463-0620-01 Rev A. June-2015
10
620 Operation and Troubleshooting Guide
plus
CAN
®
An active fault indicator is displayed near the upper right corner of the display after the fault list is
closed as long as a fault is active. The fault indicator is automatically removed and the fault list is
cleared a few seconds after active fault messages stop.
The fault list can be reopened at any time by pressing any of the first 4 buttons and then pressing button
4 . If there are no active faults, a blank list is displayed with the message No Active Faults.
Inactive Faults
Inactive Faults
(also called
stored
or
previously active faults
) are history save by the engine ECU and
other devices on the CANbus. The fault history from all devices on the CANbus can be read by pressing
button 4 from the Active Faults list. Any inactive faults are displayed with the same information
available for active faults. If no stored faults are available, a blank list is displayed with the message No
Inactive Faults. A popup displays No Response From Engine if no J1939 device responds to the inactive
fault request.
Inactive Fault List
No Inactive Faults
No Response
From Engine
Note:
Inactive faults may be cleared using the engine diagnostic tool. Some ECUs will
automatically clear inactive fault history.
Adjusting Backlight and Contrast
When no menu bar is shown, pressing button 5 opens the lighting and contrast menu bar. The display
backlight is adjusted by pressing buttons 1 and 2. Contrast is adjusted in the same manner
using buttons 3 and 4.
Display contrast is temperature compensated to avoid adjustments for most temperature changes. The
factory defaults can be restored by pressing and holding buttons 1 thru 4 simultaneously.
Service Required Popup
Users can set up to sixteen service timers in hours in the Configuration menu. The Service Required
popup is displayed at power up when one or more service timers has expired. Pressing any button
removes the popup. If no button is pressed the popup closes in approximately 5 seconds.
Service Required Popup
Data Communications Failure
