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INSTALLATION INSTRUCTIONS
AUTOTRONIC CONTROLS CORPORATION
• 1490 HENRY BRENNAN DR., EL PASO, TEXAS 79936 • (915) 857-5200 • FAX (915) 857-3344
STAGING REV LIMIT (TWO STEP)
The Two Step feature provides the capability of switching between two rpm limits - High and Low.
The limits are set using the Staging Rev Limit and the Max Speed Rev Limit. To activate the Staging
Rev Limit function, connect the Light Blue wire to a momentary switched ground (Figure 6). When the
Light Blue wire is grounded, the low rpm limit is engaged. When the Light Blue wire is not grounded
(open), the high rpm limit is engaged. To adjust the low rpm limit, position S1, S2, S3 and S4 of
Switch 2 to the desired configuration. To adjust the high rpm limit, position S5, S6, S7 and S8 of
Switch 3 to the desired configuration.
PROGRAMMING THE DIS IGNITION
The MSD DIS Ignitions have several programming options to “tune” the ignition to meet specific
engine requirements. Three switch assemblies located on the end panel are for programming the
ignition. The MSD DIS Ignition are programmed at the factory for operation on most 4, 6, and 8-
cylinder engines equipped with a distributorless ignition system. It is recommended to install and run
the DIS Ignition before making any adjustments. The diagram on page 10 shows the switch assemblies
and the factory default settings along with their corresponding adjustment ranges.
THEFT DETERRENT
The MSD DIS Ignition provides the opportunity to easily install a theft deterrent kill switch, Figure 7.
Attach the Brown wire to one side of a single pole throw (On/Off) switch and the remaining side to
ground. When the Brown wire is grounded, the vehicle will crank but not start.
Figure 7 Connecting a Theft Deterrent Switch.
Figure 6 Connecting the Staging Rev Limit.
