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Page 41/55 UltraGauge™ EM User Manual www.ultra-gauge.com
NOTE: If the ignition is placed in the RUN position and UltraGauge fails to exit low power mode, pressing UP will exit the low
power mode. If the ignition is off, pressing UP, will cause it to exit the low power mode and then immediately reenter low
power mode. (Note, on some versions, use the MENU key for this function instead of the UP key.).
Warning
: Setting the “Power on Detect mode” to mode 1 may cause some vehicles to experience battery drain. This is a
common problem for 2000-2006 GM vehicles.
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MENU
UltraGauge Setup ..
Compatibility ..
Pwr on Detect Delay
Sets the time from when the ignition is switched off until when UltraGauge begins monitoring the communication bus in order
to sense when the ignition is again in the RUN position. Normally the default value of 6 seconds is best. However, if there are
devices on the bus which continue to be active after the ignition has been turned off; this activity can potentially cause other
devices to remain active. Active devices consume more power and represent a drain on the battery. By adding a bus delay time
that corresponds to the time greater than when the last device finally becomes inactive, the bus can be assured to be in a low-
power state.
If there is a suspicion that modules on the bus are remaining active, and thus causing a drain on the battery, increase this time to
several minutes to see if the battery drain stops. If this does stop the drain, reduce the time to the smallest value possible that
achieves the same results.
This Bus delay time also has the negative side effect that if the ignition is switched off and then back to RUN quickly,
UltraGauge will not detect the RUN position until the Bus delay time has expired.
NOTE: The issue of active devices after ignition OFF, is common to early 2000-2005 GM and Mini Cooper vehicles.
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UltraGauge Setup ..
Compatibility ..
Pwr off Detect mode
For most vehicles UltraGauge will correctly detect when the ignition has been switched to OFF. Should UltraGauge remain on
beyond 15 seconds after exiting the vehicle, use this setting to change the method UltraGauge uses to detect that the ignition is
in the OFF position.
There are five Power off Detect modes; 0,1,2 3 &4. Mode 0 is the factory default. If when set to mode 4, there are no resulting
operation issues, mode 4 is typically preferred. In general the order of mode preference is 4, 2, 1, 0, 3.
If Power-off/ignition-off detection is failing, change the mode value until UltraGauge can successfully sense that the ignition is
OFF. Mode 3 is designed to detect ignition OFF on any vehicle. However, mode 3 has the side effect that UltraGauge will not
exit power-down mode, unless the engine is running. This means that configuration changes must be made while the engine is
idling. Never make configuration changes while driving.
If after increasing the mode UltraGauge will not power on, please follow this procedure:
Unplug UltraGauge
Turn the ignition to the RUN position
Press and hold the Menu key
Plug in UltraGauge
This will allow access to the configuration menu. Once in the menu, select a different mode.
Exit the Menu.
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MENU
UltraGauge Setup ..
Compatibility ..
Pwr off retries
By default UltraGauge will power-down if the vehicle’s ECM does not respond after 3 communication attempts. A non
responsive ECM is indicative of the ignition being in the Off position. This setting allows the number of failed communication
attempts to be set from 2-99. Normally a value of 3 is best and preferred. If UltraGauge at times enters low power mode and
briefly turns off the display while the ignition is in the RUN position, increase the number of retries until the behavior stops.
The side effect of increasing the value is that UltraGauge will remain on for a longer period of time after the ignition is switched
to Off. Hence, a smaller value is best.
Changing this setting is not recommended for vehicles with KWP 2000 or 9141 protocols.
This configuration setting was primarily added for Smart Cars which experience a false ignition off detection roughly every 30
minutes.
