Professional Enhanced Scan Tool User's Manual

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Getting Started
2
EEC-IV/MCU
The EEC-IV/MCU DLC is a large six-sided connector with a pigtail connector.
The pigtail connector is not used on MCU vehicles – leave the pigtail
unattached. The EEC-IV/MCU cable adapter is included with the scan tool.
MECS
MECS vehicles (1988 –1995) use either a 6-pin (with pigtail) or a 17-pin DLC.
Use the MECS 6-pin adapter cable kit (P/N 9603) for both configurations. The
MECS adapter cable kit includes jumper wires to connect to the MECS 17-pin
DLC. The MECS adapter cable kit is not included with this tool. It is available
through your dealer. Use the following diagrams to connect the adapter cable.
6-Pin MECS
Vehicle DLC
EEC-IV/MCU
Cable Adapter
EEC-IV/MCU
STI Pigtail
EEC-IV only
To Scan
Tool
STI Pigtail
4
5
6
1
2
3
To Scan
Tool
6-Pin MECS
Clip to good
Vehicle ground
Cable Adapter Vehicle DLC
6-Pin MECS
Pigtail
P/N 9603