Page 556 - Foton Workshop Manual - Auman EST-M

EG - 40 Engine section – Engine (Cummins ISF3.8)

DTC code DTC definition DTC check condition Failed part

• Urea level sensor
1699 Urea level sensor failure Ignition switch at ON • Urea level sensor signal circuit
• Engine ECM
• Engine ECM
1711 Injection unit message timeout Ignition switch at ON • CAN bus system
• CAN terminal resistance

• Fuel moisture sensor
The data of fuel moisture indicator is • Fuel
1852 valid but higher than the normal When engine running • Fuel pipe
working range (medium severity) • Fuel filter
• Engine ECM

• EGR pressure difference sensor
• EGR pressure difference sensor
The variable pressure data of waste
terminal connector in poor contact
1866 gas recirculation valve is not stable, When engine running
• EGR pressure difference sensor
intermittent or incorrect
connecting harness fault
• Engine ECM
The pressure difference sensor circuit
• Differential pressure sensor
voltage of post-treatment diesel oil
• Pressure difference sensor circuit
1879 particulate filter is higher than the Ignition switch at ON
and power supply short
normal value or short to the high
• Engine ECM
voltage power supply
• differential pressure sensor
The pressure difference sensor
• Pressure difference sensor circuit is
voltage of post-treatment diesel oil
short to the ground
1881 particulate filter is lower than the Ignition switch at ON
• Pressure difference sensor
normal value or short to the low
connector in poor contact
voltage power supply
• Engine ECM

1887 Outlet NO x sensor internal failure Ignition switch at ON • Urea level sensor
• EGR valve
The EGR valve controller exceeds the For the first time, when the • Fault of exhaust after treatment
1896
rated value ignition switch is at on system
• Engine ECM
• Engine oil suction pipe
The metering oil rail pressure data of
• Vertical tube in suction side fuel
Injector 1 is valid but higher than the
1911 When engine running filter assembly or fuel tank
normal working range (highest
Oil rail pressure sensor
severity level)
• Engine ECM

EG-040