Instruction Manual

7
About 1996, before the United States unied the OBD II standard and during the transition period, di󰀨erent
automobile manufacturers had di󰀨erent diagnostic port for OBD I. Such as three PIN like HONDA; 17 PIN
like Toyota; 38 PIN like BENZ. At present, all overseas comprehensive diagnostic device are equipped with
10 OBD I diagnostic connectors, as shown in the table below:
1 PC
1 PC1 PC
1 PC
BZ-38
TA-22TA-17
CR-6
1 PC
G/V-12
1 PC
B-20
OBD I Diagnostic Port on the Packing List
Diagnostic Connector for BMW 20
B. How to connect OBD I Diagnostic Port
The OBD I connector, which was set up to cater for older models of various car brands, has very few
current applications as most older cars have been phased out. Cars that produced after 2005 are basically
all OBD II connector. In USA, we still occasionally come across vintage or modied cars that still use OBD I.
For this reason, a transfer from OBD II to OBD I is required.