What Are These Colored Wires On My Nexus Sensor Module For?

May 7, 2020
  • Yellow = key on power supply.
    *Must stay powered on during cranking of starter. Failure to do so may cause mis-calibration of gauges
  • Red = constant battery power with key on and off
  • Black = common chassis ground
  • *Green = tachometer signal from tachometer output of ignition box or negative side of ignition coil.
    *This connection is option and not required for operation of your Nexus gauges.
  • *Purple = new tachometer output to operate your tachometer.
    *This connection is option and not required for operation of your Nexus gauges.
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