Page 950 - Workshop Manual - Tunland (2017)

04-264 DIAGNOSTICS - ENGINE CONTROL SYSTEM

04 DTC inspection
DTC DTC definition Trouble location
conditions

• Battery
• Postprocessing
DPF temperature
Postprocessing diesel sensor module
particulate filter outlet • Postprocessing
P4151 temperature sensor DPF temperature
module - abnormal sensor and its
update rate harness
• CAN bus and its
harness
• ECM

• Postprocessing
Postprocessing diesel DPF temperature
particulate filter sensor module
temperature sensor • Postprocessing
P4158
module - intelligent DPF temperature
device or component sensor and its
fault harness
• ECM
• After the engine
operates or the key • Battery
Postprocessing diesel switch is in the ON • Postprocessing
particulate filter position, the DPF temperature
temperature sensor diagnosis continues sensor module
P4161 circuit - voltage is to run. • Postprocessing
above normal or DPF temperature
shorted to high sensor and its
voltage power supply harness
• ECM

• Battery
Postprocessing diesel • Postprocessing
particulate filter DPF temperature
temperature sensor sensor module
P4162 circuit - voltage is • Postprocessing
below normal or DPF temperature
shorted to high sensor and its
voltage power supply harness
• ECM
Postprocessing diesel
• Postprocessing
particulate filter
DPF temperature
temperature sensor
P4163 sensor module
module - data is valid
• Postprocessing
but above normal
operating range - DPF temperature