guys just curious if there are any tables that affect the spark related to the AC such as the Gen III ECMs did in table B4358?
Reason I ask is on a level cruise I noticed a few time where the TQ Spark Red Commanded jumped up considerably for no apparent other reason. Level cruise 75MPh, no changes in engine airflow/throttle/fueling/loads. TCC was locked the entire time in 6th gear as well.

Thanks in advance.
Vehicle is 2011 GMC 2500 HD 6.0/6L90