Page 261 - Foton Workshop Manual - Tunland (AT)

DIAGNOSTICS - ENGINE CONTROL SYSTEM 04-115

Failure code Diagnostic items (DTC definition) Trouble location
Variable geometry turbocharger actu-
• Turbocharger actuator
P5177 ator software - abnormal updating
• ECM
rate
• Battery
04
Postprocessing diesel particulate fil- • Postprocessing DPF temperature
ter temperature sensor module - sensor module
P4161
voltage is higher than normal or short • Postprocessing DPF temperature
circuit to high voltage power supply sensor and its harness
• ECM
• Battery

Postprocessing diesel particulate fil- • Postprocessing DPF temperature
ter temperature sensor module - sensor module
P4162
voltage is lower than normal or short • Postprocessing DPF temperature
circuit to low voltage power supply sensor and its harness
• ECM

• Postprocessing DPF temperature
Postprocessing diesel particulate fil-
sensor module
ter temperature sensor module Data
P4163 • Postprocessing DPF temperature
is valid but above normal operating
sensor and its harness
range - medium severity level
• ECM
An internal error occurred in the en-
P111 gine control module - the malfunction • ECM
of the intelligent device or component
• Wire harness connection of

Engine magnetic speed / position lost crankshaft position sensor and
P115 two signals - The data is unstable, camshaft position sensor is re-
intermittent, or incorrect versed.
• ECM

• Intake Manifold Pressure Sensor
• Open circuit in engine harness,
Intake Manifold 1 Pressure Sensor-
connector or sensor circuit
P122 Voltage above normal or shorted to
• The signal wire is short of the sen-
high voltage power supply
sor power or battery voltage
• ECM

• Intake Manifold Pressure Sensor
• The signal circuit in the engine
Intake Manifold 1 Pressure Sensor- harness or sensor is open or
P123 Voltage above normal or shorted to shorted to ground
high voltage power supply • Power line is open or shorted to
ground
• ECM

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