Page 550 - Foton Workshop Manual - Auman EST-M

EG - 34 Engine section – Engine (Cummins ISF3.8)

DTC code DTC definition DTC check condition Failed part

• Solenoid valve of Cylinder 1 injector
The current of solenoid valve drive
• Connector in poor contact or harness
322 circuit of Cylinder 1 injector is lower When engine running
open circuit
than the normal value or open
• Engine ECM
• Solenoid valve of Cylinder 3 injector
The current of solenoid valve drive
• Connector in poor contact or harness
324 circuit of Cylinder 3 injector is lower When engine running
open circuit
than the normal value or open
• Engine ECM

• Solenoid valve of Cylinder 2 injector
The current of solenoid valve drive
• Connector in poor contact or harness
331 circuit of Cylinder 2 injector is lower When engine running
open circuit
than the normal value or open
• Engine ECM
• Solenoid valve of Cylinder 4 injector
The current of solenoid valve drive
• Connector in poor contact or harness
332 circuit of Cylinder 4 injector is lower When engine running
open circuit
than the normal value or open
• Engine ECM

The engine control module gives • Battery
343 Ignition switch at ON
warning for internal hardware failure • Engine ECM

When the engine speed is • Battery
higher than 500r/min and the • Connector in poor contact or harness
351 Injector power supply failure
battery charging rate is higher is short or open
than the minimum threshold • Engine ECM

• Engine ECM sensor power supply 1
The voltage of engine ECM sensor
power supply 1 is lower than the Ignition switch at ON and the is short to the ground
352
normal value or short to the low engine is running • Sensor connector in poor contact
voltage power supply • Engine ECM

The voltage of engine ECM sensor
• Engine ECM sensor power supply 1
power supply 1 is higher than the Engine running or ignition
386 circuit and power supply short
normal value or short to the low switch at ON
• Engine ECM
voltage power supply
• Engine oil pressure switch

• High pressure oil pump
The data of engine oil way pressure is
• Engine oil pressure switch,
415 valid but lower than the normal When engine running
connector or harness fault
working range
• Engine oil pressure pipeline leaks

• Engine ECM

EG-034