Technical information

AUTOTRONIC CONTROLS CORPORATION • 1490 HENRY BRENNAN, EL PASO, TEXAS 79936 • [phone] • FAX [phone]
www.msdignition.com email: [e-mail]
109
4 - Pin Connector
Not Used - This wire has 12 volts and must be sealed.
Not Used
This wire is used to connect to the electronic ignition amplifier output or to the
trigger output of the ECU for coil 1.
This wire is used to connect to the electronic ignition amplifier output or to the
trigger output of the ECU for coil 2.
Trigger Pickups
White/Blue
Black
White (Coil 1)
Green ( Coil 2 )
This 2-pin connector plugs into a Cam Sync Sensor to indicate when the number
one cylinder is triggered.
This wire activates the Burnout rev limit when 12 volts are applied.
When 12 volts are applied, this wire activates several features including; Launch
rev limit, Launch Retard value, Launch Timing Curve and will reset the Shift Light
sequence to 1
st
gear & Step 3 slope.
Used to provide a tach signal to rpm sensing devices. 12 volt square wave with 30° duty
cycle.
Accessories
3-Step Rev
Light Blue
Dark Blue
Tach Output
Gray
This wire activates the third retard stage when it is applied to 12 volts. When 12 volts are
removed the retard is deactivated if ramp value = 0. Step 3 retard ramp can be activated
by this wire providing a progressive retard ramp that is programmable from .1 to 9.9
seconds.
Shift Light activation wire. Connects to the Shift Light PN 7552 or to any device
with a 3 amp or less current draw. A 3 amp fuse is in line on the Red/Green wire.
RPM Activation Switch. This wire will supply a ground to complete a circuit at a
desired rpm. It will handle up to 3 amps continuous.
Three Pin Connector - Used for an optional external pressure sensor for turbo or
supercharger applications. (2 - Bar/2-29 psi - PN 23121)
(3 - Bar/2-44 psi - PN 23131).
This wire activates the first retard stage when it is applied to 12 volts. When 12
volts are removed the retard is deactivated.
This wire activates the second retard stage when it is applied to 12 volts. When 12
volts are removed the retard is deactivated.
3-Step Retard
Pink
Violet
Tan
Shift Light/Shifter
2 Pin Connector
Red/Green
Yellow/Orange
RPM Switch
Purple/Blue
Map Sensor
3 Pin Connector
Brown/Violet
Brown/Yellow
Dark Brown
2 - Pin
Connector
Cam Sync