leaves the factory. We accept no liability for malfunctioning of the equipment, or to injury that may
result from installation or the use of the equipment. We also accept no liability for costs of traveling
of transportation of the equipment or parts or vehicle recovery due to failures of any equipment.
Please read the instructions and drawing and make sure you understand before you begin.
2.1 Operator Safety
•Use only proper tools and products suited for auto installations. Sub standard products and
installation procedures may cause failure to the equipment having your customer break
down in dangerous areas.
•Use correct thickness of wire to carry the entire current requirement for that circuit. Too thin
wires will heat up and may start a fire causing injury.
•Use fuses to protect each circuit separately. Joint circuits require large fuses which may
heat and melt lesser circuits causing fires.
•Solder joints, and cover it with shrink sleeve to prevent loose connections which may cause
fires. Space solder-joints so that they do not sit next to each other minimizing the chance of
a short circuit.
2.2 Equipment Safety
•If you have a firmware programmer, do not load Ver. E1 EMU or Ver. E2 ECU firmware on
the E20 SPITRONICS TCU or visa-versa. It will damage the Micro because they are
different. Make sure if you have E20 hardware to use E20 firmware.
•Never switch the power on, if the TCU enclosure is not grounded properly – this may
damage the TCU or sensors.
•Test the installation with the test procedure before connecting the TCU – this will prevent
damage due to faulty wiring.
•Install the free-wheel Diodes on relays that makes interference to prevent spikes from
interfering with the TCU.
•Break out pins 1,4,6,7,8 & 9 on USB to RS232 converters and on serial cables. These pins
are used for other inputs and outputs of the TCU. It will hang the TCU and damage drivers.
This does not apply to Spitronics USB converters.
•Do not connect screen wires on the Transmission or Engine. The starter will draw current
through them melting the harness.
•The TPS must be connected correctly as it may damage the TCU or TPS permanently.
•Ensure that wires are kept away from hot or sharp parts in the Transmission. Also ensure
that Transmission movement does not put strain on the wires, as metal fatigue will break
the wires in time, resulting in TCU failure.
•Ensure a proper earth between battery negative and chassis and also between battery
negative and the engine. Do not earth the engine on the body or the body on the engine.
•Do not disconnect the battery while engine is running. The alternator will create high
voltage spikes which may damage the TCU permanently. Ensure that all connections from
the battery and alternator are secure. Also connect the alternator charge wire directly to
battery positive and not to the harness somewhere.
•The revolutions trigger input may not be connected to coil negative. The high voltage spikes
on coil negative will damage the unit permanently.
•Whenever it sounds as if clutches are slipping, back off the throttle immediately and
increase the line pressure. These clutches will damage in seconds and destroy the
transmission.
•Leave the 10 way connector disconnected when you switch the TCU on the first time until
the setup is completed. Then connect the 10 way connecter and switch on. Ensure that the
fuse is the minimum required value. Too large fuse will not blow resulting in driver or
solenoid destruction.
•Never engage the lockup clutch under load. It will damage the clutch it very quickly.
•Ensure that the TPS and other signals operate correctly and are calibrated and set up
properly.
