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Fully programmable shift lights
The Sequential Shift Light from CARTEK indicates to drivers the preferred time to shift up gear to gain maximum performance from their engine.
This fully integrated device is designed to be mounted onto the dashboard and works with most ignition systems and tacho signals.
The unit is quickly and easily programmed and requires just 3 electrical connections.
HOW IT WORKS
The CARTEK Shift Light takes in an RPM Signal, 12V Power, and Ground. An extra white wire is used to put the unit into setup mode. This is achieved by touching the setup wire to chassis earth, and then start the engine. Two outer green LED’s will begin to flash - this will only happen in setup mode.
First you store the lower RPM of the sequence. To do this raise the revs to your starting point and then immediately reduce the revs. The Shift Lights will have stored the RPM that you want to start at.
Then touch the setup wire to chassis earth, and then raise your revs to the highest point you want the Shift Lights to finish at. Immediately reduce the revs again and the Shift Lights will have stored the highest RPM.
Touch the setup wire to chassis earth to finish the setup mode. It will calculate all intermediate LED levels of the sequence and will be ready to use.
OBD 2 CAN-BUS SIGNAL CONVERTER
Many aftermarket car accessories such as Gear Shift Lights, Tachometers or Digital Gear Displays require connection to electrical signals which are often not available on modern cars.
The CAN-Bus Signal Converter from CARTEK simply plugs into the OBD (On Board Diagnostic) socket found on most modern cars and provides four useful signals by extracting and converting engine data from the car's CAN-Bus network.
Locate the car's OBD2 socket which will be within 60cm (2ft) of the steering wheel. Insert the CAN-Bus Signal Converter then start the engine. If this is the first time the CAN-Bus Signal Converter has been installed then it may take a short while for it to interrogate the car's CAN-Bus network and synchronize to the correct protocol. This will be indicated by a Red LED.
Once the correct protocol has been determined then engine data will be extracted from the CAN-Bus network and converted into output signals. This will be indicated by a flashing Green LED.
RPM (Blue wire)
This is a 12v square wave signal where the frequency increases with engine speed. The signal outputs 2 pulses per crankshaft revolution
SPEED (Green wire)
This is a 12v square wave signal where the frequency increases with road speed. The output frequency is approximately 2500 pulses per kilometer (1570 pulses per mile).
ENGINE RUNNING (Grey wire)
This signal remains high (+12v) when the engine is stationary and is driven low (0v) when engine speed exceeds 350RPM.
VEHICLE TRAVELLING (Yellow wire)
This signal remains high (+12v) when the car is stationary and is driven low (0v) when road speed exceeds 9 Km/h (6mph).