PREVOST H3-41 Manual page 115

Clearing the Active Indicator and Code
Records from the Code List in Memory:
If the conditions causing a diagnostic code are
cleared, the active indicator can be manually
cleared by holding the MODE push-button down
continuously for 3 seconds until a tone is heard
from the shift selector. To clear code records
from the list, hold the MODE push-button down
continuously for ten seconds until a second tone
sounds. All diagnostic records in the list that are
inactive will then be cleared and the remaining
records will then move up the list.
Code Reading and Code Clearing
Procedures:
Diagnostic codes can be read and cleared by two
methods: by using the Pro-Link 9000 diagnostic
tool plugged into the receptacle located on the
L.H. control panel; or, by using the shift selector
display. The operation of the Pro-Link 9000
diagnostic tool is described in the user's manual
provided with the tool. This section describes how
to read and clear codes using the shift selector
display.
The Diagnostic Display Mode can be entered for
viewing codes at any speed. Codes can only be
cleared when the output speed = 0 and no output
speed sensor failure is active.
The following describes how to read and clear
codes using the shift selector display:
Reading Codes:
Read codes as follows:
1. Enter the diagnostic display mode by
pressing both the " " (up arrow) and " "
(down arrow) push-buttons at the same time,
twice on the push-button shift selector.
NOTE: To obtain the oil level, press the " " (up
arrow) and " " (down arrow) push-buttons once,
at the same time. Refer to "Oil Level Sensor
(OLS) Codes" in this section.
2. Read the first code in the first of the five code
positions on the digital display of the shift
selector. For example, code "25 11" is
stored in the first position. The display will
change every two seconds as follows:
a. Code list position = "d1"
b. Main code = "25"
c. Sub code = "11"
d. Display will repeat steps a., b. and c.
3. Press the MODE push-button momentarily to
view the second position (d2) as described in
step 2.
4. To view the third, fourth and fifth positions
(d3, d4 and d5), momentarily press the
MODE push-button as explained above.
5. Pressing
momentarily after
displayed will return the code display to the
first position (d1).
6. Any code which is active will be indicated by
the MODE ON indicator (active indicator)
being illuminated while in that code position.
While in the normal operating mode, the
MODE ON indicator is illuminated to indicate
the ECONOMY mode operation. Refer to
"Controls & Instruments" section under
MODE.
7. Any code position in the list which does not
have a diagnostic code logged will display "- -
" for both the main and sub code displays.
All positions after a code position without any
code stored will also display "- -".
Clearing Codes:
Clear codes as follows:
1. Clearing
automatically done at ECU power-down for
all codes except code "69 34".
2. Some codes will clear the active indicator
automatically when the condition causing the
code is no longer detected by the ECU.
Refer to the "Diagnostic Code List and
Description" table in this section.
3. Manual clearing is possible while in the
diagnostic display mode and after the
condition causing the code is corrected
(output speed must be zero).
8-12
TECHNICAL INFORMATION
the MODE push-button
the fifth position
of the active indicator
is
is