Page 449 - Foton Workshop Manual - Tunland (AT)

DIAGNOSTICS - ENGINE CONTROL SYSTEM 04-303

DTC inspection
DTC DTC definition Trouble location
conditions
Postprocessing
• Postprocessing
preheat diesel
DOC temperature
oxidation converter
sensor and
inlet temperature postprocessing 04
P3152 sensor circuit -
DOC temperature
voltage is above
sensor module and
normal or shorted to
its harness
high voltage power
• ECM
supply
Postprocessing
preheat diesel
oxidation converter • 后处理DOC温度传
inlet temperature 感器和后处理DOC
P3153 sensor circuit - 温度传感器模块及
voltage is below 其线束
normal or shorted to • ECM
low voltage power
supply

Postprocessing
• Postprocessing
preheat diesel • When the key DOC temperature
oxidation converter switch is in ON sensor and
inlet temperature position, the postprocessing
P3155 sensor circuit - diagnosis continues DOC temperature
voltage is above to run. sensor module and
normal or shorted to
its harness
high voltage power
• ECM
supply
Postprocessing
• Postprocessing
preheat diesel
DOC temperature
oxidation converter sensor and
inlet temperature
postprocessing
P3156 sensor circuit -
DOC temperature
voltage is below
sensor module and
normal or shorted to
its harness
low voltage power • ECM
supply

Postprocessing • Injector
preheat diesel • Postprocessing
oxidation converter DOC oxidation
P3247 inlet temperature catalyst
sensor circuit - data • Postprocessing
is valid but above system
normal operating • ECM

Page 449