15.
Date and Time displayed on the screen is incorrect:
The real-time clock (RTC) battery is probably not
installed or dead. There is a rubber protective cover on the back of the display unit. Under this cover is the
RTC battery holder. Check that the CR1220 battery is correctly installed in the holder. The battery must be
fully inserted and the "+" mark must be visible on the battery. If there is no battery, install a new CR1220
battery in the holder. If there is a battery, but the wrong type or incorrectly installed, remove this battery
and insert a new CR1220 battery in the correct way. If the CR1220 battery is installed correctly, but the time
and date are incorrect after the Dash7 restarts, the battery is probably dead and you need to replace it with
a new one. A very small screwdriver or small extraction tool is usually required to remove the old battery
from the holder.
16.
Configurable Input of the Dash7 do not work properly like analog input for temperature or pressure:
Probably this input is now configured as a digital input for the neutral switch. To use the configurable input
as an analog input, you must go to the "Gauges" menu and set the "Neutral Gear Channel" to "OFF". It
disables neutral gear sensing and allows you to now use this configurable input as an analog input for
temperature or pressure. A reboot of Dash7 may be required after changing these settings (this function is
available only for firmware V7.3.3 and GUI V3.6.2KN or higher).
17.
Speed 1 or Speed 2 gauge still shows 0 kmh or mph even if car moves:
You probably don't have a wheel
speed sensor connected to the wheel speed input of the Vems ECU, or the sensor is not properly calibrated
or faulty or installed incorrectly. Calibration of the wheel speed sensor must be performed in the Vems ECU
via Vemstune software. The Dash7 only reads wheel speed values from the ECU and therefore no
configuration is required in the Dash7.
18.
Gear gauge still shows “N” or “R” even when another gear is engaged:
Probably Reverse gear input or
Neutral gear input (Dash7 configurable input) are shorted to ground or their voltage is under 3 Volts. It could
be a wiring problem or faulty switch. Check function of reversing lights switch on the gearbox. If faulty,
change the switch, if not, check your wiring for short-circuits to ground. Same with the Neutral gear switch
(connected to the Dash7 Configurable input pin). Check if you are not using Configurable input pin for
another purpose (pin connected to the pressure or temperature sensor, etc…). If yes, you need to go to the
"Gauges" menu and set the "Neutral Gear Channel" to "OFF". It disables neutral gear sensing and allows you
to use this Configurable input as an analog input for temperature or pressure. A reboot of Dash7 may be
required after changing these settings (this function is available only for firmware V7.3.3 and GUI V3.6.2KN
or higher).
If your Neutral gear or Reverse gear inputs are not connected to the harness (not in use) and Gear
gauge shows “N” or “R” (very rare case), you can try to add some pull-up resistor (eg. 2.7kOhm) between the
input pin and +5V sensors supply pin. If you have followed all the steps described above and the problem
persists, please contact our tech support.
19.
Oil press, Fuel press or Oil temp gauge in Dash7 is showing different value than in Vemstune:
Probably
your Oil pressure, Fuel pressure or Oil Temperature channels in the Dash7 are not calibrated correctly. You
need to go to the "Gauges" menu and select the “Press channels calibration” or “Temp channels calibration”
button. Then if you press the OK button on the remote control, you will be taken to the calibration page,
where you can set a source channel for that pressure or temperature gauge. As a source you need to select
the ECU analog channel to which your sensor is wired. Then set voltage and pressure (or temperature)
values depending on the sensor manufacturer’s datasheet (or Vemstune data). If everything is set correctly,
exit the menu and you should see the correct value on your pressure or temperature gauge.