Service manual

6-46 Engine Controls – 6.6L (LBZ) Engine
2006 LSSV Service Manual Supplement
Description and Operation
Engine Control Module (ECM)
Description
The Enhanced Mobility Package (EMP) Engine Control
Module (ECM) processes the various input information.
The ECM sends the necessary electrical responses to
control fuel delivery and other systems.
The input information has an interrelation to more than
one output. The option code EMP (RPO EM7) uses
tires that have been changed from the original
equipment size to those adapted to off-road usage. The
ECM must be reprogrammed using the Enhanced
Mobility Package (EMP) Engine Control Module (ECM)
Calibration Chart.