Page 558 - Foton Workshop Manual - Auman EST-M

EG - 42 Engine section – Engine (Cummins ISF3.8)

DTC code DTC definition DTC check condition Failed part

• Crankshaft position sensor
• Crankshaft position sensor signal
Engine crankshaft position sensor
wheel
2321 data unstable, intermittent or not When engine running
• Crankshaft position sensor
correct
connector or relevant harness fault
• Engine ECM

• Camshaft position sensor
• Camshaft position sensor signal
The data of engine camshaft position
wheel
2322 sensor is unstable, intermittent or When engine running
• Camshaft position sensor
incorrect
connector or relevant harness fault

• Engine ECM
• EGR valve
EGR valve control circuit voltage is
When the ignition switch is set • EGR valve control circuit is
lower than the normal value or
2351 to "ON" position and the engine short-circuited to ground
short-circuited to low voltage power
is running • Connector in poor contact
supply
• Engine ECM

• EGR valve
EGR valve control circuit voltage is
Ignition switch at ON and the • EGR valve control circuit and
2352 higher than the normal value or short
engine is running power supply are short-circuited
to the high voltage power supply
• Engine ECM
• Exhaust brake actuator
The voltage of engine (exhaust)
• Brake drive circuit is short to the
braking and driving circuit is lower
2369 When engine running ground
than the normal value or short to the
• Connector in poor contact
low voltage power supply
• Engine ECM
• Exhaust brake actuator
The voltage of engine (exhaust)
braking and driving circuit is higher • Brake drive circuit and power
2371 When engine running
than the normal value or short to the supply short
high voltage power supply • Engine ECM

• Intake heater
The voltage of air intake heater
Ignition switch at ON and start • Air intake heater circuit of Engine
circuit of Engine 1 is higher than the
2555 the pulse-width modulation 1 and power supply short
normal value or short to the high
(PWM) device • Intake heater relay
voltage power supply
• Engine ECM

EG-042