PREVOST H3-41 Manual page 129

Oil Level Sensor (OLS) Codes
Oil level codes are obtained as follows:
- Press both the " " (up arrow) and " "
(down arrow) push-buttons simultaneously.
Oil level codes are displayed in two minutes
(e.g., display will flash and 8, 7,...; countdown
will occur during the two minutes) once the
following parameters are met:
- engine at idle
- oil at operating temperature
- transmission in neutral (N)
- transmission output shaft stopped
- oil level sensor present and working
After two minutes, the display will flash one of the
codes shown below.
CODE
OL-OK
LO-01
LO-02
HI-01
HI-02
Failure to meet one of the above
NOTE:
parameters will stop the two minute countdown.
One of the codes shown below will indicate the
cause of the countdown interruption.
parameters are met, the countdown will continue
from where it left off.
CAUSE OF CODE
oil level is correct
one quart low
two quarts low
one quart high
two quarts high
Once all
CODE
OL-50
OL-59
OL-65
OL-70
OL-79
OL-89
OL-95
Exiting the Oil Level Display Mode
To exit the oil level display mode, press any range
button ("R", "N" or "D").
Clearing Codes
If the DO NOT SHIFT light is illuminated, first
clear all diagnostic codes by pressing both the
" " (up arrow) and " " (down arrow) push-
buttons at the same time, twice.
Take the coach for a test drive. If the DO NOT
SHIFT light illuminates
diagnostic codes. Refer to "World Transmission
(WT) Diagnostic Codes" under "Reading Codes".
8-26
TECHNICAL INFORMATION
CAUSE OF CODE
engine speed (rpm) too low
engine speed (rpm) too high
neutral must be selected
sump oil temperature too low
sump oil temperature too high
output shaft rotation
sensor failure
again, record the