DIAGNOSTIC MANUAL
Table 187
Entry Conditions for a Parked Regen
A Parked Regen can only be performed when the DPF soot level threshold is reached. The DPF lamp will
flash or stay on solid, signaling the need for Regen.
The following conditions are required for a Parked Regen:
•
Engine Running
•
DPF lamp is on
•
Parked Regen switch on
•
DPF Status signal displaying: Regen Needed
•
Red stop engine lamp not on
•
Engine Coolant Temperature is above or at least 170ºF (75ºC)
•
Vehicle speed not rolling
•
Inhibiting DTCs must not be active. Go to Regen Inhibitors page 152
•
Regen Inhibit switch not active (switch must be off)
•
PTO not active (switch must be off)
•
Exhaust Temperature sensors below safe thresholds:
•
DOCIT below 932°F (500°C)
•
DOCOT below 1202°F (650°C)
•
DPFOT below 1382°F (750°C)
Onboard Filter Cleanliness Test. DPF Status displays “Regen needed” and vehicle is unable to perform an Active
Regen, go to appropriate aftertreatment system diagnostics section in this manual.
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