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OM3006.4 04/98
Electronic Displays and Messages
If any of the severe fault codes that are listed below
appear on the warning screen,
Fault
Description
Code
b024 1st Clutch Failure
b025 2nd Clutch Failure
b026 3rd Clutch Failure
b028 Reverse Clutch Failure
T/M Output Speed Sensor
b063
Failure
perform the following procedure to move the truck:
1. Bring the truck to a stop in a safe location.
Apply the parking brake and move the range
selector to the neutral position.
2. Activate the limp home switch by removing and
reconnecting the single wire connector located
under the passenger seat.
3. Next move the range selector to either Drive,
5th, 4th, 3rd, Low or Reverse. The transmission
will then shift to F1 or F2 when either of the
forward positions was selected, Drive, 5th, 4th,
3rd, Low or Reverse when the R position was
attained.
4. The selection of F1 or F2 will be dependent on
the type of fault code.
5. The limp home switch will remain active until the
key switch is turned off.
Idle Validation Feature
If there is a problem with the throttle pedal signal, not
transmitting correctly, because of the harness, sensor,
or controller troubles, the engine speed will go to the
following settings:
Throttle Pedal Position
Pressed
Released
Remarks
Engine RPM
1300 RPM
7 50 RPM
CENTER ELECTRONIC DISPLAY PANEL
Action Code Display
As previously discussed, if a fault occurs in any of the
monitored systems, a code will be displayed on the
"MOM" screen. At the same time an action code will
also be displayed to inform the operator of a procedure
to follow because of the fault. This "action code" is also
displayed on the electronic display panel. The elec-
tronic display panel will display the action code of any
fault informed through the serial communications net-
work, "S-NET," from any controller that detects a fault
. When the fault occurs, the action code of this fault will
be displayed automatically.
FIGURE 1.
When displaying an "03" action code, first the "E" will
be displayed (Figure 1) and then, the "03" code (Figure
2) will be displayed.
FIGURE 2.
These two displays will alternate every second. The
other displays, gauges and pilots will function as nor-
mal. If more than two codes are present at the same
time, the highest priority action code will be displayed.
That priority is as follows: 04; 06; 05; 07; 03; 02; 01.
Operation - Section 3
Page 3-41
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