Implementation open, for vehicles with 4.2 Liter engine with start of production. The engine should not be running, if the actuation of “A/C Compressor Regulator Valve -N280-” or “A/C clutch -N25-” is being checked on vehicles from model year 2002. With engine running the A/C Control Head -E87- does not actuate these actuators, but starts the output DTM with Fresh Air Blower.
