Vetronics 760
-9-
7.3. Checking Business/Private switch
With the ignition key turned on and switched to the "private journey" position, the built-in LED on the switch
lights on. If the LED does not light up, check the wiring of the switch. In the "private journey" position, there must be
a zero voltage on the brown-white and white wires and the voltage 1 - 2.5 V must be on the contact marked "+".
When switching to the "business journey" position, the white wire must have a voltage greater than 5 V And "+"
contact approx. 4 V.
7.4. Checking Dallas chip/RFID reader
There are several variants of the chip readers. It is necessary to select the proper variant and to connect the
reader according to the table in the Chapter 5. After the ignition key is switched on, the red light in the center of the
reader lights up and after a few seconds a beeping starts. By attaching the identification chip, the LED goes off and
the beeping stops.
If the indicator light does not light up when the power is turned on, verify that the voltage on the red-green wire
is about 3.8 V. Check the LED in the sensor by connecting the green wire and cathode diode to the ground for a
moment. The functional LED should light up. When the LED does not go out after the chip is attached, check the
reader connection.
The RFID reader works in terms of LED and audio signals in the same way as Dallas chip reader.
Note: The Dallas chip reader or RFID reader is activated based on customer requirements when ordering. If the
sensor does not work, even if the wiring is correct, the unit may be defective. Contact your supplier if necessary.
7.5. Checking unit systems via web interface
You can easily diagnose the drive through the web interface, which can be found at
http://diag.princip.cz
7.6. Checking unit systems using diagnostic SMS
Diagnostic SMS checking is used to verify the basic functions after mounting the unit. The check can be made
according to the following procedure:
• From the mobile phone, send an SMS to the phone number of the unit with the letter "S" or "s" (status).
• For SMS card units with 898823900000xxxxxxxx ICCID form, you can send an SMS in the form Axxxxxxxx, where
xxxxxxxx is the ICCID ending number on the SIM card or the SMS containing SN of the unit in the form S7xxAxxxxx, on
the phone 420602229317. E.g. For ICCID 89882390000001234567 the SMS is: A1234567
If the unit does not respond, it is necessary to check the GSM system. The response format for the diagnostic
message is as follows:
OK/ERR/OFF GPS=ss u=x A=a engprs=g alive=tt aux=app(t) trm=app(t) SN=nnnnnnnn HW=h.hh FW=f.f.f.f ccc ……..
Individual groups of SMS information mean:
OK/ERR/OFF
It is assumed that for testing the GPS function you must wake up the unit by turning on the ignition key.
Therefore, the first item is whether the unit detects a voltage signal behind the key and whether it has any
information from GPS.
value
meaning
OK
ignition is detected, GPS module has enough signal from satellites
ERR
ignition is detected, GPS module has not determined the position yet
OFF
ignition is not detected
GPS
Item “GPS=xxx“, where xxx is a number of receiving GPS satellites. Signal from at least four satellites is sufficient
for the satisfactory operation. There are usually 8-12 satellites in place with good views of the sky. The low number of
signals in such a location may be related to the improper installation of the GPS antenna.
