TPA400 Rev0509
23
Figure 7. TPA406/TPA450 Wiring
*Note: For TPA406 Ford 6.0L engines it is
best to pick up the RPM by connecting the
red wire to the Clean Tach Signal (green/
white) wire.
If connecting to the alternator ensure the
signal is not a low level (less than 1.5v) if it
is, the flywheel or magnetic pick-up
connection must be used.
TPA406/TPA450 Wiring
- 12V +
12 vdc from
OK to pump
Battery switch
Battery
12 vdc
Green wire from harness
Orange wire
Brown wire
Black wire
Red wire
Orange wire
Blue wire
White wire
Black = GND
Red = 12 vdc
Fuel Level Gauge
Oil
Pressure
Sensor
Buzzer
Blue wire
AC from
Generator
120 VAC ONLY
Red
Black
12 vdc
*Green wire
*Note: The green wire
is not used on TPA406
single wire sensor.
RPM Sensor
1-Red - Alternator or *Clean Tach signal
2-White - Flywheel or Magnetic pick-up
Aerial Engaged
(For Aerial Hours)
Switch or
Optional Sensor
Generator Engaged
(For Generator Hours)
Coolant
Temperature
Sensor
Note: Do Not Wire 240 vac to
the generator engaged sensor.
This sensor is only needed if
unable to supply a 12 vdc
signal through a switch
Pump Overheat
