Low Side Driver Outputs
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2006 Ford RV Cutaway, 2006 Ford Pickup, 2006 Ford F550 Super Duty, 2006 Ford F450 Super Duty, and 2006 Ford Econoline. However, it is still accessible from the selected car via links, so may be relevant.
The low side driver outputs control the sequencing (firing order) of the engine.
NOTE:
Inspect the FICM harness for damage, chafing and correct routing within the engine compartment and around engine components.
CAUTION:
Do not pierce engine electrical wires or damage to the harness can occur.