jcb JS300 Service Manual page 528

Fault Codes
Code Causes
P042B, DPD exhaust gas temperature sensor 2 fault
P042C,
P042B
P0426, DPD exhaust gas temperature sensor 1 fault
P0427,
P0428
P1455 Time period between DPD regeneration is exceeded Engine torque reduction, DPD regeneration
P1471 DPD regeneration insufficient
P1669 DPD regeneration indicator symbol fault
P242F DPD restriction
P2452, DPD differential pressure sensor fault
P2453,
P2454,
P2455,
P2456
P2458 DPD regeneration maximum time duration
exceeded for three consecutive regeneration events
C-103
Result
suspended, EGR control suspended
Engine torque reduction, DPD regeneration
suspended, EGR control suspended
Engine torque reduction, DPD regeneration
suspended, EGR control suspended
Engine torque reduction, DPD regeneration
suspended, EGR control suspended, default
differential pressure valve substituted
Engine torque reduction
9813/5100-1
Section C - Electrics
Engine and Power Control
Engine Exhaust After Treatment
C-103