Overview - MerCruiser SCAN TOOL User Manual

Overview

What is the MerCruiser Scan Tool?
The MerCruiser Scan Tool is a multi-purpose diagnostic device that functions
as a scanner and a fuel injector t ester. The scanner supports current
MerCruiser electronic engine control systems and is software ungradable for
future applications.
Figure 1 MerCruiser Scan Tool
In addition to the MerCruiser Scan Tool's diagnostic functions, the tool also
contains a programmable fuel injector tester that is compatible with most
multi-port marine fuel injectors.
The MerCruiser Scan Tool automatically tailors its menu choices and
available functions based upon the type of ECM it detects on the engine. A
flowchart of the basic menu choices is detailed on the Function Flowchart
pages. Some functions and features may vary between similar ECM types.
This variation is due to the way that a particular ECM is programmed at the
factory. Some ECMs may have certain features enabled or disabled which
will cause the MerCruiser scan tool to automatically adjust its menu and data
display choices.
To Begin:
1. Review the Key Functions, Setup and Operation, as well as the Function
Flowchart information.
2. Proceed to the section pertaining to the specific system type being diagnosed.
3. Follow the procedures in that section.
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