Haltech E6M - Manual (Page 100)

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Figure 16.7. Example circuit for an Intercooler Fan.
16.8 Shift Light Illumination (SL)
The E6H/E6M can be used to activate a shift light or a piezo buzzer when engine speed
exceeds the programmed activation speed.
To use the shift light function, you will need the following:
A dashboard lamp or buzzer;
E6H/E6M programming software and cable.
The lamp or buzzer should be wired to +12V on one side, and the other to the ECU. The lamp
used must not draw more than 0.5 amp of current (i.e. a 6 Watt globe). Alternatively, a high
intensity LED may be used. If so, use a series resistor of 330 ohms to limit the current through
the LED to around 40mA.
Once the wiring has been installed, run the E6H/E6M programming software and go to the
Options page. Select the Shift Light function on the appropriate output and set the value as
desired.
16.9 Auxiliary Fuel Pump (AP)
Running two fuels pumps continuously, or else a single very large flow-rate pump (if one is
available) means excessive noise and heating of the fuel. A street vehicle with very high
potential output will not need a large fuel supply at all times. The second pump would only be
activated when load demands require that the extra flow be available.
Note: The extra fuel pump cannot be driven directly by the ECU. The ECU can
be made to drive a relay to power the pump.
To use the Auxiliary Fuel Pump function, you must have the following:
A properly plumbed fuel pump, wired through a relay;
E6H/E6M programming software and cable.