Page 560 - Foton Workshop Manual - Auman EST-M

EG - 44 Engine section – Engine (Cummins ISF3.8)

DTC code DTC definition DTC check condition Failed part

• EGP inlet temperature sensor
EGP outlet temperature sensor
3146 Ignition switch at ON • Sensor short to the power supply
short to the power supply or open
• Engine ECM

• EGP inlet temperature sensor
EGP outlet temperature sensor
3147 Ignition switch at ON • Sensor short to the ground
short to ground
• Engine ECM

3151 Lack of catalytic agent When engine running • Catalytic too little

• Intake air temperature sensor
EGP inlet and outlet temperature Ignition switch at ON and the
3163 • EGP inlet temperature sensor
sensors connected reversely engine is running
• Engine ECM
SCR catalytic agent temperature
Ignition switch at ON and the • Urea can temperature sensor
3164 too high which causes the engine
engine is running • Engine ECM
torque limit

Post-treatment catalytic agent Ignition switch at ON and the • Urea can temperature sensor
3236
temperature high engine is running • Engine ECM

Ignition switch at ON and the
3569 SCR injection cell motor failure • Urea pump assembly fault
engine is running

Ignition switch at ON and the • Blockage of urea outlet pipe
3575 Urea return pipe blocked
engine is running • Impurities in urea or failure of urea

• Nitrogen oxide sensor power supply
Outlet No x sensor power supply Ignition switch at ON and the
3681 circuit open or short
failure engine is running
• Engine ECM

• Nitrogen oxide sensor
SCR injection cell injection Ignition switch at ON and the
3697 • Urea pump assembly
quantity abnormal engine is running
• Engine ECM

• Nitrogen oxide sensor
SCR injection cell injection Ignition switch at ON and the
3726 • Urea pump assembly
quantity abnormal engine is running
• Engine ECM

• Blockage or breakage of brake air pipe
SCR injection cell air supply too Ignition switch at ON and the
3738 • Air solenoid valve
low engine is running
• Engine ECM

EG-044