Pierce Enforcer, Operator'S Manual

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Engine Exhaust After Treatment Systems / 5-27
OPERATION
5-13. Detroit Diesel ATD Regeneration
5-13.1 After Treatment Device Indicator Lights - Detroit Diesel
Table 5-5: Detroit Diesel ATD Instrument Panel Lights
The amber Check Engine Lamp (CEL) warning light indicates a fault with the engine
controls or aftertreatment controls and/or components has occurred. The operator can drive
the vehicle to the end of their shift and call service to remedy the problem.
The red Stop Engine warning light indicates a major engine fault that may result in engine
damage. The operator should move the vehicle to a safe location and shutdown the engine.
The Malfunction Indicator (MIL) light provides an indication to the vehicle operator that a
fault has occurred on an emission related component. This light may illuminate at the same
time as the Check Engine light. The operator can drive the vehicle to the end of their shift
and call service to remedy the problem.
The Diesel Particulate Filter (DPF) light will illuminate when a regeneration is necessary.
There are progressive stages of need for regeneration indicated by this light:
1. DPF on solid (low to medium levels of particulate build-up). The vehicle requires
regeneration but should be able to complete the current mission. Perform a regeneration
in a reasonable amount of time.
— Ensure the Regen Inhibit Switch is not activated.
— Initiate a DPF regeneration by switching to a more challenging duty cycle (such as
highway driving for at least 20 minutes or pumping)
— OR perform a parked regeneration.
2. DPF flashing (medium to high levels of particulate build-up). DPF reaching system limits
and regeneration required as soon as possible.
— Perform a parked regeneration as soon as possible OR change to a more
challenging duty cycle.
3. DPF flashing, CEL lit. System has REACHED limitations.
— Parked regeneration must be performed in a safe location. If lamps remain on after
parked regeneration, repeat the parked regeneration. If second attempt fails, have
vehicle serviced.
4. DPF flashing, CEL lit, and Stop Engine light lit. System has EXCEEDED limitations.
ENGINE SHUTDOWN.
— Parked regeneration
must be performed in a safe location. If lamps remain on after
parked regeneration, repeat the parked regeneration. If second attempt fails, have
vehicle serviced.
— Engine can be restarted, but a parked regeneration must be initiated within 30
seconds or engine will shut down.
ON SOLID
FLASHING
FLASHING
FLASHING