Peterbilt
Error Codes
PACCAR MX-13 Derate
Peterbilt
Commercial Truck
Peterbilt with PACCAR MX-13 derate is usually after-treatment: DEF, DPF, or …
DEF Warning
Peterbilt
Commercial Truck
A Peterbilt DEF warning means the SCR system has detected low fluid, poor …
DPF Regen Required
Peterbilt
Commercial Truck
A Peterbilt regen required indicator means the DPF is full of soot.<br>Drive at …
PACCAR Engine Fault
Peterbilt
Commercial Truck
A Peterbilt amber engine warning indicates a PACCAR MX engine fault.<br>A J1939 …