Hombre S Regular Cab 4WD V6-4.3L (1999)
Engine Control Module: Service Precautions
Control Module Service Precautions
IMPORTANT: Do not overload any circuit. The control module is designed to withstand the normal current draws (Amps) that are associated with the
vehicle operations. Do not ground any of the control module circuits unless instructed to do so. Do not apply voltage to any of the control module
circuits, when testing for an open circuit or testing for a short circuit.
NOTE: The VCM must be maintained at a temperature below 85 °C (185 °F) at all times. This is most critical when the vehicle is put through a paint
baking process. The VCM becomes inoperative if its temperature 85 °C (185 °F). It is recommended that temporary insulation be placed around the
VCM or removed from the vehicle during the time the vehicle is in a paint oven or other high temperature process. Do not operate the vehicle if the
insulation is on The VCM.
