Haltech E6M - Manual (Page 97)

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There are two ways in which this feature can be used:
The first application is to have two RPM ranges; one high and one low. In the lower range
the solenoid is disabled and in the upper range the solenoid is enabled. Using this application
the On RPM should be set to the lower RPM limit of the upper range and the Off RPM should
be set to at least 200 RPM below On RPM, forcing hysteresis in the switching to prevent the
solenoid from oscillating.
The second application is to enable the solenoid for a range of RPM and to disable the
solenoid when the RPM falls outside this range. To do this the On RPM is set to the lower
RPM limit of the range and the Off RPM is set at the upper RPM limit, when the RPM is
lower than On RPM the solenoid is disabled, when the RPM is greater than On RPM but less
than Off RPM the solenoid is enabled, when the RPM is greater than On RPM and Off RPM
then the solenoid is disabled.
16.5 Torque Converter Clutch Lockup (TCC)
This function controls the clutch lockup solenoid on automatic transmissions. Locking the
torque converter reduces the amount of energy lost through the transmission, providing better
fuel economy.
The solenoid activates whenever the road speed is greater than a programmed value for a
given throttle position. The solenoid will only activate if the engine temperature is higher than
46°C (118°F), and will be disengaged if the throttle position exceeds 70% or road speed falls
below 64kph. The TCC function also provides for a 4th gear/transmission over-temperature
switch input. This signal indicates that the transmission is hot, and engaged in top gear. When
this is the case, the lockup solenoid is activated regardless of road speed whenever the throttle
is more than 4% opened.
To use the TCC function, you must have the following:
A square wave signal road speed indicator whose frequency is proportional to road
speed; (this may require a unit for signal conditioning, such as the Haltech
TM
RA7)
Access to the wiring of the torque converter lockup solenoid and 4th gear/overtemp
switch;
E6H/E6M programming software and cable.
Wire the TCC solenoid to the appropriate output line on the output connector, and, if it is
available, the 4th gear/overtemp signal to the Aux. In line (the blue flywire on the E6H/E6M
main harness.) The 4th gear/overtemp signal must be a pull-to-ground style signal. If you are
not using this feature, leave the blue flywire disconnected, but insulate the end to ensure sure
that it will not short to the bodywork.
To determine vehicle speed, a square wave signal must be applied to the road speed input
connector. This connector possesses ground and 12 volt signals for powering a Hall effect or
optical sensor. A magnetic or reluctor type signal is incompatible, and you will need to
convert the output from this style of pickup to a square wave. The Haltech
TM
RA7 Reluctor
Adapter would perform satisfactory conditioning.
Once the wiring is complete, run the E6H/E6M software in ONLINE mode and go to the
Identification page. The parameter Road Speed Value must be set with the number of pulses
expected per kilometre. If you are unsure of the exact value for this parameter, enter an
approximate number and check against the vehicle's speedometer. Adjust the Road Speed