Safety Precautions - Spitronics TCU Standard Manual

The different models are as follows:
TCU Standard
This is the most basic and cost effective form of the TCU. It is made for common negative
transmissions and has 4 drivers. Signal required are revolution pulse, speed pulse, TPS
signal and inputs from the shifter, Profile Switch and Tiptronic buttons. It has two LED's to
indicate basic modes and operation. This is mostly for the basic transmissions like the
Lexus A343E auto box.
TCU Intermediate
This TCU is the same as the standard model but has 6 or more drivers for more
complicated transmissions and comes in a common positive and common negative
configuration. This is used for the newer more intelligent automatic transmissions.
All wiring harnesses use screened cables for neatness of installation and to prevent interference
from other electronics or electromagnetic pulses, which may otherwise cause erratic behavior of
the TCU.
1.1 Features
• Up to 4 different profiles for different setups can be loaded like Automatic, Tiptronic, Towing,
Racing, Off Road, and Low Range.
• Internal Drivers up to 6 on existing models.
• Harnesses and drawings included.
• Adjustable gear settings for each gear.
• Adjustable line pressure.
• Speed and RPM signals used for shifting.
• Small Compact South African Design.
1.2 Abbreviations
TCU – Transmission Control Unit
ECU – Engine Control Unit
PCM – Power Train Module
TCC – Torque Converter Clutch
EPC – Electronic Line Pressure
TFT – Transmission Fluid Temperature
TOT – Transmission Oil Temperature
SS1 – Shift Solenoid 1
TPS – Throttle Position Sensor
VSS – Vehicle Speed Sensor
TCS – Transmission Control Switch
MAF – Mass Air Flow
MAP – Manifold Air Pressure
ECT – Engine Coolant Temperature
WOT – Wide Open Throttle

2. Safety Precautions

The following guidelines will ensure proper operation the first time. Failure to install equipment
correctly may damage it or other equipment permanently. These failures will solely be the
responsibility of the installer and no guarantees will be given by Spitronics. Make sure you have
read the Terms and Conditions on the website
By installing the TCU you automatically agree to these conditions. All equipment is tested before it
www.spitronics.co.za before you install this TCU.