Note however that lower gears can be selected regardless of the current road speed. It could be
dangerous and result in wheel lockup and accidents.
To cancel limp mode, switch the ignition off.
8. Startup Procedure
This is a very important procedure to prevent damage to the TCU and Transmission. If at any time
the clutches slip, back off the TPS immediately and increase the line pressure or check if fluid
levels are correct. Do not continue like this because the clutches are very delicate and can
damage in seconds.
8.1 Transmission and system preparation.
Before you connect the TCU do the following:
1. If it is a conversion, service the Transmission filter and oil. Make sure if the Transmission uses
ATF or synthetic oils. Check the oil level when the engine is running in drive.
2. First ensure that the installation is correct according to the Hardware Installation procedure.
3. Test the electrical wiring a multi meter according to the Excel Test Procedure file provided on
the CD.
8.2 Connecting the TCU for the first time
Now you can proceed with the following steps. If any steps do not correlate with the TCU
operation, stop and look for the faults. Ensure that the TCU is earthed!!!
1. Remove the solenoid fuses.
2. Connect only the 12 way connector leaving the 10 way connector open. Switch the Ignition
on. Do not start the Engine. The yellow LED on the TCU must come on. If the yellow LED
does not come on switch off immediately as there may be a short on the 5Volt output that
will damage the TCU.
3. Ensure that the pins 1,4,6,7,8 &9 are broken out of the communications connector if you
are not using a Spitronics USB Converter cable.
4. Now switch the Ignition off and connect the Laptop to the TCU. Switch it on again. Start the
PC software and connect to the TCU. The Transmission data like the TPS and gear
position should be displayed.
5. Start with Profile 1 in automatic.
6. Go through the setup page and ensure all the settings are correct for the Transmission.
7. Calibrate the TPS sensor and save the calibration as described under active sensors. The
TPS and speed sensor must be calibrated in Profile 1.
8. If you changed the RPM range value, save the data to the TCU, close the PC software and
start it again. Then the new values for the graphs will be loaded to the correct scaling.
9. Put the shifter in different positions and see if the software recognize reverse and drive as
well as other positions which it is wired for.
10. Start the engine and make sure the rev counter is calibrated.
11. Switch the ignition off and connect the 10 way connector. Replace the fuse and start again.
12. Put the shifter in drive and the software on the gear profiles. Pull off in first and see if the
speedometer works.
13. If the gears are slippery reduce the line pressure value on the graph according to the tuning
principles.
14. Calibrate the speedometer asking a passenger to do the calibration value till it reads the
same as the car speedometer or a GPS.
15. See if all the gears select and gear back.
16. Do fine tuning according to the tuning principles.
17. Save the data for that profile and start tuning the other profiles and functions.
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