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