PREVOST H3-45 VIP Owner's Manual page 131

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
troubleshooting code
4 Poor DEF quality detected and four (4) hours
of operation
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
with active diagnostic
with active diagnostic
PA-1619 Owner's Manual H3-45 VIP
Amber Warning Light & DID
Message And Audible Warning
None
POOR DEF QUALITY
DETECTED
solid
SERVICE DEF
SYSTEM AT NEXT
STOP
3 cycles of 2 beeps
POOR DEF QUALITY
DETECTED
solid
ENGINE IN DERATE
5 MPH (8KM/H) LIMIT
IN < XXX MINS
3 cycles of 2 beeps
SERVICE DEF
5 MPH (8KM/H) LIMIT
solid
NEXT 20MIN
VEHICLE STOP
3 cycles of 2 beeps
SERVICE DEF
VEHICLE SPEED
solid
LIMITED TO 5 MPH
(8 KM/H)
continuous cycle of 2
beeps
Other Features 5-9
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