PREVOST H3-41 - Fluid Level Sensor (Ols) Codes

TECHNICAL INFORMATION
MAIN
CODE
SUB
CODE
DESCRIPTION
CHECK
TRANS
LIGHT
INHIBITED OPERATION
DESCRIPTION
63 40 Service brake status input, failed on No
No auto Neutral to Drive shifts
for refuse packer (I/O
package # 41).
64 12
Retarder modulation request sensor,
failed low
No Retarder operation inhibited
64 23
Retarder modulation request sensor,
failed high
No Retarder operation inhibited
66 0 Serial communications interface fault No
Use default throttle values,
DNA
66
11
SCI engine coolant source fault
No
Use default value of 0°F
69
27
ECU, inoperative A-Hi switch
Yes
DNS, NNC, DNA
69
28
ECU, inoperative F-Hi switch
Yes
Lock up inhibited, DNA
69 29 ECU, inoperative N and H-Hi switch No
Low and 1st inhibited,
retarder inhibited, DNA
69 33
ECU, Computer Operating Properly
(COP) timeout
No
RESET ECU, SHUTDOWN
ECU ON 2ND
OCCURRENCE (POWER
LOSS: HYDRAULIC
DEFAULTS), MAY CAUSE
"CATEYE" DISPLAY, DNA
(4)
69 34 ECU, write timeout Yes
DNS, SOL OFF
(Hydraulic default), DNA
69 35 ECU, checksum test No
Induce COP timeout
(reset ECU), DNA
(4)
69 36 ECU, RAM self test No
INDUCE COP TIMEOUT
(reset ECU), DNA
(4)
69 39 Communication chip addressing error No
Use default for J1939 data,
DNA
69 41 ECU, I/O ASIC addressing test No
Induce COP timeout
(reset ECU), DNA
(4)
69 42 SPI output failure Yes
GPO 1-8 and reverse warning
inoperable
69
43
SPI input failure
Yes
DNS, lock in range, DNA
(1) This code is logged in real time to protect the transmission in case a loss of power to the ECU. Power
Interruption code 35 00 occurs.
(2) The ECU hardware or software must be changed so that they are compatible.
(3) Additional codes could be logged for other shifts where X indicates range shifted from and Y indicates
range shifted to.
(4) The COP reset will clear the active inhibit.
FLUID 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 2 minutes (e.g. display
will flash and 8, 7, ...; countdown will occur
during the 2 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 2 minutes, the display will flash one of the
codes shown below:
CODE
CAUSE OF CODE
OL-OK
Oil level is correct
133