PREVOST H3-45 VIP Owner's Manual page 115

DEF QUALITY - DRIVER WARNING AND INDUCEMENT
Conditions / Triggers
1 Good DEF quality
2 Poor DEF quality detected
3 Poor DEF quality detected and one (1) hour of
operation with active diagnostic troubleshooting
code
4 Poor DEF quality detected and four (4) hours of
operation with active diagnostic troubleshooting
code
5 Poor DEF quality detected
Diesel fuel refueling done with a fuel level sensor
increase of 15% or more
or
Vehicle stationary (speed=0) for 20 minutes with
engine off or at idle
or
Key cycle trigger
Amber Warning Light & DID
Message And Audible Warning
None
solid
solid
solid
solid
PA-1638 Owner's Manual X3-45 VIP
Other Features 5-9
POOR DEF QUALITY
DETECTED
SERVICE DEF
SYSTEM AT NEXT
STOP
3 cycles of 2 beeps
POOR DEF QUALITY
DETECTED
ENGINE IN DERATE
5 MPH (8KM/H) LIMIT
IN < XXX MINS
3 cycles of 2 beeps
SERVICE DEF
5 MPH (8KM/H) LIMIT
NEXT 20MIN VEHICLE
STOP
3 cycles of 2 beeps
SERVICE DEF
VEHICLE SPEED
LIMITED TO 5 MPH (8
KM/H)
continuous cycle of 2
beeps
Inducement
None
Warning message
Engine will derate
25% in < 60 mins
Engine derated 25%
Engine will derate
40% in <240 mins
Engine derated 40%
5 mph (8 km/h) limit
after next 20 min
vehicle stop
Service DEF
Vehicle road speed
limited (RSL) to 5
mph (8 km/h)
Note: The vehicle
has to be stationary
before 5 mph (8
km/h) road speed
limit becomes active