Headlights Or Fan Cooler; Analog Sensors - Adc And Adcvcc Inputs - REVELTRONICS UTCOMP-3 User & Assembly Manual

In most latest cars, instead of speed sensor, there is signal sending from ABS control module or from instrument panel – signal will be the same as
this one at the picture above.
There is a small percentage of vehicles that have electronic fuel injection, and do not have the speed sensor. In this case, the sensor can be installed
yourself (in the gearbox - if the manufacturer predicted such possibility), or assembly the usual hall sensor (option 6).

2.4.7. HEADLIGHTS or FAN COOLER

In order to activate the signaling function of the radiator fan OR headlight reminder, appropriate signal (+12V when the fan/headlights is turned on,
0V when turned off) should be connected to pin A21. After assembling, appropriate option should be chosen in UTCOMP PC application (cooler state
info or headlight reminder).

2.4.8. ANALOG SENSORS - Adc and AdcVcc inputs

UTCOMP-3 supports 3 analog inputs (Adc1, Adc2, AdcVcc1), UTCOMP-PRO supports 7 analog inputs (Adc1, Adc2, Adc3, Adc4, Adc5, AdcVcc1,
AdcVcc2). Example of use: analog temperature sensors (NTC), boost pressure from MAP/MAF, oil pressure sensor, lambda o2 sensor, AFR readings
from wideband o2 controller, exhaust temperature from EGT controller, fuel level, gear indicator etc.
Adc1, Adc2, Adc3, Adc4 and Adc5 are high impedance, buffered inputs - you can connect voltage signals from any analog sensors assembled in the
vehicle. Adc1-Adc4 are 0-5V range. Adc5 input is 0-30V.
AdcVcc1 and AdcVcc2 inputs have built-in divider with pull-up to +5V, so you can connect to them any additional resistance sensors, e.g. NTC
temperature sensors, resistance pressure sensor, fuel level sensor etc. UTCOMP measures voltage drop directly at resistance sensor. Please note: you
should NOT connect any factory vehicle sensors to AdcVcc inputs! (factory sensors are already powered from vehicle installation - in this case
connect voltage signal to any of Adc1 - Adc5 inputs).
In UTCOMP application you can associate each sensor with appropriate analog input, so connection order does not matter. For all analog inputs you
can activate oscilloscope (real-time voltage drawing on chart) and set dedicated alerts (e.g. to low oil pressure, to high boost pressure, to high
engine/oil temperatures, AFR outside safe range, to high EGT etc.).
- 20 -