AEM 30-6905 Universal Programmable EMS-4 - Manual (Page 207)

Page 207 of 279 EMS-4 Install and Tuning Guide_Rev 1.6
Switch 7 is a user created switch analog input channel. Once all conditions have been met, it
activates an internal channel that is broadcast in the EMS and can be used as activation trigger
for any logic that can take a manual/electrical switch input as an activating condition.
Switch 7 Analog In – The input pin assigned to the Switch 7 Function
Switch 7 On Above - Voltage threshold above which the switch 7 function is ON.
Switch 7 On Below – Voltage threshold below which the switch 7 function is ON.
Switch 7 Min RPM
– RPM threshold above which the switch 7 function is ON.
Switch 7 Min TPS – TPS threshold above which the switch 7 function is ON.
The settings in the example above will cause the Switch 7 function to turn on when:

The GPIO5 voltage is either above 5.08 volts (unattainable condition) or below 3.51 volts
and:

The engine speed is above 500 RPM and:

The throttle position is above 50%
In this theoretical example, 3.51 volts represents the safe minimum voltage for the fuel pressure
sensor input on GPIO5.
Alt Function Setup Options