The general descriptions (below) provide an overview of the OBD system used on Ford, Lincoln and Mercury vehicles since 1996.

To find the specific items listed here, you will need a Workshop Manual subscription which contains the PC/ED Manual.

Look in Section 1 of the PC/ED Manual to find:	Description and operation of the OBD monitors including parameters being monitored, malfunction thresholds, enable criteria, execution frequency and duration for each monitor OBD parameters that deviate from the typical parameters Systems, components, or parts causing indicator light to illuminate Interpreting "mode 6" data Information to identify and diagnose other systems or components Multiplex interactivity information
Look in Section 4 of the PC/ED Manual to find:	OEM-specific DTCs (i.e., P1XXX codes) Diagnostic Trouble Codes relating to the monitor
Look in Section 5 of the PC/ED Manual to find:	Trouble shooting guides or trouble shooting information

OBD-II System Summary for Ford/Lincoln/Mercury
	OBD System Operation Summary - Model Year 2010
	OBD System Operation Summary for Hybrid Electric Vehicles(HEV) - Model Year 2010
	OBD System Operation Summary for 6.0L Diesel - Model Year 2009
	OBD System Operation Summary - Model Year 2009
	OBD System Operation Summary for 6.4L Diesel - Model Year 2009
	OBD System Operation Summary for Hybrid Electric Vehicles(HEV) - Model Year 2009
	OBD System Operation Summary for Hybrid Electric Vehicles(HEV) - Model Year 2008 (990KB)
	OBD System Operation Summary - Model Year 2008 (1202KB)
	OBD System Operation Summary for 6.0L Diesel - Model Year 2008 (333KB)
	OBD System Operation Summary for 6.4L Diesel - Model Year 2008 (433KB)
	OBD System Operation Summary for Hybrid Electric Vehicles(HEV) - Model Year 2007 (1062KB)
	OBD System Operation Summary - Model Year 2007 (1284KB)
	OBD System Operation Summary for 6.0L Diesel - Model Year 2007 (387KB)
	OBD System Operation Summary for Hybrid Electric Vehicles(HEV) - Model Year 2006 (874KB)
	OBD System Operation Summary - Model Year 2006 (1251KB)
	OBD System Operation Summary for 6.0L Diesel - Model Year 2006 (465KB)
	OBD System Operation Summary for Hybrid Electric Vehicles(HEV) - Model Year 2005 (1138KB)
	OBD System Operation Summary - Model Year 2005 (1186KB)
	OBD System Operation Summary for 6.0L Diesel - Model Year 2005 (465KB)
	OBD System Operation Summary - Model Year 2004 (648KB)
	OBD System Operation Summary for 6.0L Diesel - Model Year 2004 (463KB)
	OBD System Operation Summary for 7.3L Diesel - Model Year 2003 (275KB)
	OBD System Operation Summary for 6.0L Diesel - Model Year 2003 (446KB)
	OBD System Operation Summary - Model Year 2003 (640KB)
	OBD System Operation Summary for 7.3L Diesel - Model Year 2002 (874KB)
	OBD System Operation Summary - Model Year 2002 (311KB)
	OBD System Operation Summary for 7.3L Diesel - Model Year 2001 (845KB)
	OBD System Operation Summary - Model Year 2001 (296KB)
	OBD System Operation Summary for 7.3L Diesel - Model Year 2000 (839KB)
	OBD System Operation Summary - Model Year 2000 (272KB)
	OBD System Operation Summary for 7.3L Diesel - Model Year 1999 (827KB)
	OBD System Operation Summary - Model Year 1999 (246KB)
	OBD System Operation Summary for 7.3L Diesel - Model Year 1998 (777KB)
	OBD System Operation Summary - Model Year 1998 (227KB)
	OBD System Operation Summary for 7.3L Diesel - Model Year 1997 (174KB)
	OBD System Operation Summary - Model Year 1997 (226KB)
	OBD System Operation Summary - Model Year 1996 (220KB)
Villager Diagnostic Description
	Model Year 2002 (1410KB)
	Model Year 2001 (1410KB)
	Model Year 2000 (1679KB)
	Model Year 1999 (1760KB)
	Model Year 1998 (2156KB)
	Model Year 1997 (1749KB)
	Model Year 1996 (2299KB)

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