MSD 89973 Installation Instructions Manual
®
MSD Race Ignition
Test Tool PN 89973
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Parts Included:
1- Module
FEATURES
The MSD Race Ignition Test Tool, PN 89973,
(Test Tool) is designed for use by racing
sanctioning bodies. This tools can be attached to
the the MSD CAN bus or the Diagnostic
Connector to validate the connected units or their
settings. The readings on the screen allow the
sanctioning bodies to verify compliance with the
rules. The Test Tool provides the sanctioning
bodies the ability to set their own regulated
parameters from within the MSD controller. The
Test Tool will function with MSD products that
were designed to operate with it, such as the
6014CT. This tool is also backwards compatible
with the 7730 Power Grid System.
Note: For use with the 7730 Power Grid
System skip to section “OPERATION WITH
THE 7730 POWER GRID”
Figure 1 PN89973
OPERATION
A Master unit is a designated unit the Test Tool uses to validate other units are in compliance.
Any MSD unit with a “REGULATED” tab on the MSD View screen can become a Master unit.
Before using the Test Tool PN 89973 to validate compliance, it must be paired with the “Master”
unit. The designated Master unit should be programmed with the regulated parameter values
and their appropriate checkboxes selected in the REGULATED tab. Next, connect the Tech tool
to the Diagnostic Connector and follow the steps to replace the Master unit. At this point, the
unit is ready to check compliance when connected to any other MSD controller.
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IN S TAL L ATI O N IN S T RU C T IO N S2
To check compliance, connect the MSD Tech Tool to a unit and observe the reading on
the screen. The screen will indicate whether the connected unit is a match or a mismatch
to the master unit.
An example of a Match indication on the display (Figure 1):
Background is Green
Top line: “V MATCH V”
Second line: Part Number and software version
Third line: Serial Number
Actual readings from the unit are displayed
Figure 2 Display Match Screen
An example of Mismatch indication on the display (Figure 2):
Background is Red
Top of the screen shows “XX MISMATCH XX”
Actual readings from the unit are displayed
Figure 3 Display Mismatch Screen
Note: For the Test Tool to operate the ignition power must be ON.
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