PREVOST H3-45 2023 Operator's Manual page 142

5-10 Other Features
SCR SYSTEM TAMPERING - DRIVER WARNING AND INDUCEMENT
Conditions / Triggers
1 Normal
No diagnostic troubleshooting
code active
2 SCR system tampering
diagnostic troubleshooting code
confirmed
3 Reached one (1) hour of
operation with active
SCR system tampering
diagnostic troubleshooting code
confirmed
4 Reached four (4) hours of
operation with active
SCR system tampering
diagnostic troubleshooting code
confirmed
5 Diesel fuel refueling done with a
fuel level sensor increase of 15%
or more
Amber Warning
Message And Audible Warning
None
SCR SYSTEM FAULT
ENGINE WILL
solid
DERATE IN < XXX
MINS
SCR SYSTEM FAULT
ENGINE IN DERATE
solid
5 MPH (8KM/H) LIMIT
IN < XXX MINS
SCR SYSTEM FAULT
REPAIR NEEDED
solid
5 MPH (8KM/H) LIMIT
NEXT VEHICLE
STOP
SCR SYSTEM FAULT
VEHICLE SPEED
solid
LIMITED TO 5 MPH (8
KM/H)
PA-1652 Operator's Manual H3-45 Coach
Light, DID
None
Warning message
constant tone
Engine torque reduction
of 25%
constant tone
Engine torque reduction
of 40%
constant tone
Vehicle road speed
limited (RSL) to 5 mph (8
km/h)
constant tone
Inducement