Page 277 - Foton Workshop Manual - Tunland (AT)

DIAGNOSTICS - ENGINE CONTROL SYSTEM 04-131

Failure code Diagnostic items (DTC definition) Trouble location
• EGR system
• Intake mass flow sensor and its
Engine EGR system - data valid but
harness
P3383 above normal operating range - • Intake throttle actuator
medium severity level
• Intake system 04
• ECM

• ABS、BCM、CAN bus and har-
Anti lock brake (ABS) controller -
P3488 ness
Abnormal updating rate
• ECM
• Intake throttle actuator position
sensor
Engine intake air throttle actuator
• Open circuit in harness, connector
position sensor circuit - voltage is
P3539 or sensor loop
above normal or shorted to high
• The signal line is short to the sen-
voltage power supply
sor power
• ECM

• Intake throttle actuator position
sensor

Engine intake air throttle actuator • The signal circuit is open or shorted
position sensor circuit - voltage is to the ground
P3541
below normal or shorted to low volt- • Power line is open or shorted to
age power supply ground
• Sensor is shorted to the ground
• ECM

Engine VGT nozzle position - me-
• Turbocharger
P3616 chanical system is not responding or
• ECM
misaligned
Engine control module calibration
P3697 memory - the intelligent device or • ECM
component fault

Engine protection torque decrease -
P3714 • ECM
condition exists
High pressure common rail fuel
pressure reducing valve - mechanical
P3727 • ECM
system is not responding or mis-
aligned
Instrument control module - Abnor- • BCM, CAN bus and its harness
P3731
mal updating rate • ECM

Postprocessing diesel particulate fil- • Battery
P4151 ter temperature sensor module - Ab- • Postprocessing DPF temperature
normal updating rate sensor module

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