Vss - Vehicle Speed Signal - REVELTRONICS UTCOMP-3 User & Assembly Manual

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possibility to measure fuel injection timing (from injector
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possibility to measure fuel pressure: signal from fuel pressure sensor (it's located on common-rail tube) connect to Adc1 or Adc2 inputs and set
input configuration as "fuel pressure sensor (diesel common-rail)"
2.4.6. VSS – Vehicle Speed Signal
The pulse speed signal (VSS) connect to pin A22. There are few places when you should looking for speed signal:
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option 1: some vehicles have a VSS signal in the ISO socket of the radio (function volume up with increasing velocity) – generally pin 1 in socket
A (called as SPD, GAL, VSS etc.)
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option 2: in most cases speed signal can be located in instrument panel connector (marked usually as speed1, speed2, vehicle speed etc.) –
take a look in the vehicle's electrical system documentation for the signal connector from tachometer (pinout).
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option 3: if vehicle is with electronic injection system , VSS signal can be found at the ECU connector (even for vehicles with tachometer "on
cable") – check ECU pinout (electrical system documentation) which pins to select,
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option 4: connect straight to VSS sensor, which you can find in a gearbox body. The sensor can be two-pins (power and VSS signal) or three-
pins (additionally the GND wire is connected). Connect to the pin on which there is a pulsed signal (0..+12V) when the car is moving (usually
few pulses for one turn of the wheel),
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option 5: if your car is equipped with ABS than required signal can be found in one of the ouputs of ABS control unit,
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option 6: if your car definitely does not have VSS signal than you can install universal speed sensor (hall sensor + magnets) – described in other
manual (can be downloaded from our webpage)
Below is an example of a pulse signal from the VSS sensor (vehicle pushed)
2
piezoelectric injectors with 2-pin connector are compatible ; for electromagnetic 2-pin injectors you will need additional signal converter, e.g. CR-PWM
2
) – max 150V amplitude,
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