World Transmission (Wt) Diagnostic Codes - PREVOST H3-41 Manual

DDEC
Code
Number
(Flashed)
81 Oil level circuit failed high
82 Timing actuator (dual fuel) failed low
82 Crankcase pressure circuit failed
low
83 Crankcase pressure high
84 Crankcase pressure low
86 Pump pressure circuit failed high
87 Pump pressure circuit failed low
88 Coolant pressure low
-- CEL open circuit
-- Clock module abnormal rate

WORLD TRANSMISSION (WT) DIAGNOSTIC CODES

Diagnostic Code Memory
Diagnostic codes are stored in a list in memory (sometimes referred to as a queue). The last occurring
codes are listed first. Up to five codes can be stored in memory. Accessing the code list position, main
code, sub code and active indicator is done through the shift selector display or through the Pro-Link
diagnostic tool. Access to the ignition cycle counter and event counter is through the Pro-Link diagnostic
tool only. The following table is an example of the information stored in memory.
Code List Main Code
Position
d1
d2
d3
d4
d5
Displayed on shift selector display and diagnostic
tool
NOTE:
All information stored in memory can be accessed using the Pro-Link diagnostic tool.
DESCRIPTION
Sub Code
21 12
41 12
23 12
34 12
56 11
DDEC
Code
Number
(Flashed)
81 Crankcase pressure circuit failed
high
82 Oil level circuit failed low
83 Oil level high
84 Oil level low
85 Engine overspeed
86 Barometric pressure circuit failed
high
87 Barometric pressure circuit failed
high
-- CEL short to battery
-- Clock Module failure
Active Indicator Ignition Cycle
YES
YES
NO
NO
NO
Ignition cycle counter and event
"YES"=ACTIVE
counter are not available on shift
=
selector display
"MODE ON"
8-9
TECHNICAL INFORMATION
DESCRIPTION
Event Counter
Counter
00 10
00 04
08 02
13 01
22 02