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General Code Retrieval Procedures<br />
OBD1 SYSTEMS / OBD2 SYSTEMS<br />
Procedures for Retrieving Diagnostic Trouble Codes from OBD1<br />
systems are vehicle manufacturer specific. Each manufacturer uses<br />
their own procedure.<br />
Procedures for retrieving Diagnostic Trouble Codes from OBD2 systems<br />
are generic, and apply to all vehicles equipped with OBD2 systems.<br />
From the following list, select the procedure that applies to your<br />
vehicle’s OBD system, and proceed to appropriate section for detailed<br />
code retrieval procedures.<br />
OBD1 SYSTEMS<br />
Most cars and light trucks (under 8500 GW) sold in the U.S. from early<br />
1980’s to 1995 are equipped with what is known as the first generation<br />
of On-Board Diagnostics or “OBD1”.<br />
� If your Chrysler/Jeep, Ford, GM or Toyota vehicle, (1995 and older)<br />
is equipped with an ‘OBD1 System”, proceed to the proper section<br />
as indicated below, for a detailed application list and code retrieval<br />
procedures:<br />
� CHRYSLER/JEEP .............................page 68<br />
� FORD................................................. page 74<br />
� GM .....................................................page 97<br />
� TOYOTA ............................................page 103<br />
OBD2 SYSTEMS<br />
ALL 1996 and newer cars and light trucks (under 8500 GW) sold in the<br />
U.S. are equipped with what is known as the second generation of On-<br />
Board Diagnostics or “OBD2”.<br />
� If your vehicle (1996 and newer) is equipped with an “OBD2<br />
System”, proceed to the OBD2 SYSTEMS section on page 20 for a<br />
detailed application list, code retrieval procedures, Monitor status,<br />
and Freeze Frame data information.<br />
20 CanOBD2&1
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