Menu System
The menu system is shown on the driver display screen once the self-test is finished. The menu system responds to input from the driver and remains active as long as the ignition is on. In order for the driver to operate the menu system, the ignition must be ON, and the park brake must be set (ON). The main features of the menu system are described below.
-
Setup—this is used to set various parameters, which are saved when the ignition is turned off. Setup has select display units, startup screen, LCD contrast, and reset parameters.
-
Maintenance—shows various maintenance intervals such as engine oil, air filter, etc.
-
Diagnostics—this is used for setting and reading inputs and outputs and checking the gauges. It also shows the hardware and software version of the instrument panel, and has menus to retrieve active error codes from the engine, transmission, and ABS controllers.
Note: It is not possible to highlight lines in the menu system screen. To get to the sections that can be highlighted, press the right arrow toggle button and hold it for two seconds. The display screen will change and the options shown can then be highlighted. Once a selection has been chosen and changes are made, press the right arrow toggle button to go back to the main message display screen.
Setup Menu
Select Display Units
The set units screen allows the driver to choose between English or metric units of measurement for the displayed values. To navigate to the set units screen, see figure , screens H, I, and J.
Fig. 1, Setup Menu Screens
Startup Screen
The startup screen selection allows the driver to turn the startup screen on or off.
LCD Contrast
Select contrast from the menu to set the LCD contrast. Use the down toggle button to set the contrast to the desired level. To navigate to the contrast screen, see figure , screen M.
Reset Parameters
The reset parameters screen is included with vehicles that have the Allison transmission prognostics feature.
Maintenance Menu
The maintenance menu has the following three sub menus:
-
maintenance intervals
-
transmission oil life remaining
-
transmission oil filter life monitor
Maintenance Intervals
The maintenance intervals menu allows the driver to set the change intervals for engine oil and engine air filter. If the intervals are set to zero, the maintenance warnings must be disabled.
Transmission Oil Life Remaining
If transmission prognostics are enabled, this menu indicates how much useful oil life remains.
Transmission Oil Filter Life Monitor
If transmission prognostics are enabled, the transmission oil filter life monitor tells the driver if the transmission oil filter is clogged and in need of repair. A message will appear on the display screen as TRANS OIL FILTER FUNCTIONAL or TRANS OIL FILTER CLOGGED.
Diagnostic Menu
The diagnostic menu contains the following items:
-
engine faults
-
transmission faults
-
ABS faults
-
check outputs
-
odometer diagnostics
-
check gauges
-
check indicators (warning lamps)
-
check LCD
-
check binary inputs
-
check analog inputs
-
check datalink
-
hardware/software version
All of the items in the diagnostic menu can be accessed by using the toggle buttons and selecting the auxiliary screens. Then navigate to the diagnostic sub-menu. Some of the more frequently used diagnostic menus are described further below.
Engine Faults
This screen displays engine fault codes that are received from the engine electronic control unit (ECU). To navigate to the engine fault screen, see figure , screen AA.
Fig. 2, Diagnostic Menu Screens, Screen 1
Transmission Faults
This screen displays transmission fault codes that are received from the transmission ECU. To navigate to the transmission fault screen, see figure , screen AB.
ABS Diagnostics
This screen displays Antilock Brake System (ABS) fault codes that are received from the ABS ECU. To navigate to the ABS diagnostic screen, see figure , screen AC.
Check Gauges
The check gauges screen allows the driver to set each gauge as a percentage of scale (either 0, 50, or 100%), as shown in the LCD. To navigate to the check gauges screen, see figure , AG screens.
Fig. 3, Diagnostic Menu Screens, Screen 2
Warning Lamp
The warning lamp screen allows the driver to test each warning lamp (not the vehicle load) on and then off, displaying the lamp name and status in the LCD. To navigate to the warning lamp screen, see figure , screen AH.
Check LCD
Selecting the check LCD screen displays the Freightliner Custom Chassis Corporation (FCCC) logo in normal and reverse video three times and then returns to the menu. To navigate to the check LCD screen, see figure , screen AI.
Check Binary Inputs
The check binary inputs screen displays the pin number and status of each binary input. The toggle buttons allow the driver to select each binary input. This information is continuously updated to assist in troubleshooting. To navigate to the check binary inputs screen, see figure , screen AJ.
Check Analog Inputs
The check analog inputs screen displays the pin number and actual value of each analog input defined in the system. The toggle buttons allow the driver to select each analog input. This information is continuously updated to assist in troubleshooting. To navigate to the check analog input screen, see figure , screen AK.
Fig. 4, Diagnostic Menu Screens, Screen 3
Check Datalink
The check datalink screen allows the driver to view all devices that communicate on the J1939, J1587, and GMLAN datalinks. To navigate to the check datalink screen, see figure , screen AL.