freightliner WALK-IN VAN CHASSIS Operator's Manual page 108

GM Gasoline Engine
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 ac-
cessed by using the toggle buttons and selecting the
auxiliary screens. Then navigate to the diagnostic
sub-menu. Some of the more frequently used diag-
nostic menus are described further below.
Engine Faults
This screen displays engine fault codes that are re-
ceived from the engine electronic control unit (ECU).
To navigate to the engine fault screen, see
screen AA.
Transmission Faults
This screen displays transmission fault codes that
are received from the transmission ECU. To navigate
to the transmission fault screen, see
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
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
15.9
Fig. 15.8,
Fig. 15.8,
Fig. 15.8,
Fig. 15.9, AG screens.
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
Fig. 15.9, screen AH.
Check LCD
Selecting the check LCD screen displays the Freight-
liner Custom Chassis Corporation (FCCC) logo in
normal and reverse video three times and then re-
turns to the menu. To navigate to the check LCD
screen, see Fig. 15.9, screen AI.
Check Binary Inputs
The check binary inputs screen displays the pin num-
ber and status of each binary input. The toggle but-
tons allow the driver to select each binary input. This
information is continuously updated to assist in
troubleshooting. To navigate to the check binary in-
puts screen, see Fig. 15.9, screen AJ.
Check Analog Inputs
The check analog inputs screen displays the pin
number and actual value of each analog input de-
fined 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
Fig. 15.10, screen AK.
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 da-
talink screen, see Fig. 15.10, screen AL.
Menu Navigation
The menu navigation screens are provided to illus-
trate the menu system. The paths to specific screens
are shown, along with instructions for using the
toggle buttons to move from one screen to another.
See Fig. 15.77, Fig. 15.8,
Fig. 15.1111, Fig. 15.12,
Fig. 15.1515, Fig. 15.16,
and Fig. 15.1919.
IMPORTANT: Follow the steps below to change
the three items (also known as favorites) shown
in the message display center. The message
Fig. 15.99, Fig. 15.10,
Fig. 15.1313, Fig. 15.14,
Fig. 15.1717, Fig. 15.18,